init: v1.1.0+2 baseline

.gitignore

@@ -0,0 +1,43 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+migrate_working_dir/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+**/ios/Flutter/.last_build_id
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.pub-cache/
+.pub/
+/build/
+
+# Symbolication related
+app.*.symbols
+
+# Obfuscation related
+app.*.map.json
+
+# Android Studio will place build artifacts here
+/android/app/debug
+/android/app/profile
+/android/app/release

.metadata

@@ -0,0 +1,45 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: "dec2ee5c1f98f8e84a7d5380c05eb8a3d0a81668"
+  channel: "stable"
+
+project_type: app
+
+# Tracks metadata for the flutter migrate command
+migration:
+  platforms:
+    - platform: root
+      create_revision: dec2ee5c1f98f8e84a7d5380c05eb8a3d0a81668
+      base_revision: dec2ee5c1f98f8e84a7d5380c05eb8a3d0a81668
+    - platform: android
+      create_revision: dec2ee5c1f98f8e84a7d5380c05eb8a3d0a81668
+      base_revision: dec2ee5c1f98f8e84a7d5380c05eb8a3d0a81668
+    - platform: ios
+      create_revision: dec2ee5c1f98f8e84a7d5380c05eb8a3d0a81668
+      base_revision: dec2ee5c1f98f8e84a7d5380c05eb8a3d0a81668
+    - platform: linux
+      create_revision: dec2ee5c1f98f8e84a7d5380c05eb8a3d0a81668
+      base_revision: dec2ee5c1f98f8e84a7d5380c05eb8a3d0a81668
+    - platform: macos
+      create_revision: dec2ee5c1f98f8e84a7d5380c05eb8a3d0a81668
+      base_revision: dec2ee5c1f98f8e84a7d5380c05eb8a3d0a81668
+    - platform: web
+      create_revision: dec2ee5c1f98f8e84a7d5380c05eb8a3d0a81668
+      base_revision: dec2ee5c1f98f8e84a7d5380c05eb8a3d0a81668
+    - platform: windows
+      create_revision: dec2ee5c1f98f8e84a7d5380c05eb8a3d0a81668
+      base_revision: dec2ee5c1f98f8e84a7d5380c05eb8a3d0a81668
+
+  # User provided section
+
+  # List of Local paths (relative to this file) that should be
+  # ignored by the migrate tool.
+  #
+  # Files that are not part of the templates will be ignored by default.
+  unmanaged_files:
+    - 'lib/main.dart'
+    - 'ios/Runner.xcodeproj/project.pbxproj'

README.md

@@ -0,0 +1,16 @@
+# banxiang_app
+
+A new Flutter project.
+
+## Getting Started
+
+This project is a starting point for a Flutter application.
+
+A few resources to get you started if this is your first Flutter project:
+
+- [Lab: Write your first Flutter app](https://docs.flutter.dev/get-started/codelab)
+- [Cookbook: Useful Flutter samples](https://docs.flutter.dev/cookbook)
+
+For help getting started with Flutter development, view the
+[online documentation](https://docs.flutter.dev/), which offers tutorials,
+samples, guidance on mobile development, and a full API reference.

analysis_options.yaml

@@ -0,0 +1,28 @@
+# This file configures the analyzer, which statically analyzes Dart code to
+# check for errors, warnings, and lints.
+#
+# The issues identified by the analyzer are surfaced in the UI of Dart-enabled
+# IDEs (https://dart.dev/tools#ides-and-editors). The analyzer can also be
+# invoked from the command line by running `flutter analyze`.
+
+# The following line activates a set of recommended lints for Flutter apps,
+# packages, and plugins designed to encourage good coding practices.
+include: package:flutter_lints/flutter.yaml
+
+linter:
+  # The lint rules applied to this project can be customized in the
+  # section below to disable rules from the `package:flutter_lints/flutter.yaml`
+  # included above or to enable additional rules. A list of all available lints
+  # and their documentation is published at https://dart.dev/lints.
+  #
+  # Instead of disabling a lint rule for the entire project in the
+  # section below, it can also be suppressed for a single line of code
+  # or a specific dart file by using the `// ignore: name_of_lint` and
+  # `// ignore_for_file: name_of_lint` syntax on the line or in the file
+  # producing the lint.
+  rules:
+    # avoid_print: false  # Uncomment to disable the `avoid_print` rule
+    # prefer_single_quotes: true  # Uncomment to enable the `prefer_single_quotes` rule
+
+# Additional information about this file can be found at
+# https://dart.dev/guides/language/analysis-options

android/.gitignore

@@ -0,0 +1,13 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks

android/app/build.gradle

@@ -0,0 +1,44 @@
+plugins {
+    id "com.android.application"
+    id "kotlin-android"
+    // The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins.
+    id "dev.flutter.flutter-gradle-plugin"
+}
+
+android {
+    namespace = "com.banxiang.banxiang_app"
+    compileSdk = 35
+    ndkVersion = flutter.ndkVersion
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
+    }
+
+    kotlinOptions {
+        jvmTarget = JavaVersion.VERSION_1_8
+    }
+
+    defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId = "com.banxiang.banxiang_app"
+        // You can update the following values to match your application needs.
+        // For more information, see: https://flutter.dev/to/review-gradle-config.
+        minSdk = flutter.minSdkVersion
+        targetSdk = flutter.targetSdkVersion
+        versionCode = flutter.versionCode
+        versionName = flutter.versionName
+    }
+
+    buildTypes {
+        release {
+            // TODO: Add your own signing config for the release build.
+            // Signing with the debug keys for now, so `flutter run --release` works.
+            signingConfig = signingConfigs.debug
+        }
+    }
+}
+
+flutter {
+    source = "../.."
+}

android/app/src/debug/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

android/app/src/main/AndroidManifest.xml

@@ -0,0 +1,45 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <application
+        android:label="伴享"
+        android:name="${applicationName}"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:launchMode="singleTop"
+            android:taskAffinity=""
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <!-- Specifies an Android theme to apply to this Activity as soon as
+                 the Android process has started. This theme is visible to the user
+                 while the Flutter UI initializes. After that, this theme continues
+                 to determine the Window background behind the Flutter UI. -->
+            <meta-data
+              android:name="io.flutter.embedding.android.NormalTheme"
+              android:resource="@style/NormalTheme"
+              />
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+        <!-- Don't delete the meta-data below.
+             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
+        <meta-data
+            android:name="flutterEmbedding"
+            android:value="2" />
+    </application>
+    <!-- Required to query activities that can process text, see:
+         https://developer.android.com/training/package-visibility and
+         https://developer.android.com/reference/android/content/Intent#ACTION_PROCESS_TEXT.
+
+         In particular, this is used by the Flutter engine in io.flutter.plugin.text.ProcessTextPlugin. -->
+    <queries>
+        <intent>
+            <action android:name="android.intent.action.PROCESS_TEXT"/>
+            <data android:mimeType="text/plain"/>
+        </intent>
+    </queries>
+</manifest>

android/app/src/main/kotlin/com/banxiang/banxiang_app/MainActivity.kt

@@ -0,0 +1,5 @@
+package com.banxiang.banxiang_app
+
+import io.flutter.embedding.android.FlutterActivity
+
+class MainActivity: FlutterActivity()

android/app/src/main/res/drawable-v21/launch_background.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="?android:colorBackground" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

android/app/src/main/res/drawable/launch_background.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/white" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

android/app/src/main/res/values-night/styles.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             the Flutter engine draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>

android/app/src/main/res/values/styles.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             the Flutter engine draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>

android/app/src/profile/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

android/build.gradle

@@ -0,0 +1,20 @@
+allprojects {
+    repositories {
+        maven { url "https://maven.aliyun.com/repository/google" }
+        google()
+        maven { url "https://maven.aliyun.com/repository/central" }
+        mavenCentral()
+    }
+}
+
+rootProject.buildDir = "../build"
+subprojects {
+    project.buildDir = "${rootProject.buildDir}/${project.name}"
+}
+subprojects {
+    project.evaluationDependsOn(":app")
+}
+
+tasks.register("clean", Delete) {
+    delete rootProject.buildDir
+}

android/gradle.properties

@@ -0,0 +1,3 @@
+org.gradle.jvmargs=-Xmx4G -XX:MaxMetaspaceSize=2G -XX:+HeapDumpOnOutOfMemoryError
+android.useAndroidX=true
+android.enableJetifier=true

android/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://mirrors.cloud.tencent.com/gradle/gradle-8.3-all.zip

android/settings.gradle

@@ -0,0 +1,30 @@
+pluginManagement {
+    def flutterSdkPath = {
+        def properties = new Properties()
+        file("local.properties").withInputStream { properties.load(it) }
+        def flutterSdkPath = properties.getProperty("flutter.sdk")
+        assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
+        return flutterSdkPath
+    }()
+
+    includeBuild("$flutterSdkPath/packages/flutter_tools/gradle")
+
+    repositories {
+        maven { url = "https://maven.aliyun.com/repository/google" }
+        maven { url = "https://maven.aliyun.com/repository/central" }
+        maven { url = "https://maven.aliyun.com/repository/public" }
+        maven { url "https://maven.aliyun.com/repository/google" }
+        google()
+        maven { url "https://maven.aliyun.com/repository/central" }
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+
+plugins {
+    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
+    id "com.android.application" version "8.1.0" apply false
+    id "org.jetbrains.kotlin.android" version "1.8.22" apply false
+}
+
+include ":app"

ios/.gitignore

@@ -0,0 +1,34 @@
+**/dgph
+*.mode1v3
+*.mode2v3
+*.moved-aside
+*.pbxuser
+*.perspectivev3
+**/*sync/
+.sconsign.dblite
+.tags*
+**/.vagrant/
+**/DerivedData/
+Icon?
+**/Pods/
+**/.symlinks/
+profile
+xcuserdata
+**/.generated/
+Flutter/App.framework
+Flutter/Flutter.framework
+Flutter/Flutter.podspec
+Flutter/Generated.xcconfig
+Flutter/ephemeral/
+Flutter/app.flx
+Flutter/app.zip
+Flutter/flutter_assets/
+Flutter/flutter_export_environment.sh
+ServiceDefinitions.json
+Runner/GeneratedPluginRegistrant.*
+
+# Exceptions to above rules.
+!default.mode1v3
+!default.mode2v3
+!default.pbxuser
+!default.perspectivev3

ios/Flutter/AppFrameworkInfo.plist

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+  <key>CFBundleDevelopmentRegion</key>
+  <string>en</string>
+  <key>CFBundleExecutable</key>
+  <string>App</string>
+  <key>CFBundleIdentifier</key>
+  <string>io.flutter.flutter.app</string>
+  <key>CFBundleInfoDictionaryVersion</key>
+  <string>6.0</string>
+  <key>CFBundleName</key>
+  <string>App</string>
+  <key>CFBundlePackageType</key>
+  <string>FMWK</string>
+  <key>CFBundleShortVersionString</key>
+  <string>1.0</string>
+  <key>CFBundleSignature</key>
+  <string>????</string>
+  <key>CFBundleVersion</key>
+  <string>1.0</string>
+  <key>MinimumOSVersion</key>
+  <string>12.0</string>
+</dict>
+</plist>

ios/Flutter/Debug.xcconfig

@@ -0,0 +1 @@
+#include "Generated.xcconfig"

ios/Flutter/Release.xcconfig

@@ -0,0 +1 @@
+#include "Generated.xcconfig"

ios/Runner.xcodeproj/project.pbxproj

@@ -0,0 +1,616 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 54;
+	objects = {
+
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+		3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */; };
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+			remoteInfo = Runner;
+		};
+/* End PBXContainerItemProxy section */
+
+/* Begin PBXCopyFilesBuildPhase section */
+		9705A1C41CF9048500538489 /* Embed Frameworks */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = "";
+			dstSubfolderSpec = 10;
+			files = (
+			);
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+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXCopyFilesBuildPhase section */
+
+/* Begin PBXFileReference section */
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+		97C147021CF9000F007C117D /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
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+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		331C8082294A63A400263BE5 /* RunnerTests */ = {
+			isa = PBXGroup;
+			children = (
+				331C807B294A618700263BE5 /* RunnerTests.swift */,
+			);
+			path = RunnerTests;
+			sourceTree = "<group>";
+		};
+		9740EEB11CF90186004384FC /* Flutter */ = {
+			isa = PBXGroup;
+			children = (
+				3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */,
+				9740EEB21CF90195004384FC /* Debug.xcconfig */,
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+				97C147031CF9000F007C117D /* Debug */,
+				97C147041CF9000F007C117D /* Release */,
+				249021D3217E4FDB00AE95B9 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		97C147051CF9000F007C117D /* Build configuration list for PBXNativeTarget "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				97C147061CF9000F007C117D /* Debug */,
+				97C147071CF9000F007C117D /* Release */,
+				249021D4217E4FDB00AE95B9 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 97C146E61CF9000F007C117D /* Project object */;
+}

ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:">
+   </FileRef>
+</Workspace>

ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>PreviewsEnabled</key>
+	<false/>
+</dict>
+</plist>

ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme

@@ -0,0 +1,98 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1510"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+               BuildableName = "Runner.app"
+               BlueprintName = "Runner"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <Testables>
+         <TestableReference
+            skipped = "NO"
+            parallelizable = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "331C8080294A63A400263BE5"
+               BuildableName = "RunnerTests.xctest"
+               BlueprintName = "RunnerTests"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Profile"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

ios/Runner.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+</Workspace>

ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

ios/Runner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>PreviewsEnabled</key>
+	<false/>
+</dict>
+</plist>

ios/Runner/AppDelegate.swift

@@ -0,0 +1,13 @@
+import Flutter
+import UIKit
+
+@main
+@objc class AppDelegate: FlutterAppDelegate {
+  override func application(
+    _ application: UIApplication,
+    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
+  ) -> Bool {
+    GeneratedPluginRegistrant.register(with: self)
+    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
+  }
+}

ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,122 @@
+{
+  "images" : [
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "83.5x83.5",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-83.5x83.5@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "1024x1024",
+      "idiom" : "ios-marketing",
+      "filename" : "Icon-App-1024x1024@1x.png",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json

@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@3x.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md

@@ -0,0 +1,5 @@
+# Launch Screen Assets
+
+You can customize the launch screen with your own desired assets by replacing the image files in this directory.
+
+You can also do it by opening your Flutter project's Xcode project with `open ios/Runner.xcworkspace`, selecting `Runner/Assets.xcassets` in the Project Navigator and dropping in the desired images.

ios/Runner/Base.lproj/LaunchScreen.storyboard

@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="12121" systemVersion="16G29" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12089"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="Ydg-fD-yQy"/>
+                        <viewControllerLayoutGuide type="bottom" id="xbc-2k-c8Z"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <imageView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" image="LaunchImage" translatesAutoresizingMaskIntoConstraints="NO" id="YRO-k0-Ey4">
+                            </imageView>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <constraints>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerX" secondItem="Ze5-6b-2t3" secondAttribute="centerX" id="1a2-6s-vTC"/>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerY" secondItem="Ze5-6b-2t3" secondAttribute="centerY" id="4X2-HB-R7a"/>
+                        </constraints>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+    <resources>
+        <image name="LaunchImage" width="168" height="185"/>
+    </resources>
+</document>

ios/Runner/Base.lproj/Main.storyboard

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/>
+    </dependencies>
+    <scenes>
+        <!--Flutter View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="FlutterViewController" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
+                        <viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+        </scene>
+    </scenes>
+</document>

ios/Runner/Info.plist

@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleDisplayName</key>
+	<string>Banxiang App</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>banxiang_app</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>$(FLUTTER_BUILD_NAME)</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>$(FLUTTER_BUILD_NUMBER)</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>CADisableMinimumFrameDurationOnPhone</key>
+	<true/>
+	<key>UIApplicationSupportsIndirectInputEvents</key>
+	<true/>
+</dict>
+</plist>

ios/Runner/Runner-Bridging-Header.h

@@ -0,0 +1 @@
+#import "GeneratedPluginRegistrant.h"

ios/RunnerTests/RunnerTests.swift

@@ -0,0 +1,12 @@
+import Flutter
+import UIKit
+import XCTest
+
+class RunnerTests: XCTestCase {
+
+  func testExample() {
+    // If you add code to the Runner application, consider adding tests here.
+    // See https://developer.apple.com/documentation/xctest for more information about using XCTest.
+  }
+
+}

lib/main.dart

@@ -0,0 +1,48 @@
+import 'package:flutter/material.dart';
+import 'screens/login_screen.dart';
+import 'screens/activity_list_screen.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+void main() async {
+  WidgetsFlutterBinding.ensureInitialized();
+  final prefs = await SharedPreferences.getInstance();
+  final token = prefs.getString('auth_token');
+  final isLoggedIn = token != null && token.isNotEmpty;
+  
+  runApp(BanxiangApp(isLoggedIn: isLoggedIn));
+}
+
+class BanxiangApp extends StatelessWidget {
+  final bool isLoggedIn;
+  
+  const BanxiangApp({required this.isLoggedIn});
+  
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: '伴享',
+      debugShowCheckedModeBanner: false,
+      theme: ThemeData(
+        primaryColor: Color(0xFFFF6B35),
+        scaffoldBackgroundColor: const Color(0xFFFFF8F0),
+        appBarTheme: AppBarTheme(
+          backgroundColor: Colors.white,
+          foregroundColor: Color(0xFF333333),
+          elevation: 0,
+        ),
+        bottomNavigationBarTheme: BottomNavigationBarThemeData(
+          selectedItemColor: Color(0xFFFF6B35),
+          unselectedItemColor: Color(0xFF999999),
+          backgroundColor: Colors.white,
+          type: BottomNavigationBarType.fixed,
+        ),
+        colorScheme: ColorScheme.fromSeed(
+          seedColor: Color(0xFFFF6B35),
+          primary: Color(0xFFFF6B35),
+          secondary: Color(0xFFFFB84D),
+        ),
+      ),
+      home: isLoggedIn ? ActivityListScreen() : LoginScreen(),
+    );
+  }
+}

lib/main.dart.bak

@@ -0,0 +1,84 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_localizations/flutter_localizations.dart';
+import 'theme.dart';
+import 'services/auth_service.dart';
+import 'screens/login_screen.dart';
+import 'screens/main_screen.dart';
+
+void main() {
+  runApp(const BanxiangApp());
+}
+
+class BanxiangApp extends StatelessWidget {
+  const BanxiangApp({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: '伴享',
+      theme: AppTheme.lightTheme,
+      debugShowCheckedModeBanner: false,
+      localizationsDelegates: const [
+        GlobalMaterialLocalizations.delegate,
+        GlobalWidgetsLocalizations.delegate,
+        GlobalCupertinoLocalizations.delegate,
+      ],
+      supportedLocales: const [Locale('zh', 'CN')],
+      locale: const Locale('zh', 'CN'),
+      home: const SplashScreen(),
+    );
+  }
+}
+
+class SplashScreen extends StatefulWidget {
+  const SplashScreen({super.key});
+  @override
+  State<SplashScreen> createState() => _SplashScreenState();
+}
+
+class _SplashScreenState extends State<SplashScreen> {
+  @override
+  void initState() {
+    super.initState();
+    _checkAuth();
+  }
+
+  void _checkAuth() async {
+    await Future.delayed(const Duration(seconds: 2));
+    final loggedIn = await AuthService.checkLoginStatus();
+    if (mounted) {
+      Navigator.pushReplacement(
+        context,
+        MaterialPageRoute(builder: (_) => loggedIn ? const MainScreen() : const LoginScreen()),
+      );
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      backgroundColor: Colors.white,
+      body: Center(
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Container(
+              width: 100, height: 100,
+              decoration: BoxDecoration(
+                color: const Color(0xFF1976D2),
+                borderRadius: BorderRadius.circular(24),
+              ),
+              child: const Icon(Icons.elderly, size: 56, color: Colors.white),
+            ),
+            const SizedBox(height: 24),
+            const Text('伴享', style: TextStyle(fontSize: 36, fontWeight: FontWeight.bold, color: Color(0xFF333333))),
+            const SizedBox(height: 8),
+            const Text('银发生活社交平台', style: TextStyle(fontSize: 16, color: Color(0xFF999999))),
+            const SizedBox(height: 48),
+            const SizedBox(width: 24, height: 24, child: CircularProgressIndicator(strokeWidth: 2)),
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/models/activity.dart

@@ -0,0 +1,23 @@
+class Activity {
+  String id;
+  String title;
+  String category;
+  DateTime time;
+  String location;
+  int maxParticipants;
+  int currentParticipants;
+  String creatorName;
+  String description;
+  
+  Activity({
+    required this.id,
+    required this.title,
+    required this.category,
+    required this.time,
+    required this.location,
+    required this.maxParticipants,
+    this.currentParticipants = 0,
+    required this.creatorName,
+    this.description = '',
+  });
+}

lib/models/hospital.dart

@@ -0,0 +1,49 @@
+class Hospital {
+  String id;
+  String name;
+  String address;
+  List<String> departments;
+  
+  Hospital({
+    required this.id,
+    required this.name,
+    required this.address,
+    required this.departments,
+  });
+}
+
+class Doctor {
+  String id;
+  String name;
+  String department;
+  String title;
+  String fee;
+  
+  Doctor({
+    required this.id,
+    required this.name,
+    required this.department,
+    required this.title,
+    required this.fee,
+  });
+}
+
+class Appointment {
+  String id;
+  String hospitalName;
+  String doctorName;
+  String department;
+  DateTime time;
+  String status;
+  String fee;
+  
+  Appointment({
+    required this.id,
+    required this.hospitalName,
+    required this.doctorName,
+    required this.department,
+    required this.time,
+    required this.status,
+    required this.fee,
+  });
+}

lib/models/message.dart

@@ -0,0 +1,11 @@
+class Message {
+  String text;
+  bool isUser;
+  DateTime time;
+  
+  Message({
+    required this.text,
+    required this.isUser,
+    DateTime? time,
+  }) : time = time ?? DateTime.now();
+}

lib/models/user.dart

@@ -0,0 +1,21 @@
+class User {
+  String? id;
+  String phone;
+  String? nickname;
+  String? avatar;
+  int? birthYear;
+  String? gender;
+  String? city;
+  List<String> interests;
+
+  User({
+    this.id,
+    required this.phone,
+    this.nickname,
+    this.avatar,
+    this.birthYear,
+    this.gender,
+    this.city,
+    this.interests = const [],
+  });
+}

lib/screens/activity_detail_screen.dart

@@ -0,0 +1,487 @@
+import 'package:flutter/material.dart';
+import 'package:carousel_slider/carousel_slider.dart';
+
+class ActivityDetailScreen extends StatefulWidget {
+  final Map<String, dynamic> activity;
+
+  ActivityDetailScreen({required this.activity});
+
+  @override
+  _ActivityDetailScreenState createState() => _ActivityDetailScreenState();
+}
+
+class _ActivityDetailScreenState extends State<ActivityDetailScreen> {
+  final TextEditingController _commentController = TextEditingController();
+  bool _isLiked = false;
+  int _likeCount = 0;
+  int _currentImageIndex = 0;
+  
+  // 模拟评论数据
+  final List<Map<String, dynamic>> _comments = [
+    {
+      'userName': '张阿姨',
+      'avatar': 'https://i.pravatar.cc/150?img=1',
+      'content': '这个活动真不错，我也想参加！',
+      'time': '2小时前',
+      'likes': 5,
+    },
+    {
+      'userName': '李大爷',
+      'avatar': 'https://i.pravatar.cc/150?img=2',
+      'content': '上周参加过，很有意思',
+      'time': '5小时前',
+      'likes': 3,
+    },
+    {
+      'userName': '王阿姨',
+      'avatar': 'https://i.pravatar.cc/150?img=3',
+      'content': '地点在哪里呀？',
+      'time': '1天前',
+      'likes': 2,
+    },
+  ];
+
+  @override
+  void initState() {
+    super.initState();
+    _likeCount = (widget.activity['participants'] as int) * 2;
+  }
+
+  void _toggleLike() {
+    setState(() {
+      _isLiked = !_isLiked;
+      _likeCount += _isLiked ? 1 : -1;
+    });
+  }
+
+  void _postComment() {
+    if (_commentController.text.trim().isEmpty) {
+      return;
+    }
+
+    setState(() {
+      _comments.insert(0, {
+        'userName': '我',
+        'avatar': 'https://i.pravatar.cc/150?img=10',
+        'content': _commentController.text,
+        'time': '刚刚',
+        'likes': 0,
+      });
+    });
+
+    _commentController.clear();
+    FocusScope.of(context).unfocus();
+    
+    ScaffoldMessenger.of(context).showSnackBar(
+      SnackBar(
+        content: Text('评论成功！'),
+        backgroundColor: Color(0xFFFF6B35),
+        duration: Duration(seconds: 1),
+      ),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    // 模拟多张图片
+    final images = [
+      widget.activity['image'],
+      'https://picsum.photos/seed/${widget.activity['title'].hashCode + 1}/400/300',
+      'https://picsum.photos/seed/${widget.activity['title'].hashCode + 2}/400/300',
+    ];
+
+    return Scaffold(
+      backgroundColor: const Color(0xFFFFF8F0),
+      body: CustomScrollView(
+        slivers: [
+          // 图片轮播
+          SliverAppBar(
+            expandedHeight: 400,
+            pinned: true,
+            backgroundColor: Colors.white,
+            iconTheme: IconThemeData(color: Colors.white),
+            flexibleSpace: FlexibleSpaceBar(
+              background: Stack(
+                children: [
+                  CarouselSlider(
+                    options: CarouselOptions(
+                      height: 400,
+                      viewportFraction: 1.0,
+                      onPageChanged: (index, reason) {
+                        setState(() {
+                          _currentImageIndex = index;
+                        });
+                      },
+                    ),
+                    items: images.map((imageUrl) {
+                      return Container(
+                        width: double.infinity,
+                        color: Colors.grey[200],
+                        child: Stack(
+                          children: [
+                            Center(
+                              child: Icon(Icons.image, size: 60, color: Colors.grey[400]),
+                            ),
+                            Image.network(
+                              imageUrl,
+                              width: double.infinity,
+                              fit: BoxFit.cover,
+                              errorBuilder: (context, error, stackTrace) {
+                                return Container(
+                                  color: Colors.grey[200],
+                                  child: Center(
+                                    child: Icon(Icons.image, size: 60, color: Colors.grey[400]),
+                                  ),
+                                );
+                              },
+                            ),
+                          ],
+                        ),
+                      );
+                    }).toList(),
+                  ),
+                  // 指示器
+                  Positioned(
+                    bottom: 20,
+                    left: 0,
+                    right: 0,
+                    child: Row(
+                      mainAxisAlignment: MainAxisAlignment.center,
+                      children: images.asMap().entries.map((entry) {
+                        return Container(
+                          width: 8,
+                          height: 8,
+                          margin: EdgeInsets.symmetric(horizontal: 4),
+                          decoration: BoxDecoration(
+                            shape: BoxShape.circle,
+                            color: _currentImageIndex == entry.key
+                                ? Colors.white
+                                : Colors.white.withOpacity(0.4),
+                          ),
+                        );
+                      }).toList(),
+                    ),
+                  ),
+                ],
+              ),
+            ),
+          ),
+          
+          // 内容区域
+          SliverToBoxAdapter(
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                Padding(
+                  padding: EdgeInsets.all(16),
+                  child: Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    children: [
+                      // 标题
+                      Text(
+                        widget.activity['title'],
+                        style: TextStyle(
+                          fontSize: 22,
+                          fontWeight: FontWeight.bold,
+                          color: Color(0xFF333333),
+                        ),
+                      ),
+                      SizedBox(height: 12),
+                      
+                      // 用户信息
+                      Row(
+                        children: [
+                          CircleAvatar(
+                            radius: 20,
+                            backgroundImage: NetworkImage('https://i.pravatar.cc/150?img=5'),
+                          ),
+                          SizedBox(width: 12),
+                          Expanded(
+                            child: Column(
+                              crossAxisAlignment: CrossAxisAlignment.start,
+                              children: [
+                                Text(
+                                  '活动发起人',
+                                  style: TextStyle(
+                                    fontWeight: FontWeight.w600,
+                                    fontSize: 14,
+                                  ),
+                                ),
+                                Text(
+                                  '2天前',
+                                  style: TextStyle(
+                                    fontSize: 12,
+                                    color: Color(0xFF999999),
+                                  ),
+                                ),
+                              ],
+                            ),
+                          ),
+                          ElevatedButton(
+                            onPressed: () {},
+                            style: ElevatedButton.styleFrom(
+                              backgroundColor: Color(0xFFFF6B35),
+                              foregroundColor: Colors.white,
+                              shape: RoundedRectangleBorder(
+                                borderRadius: BorderRadius.circular(20),
+                              ),
+                              padding: EdgeInsets.symmetric(horizontal: 20, vertical: 8),
+                            ),
+                            child: Text('关注'),
+                          ),
+                        ],
+                      ),
+                      SizedBox(height: 16),
+                      
+                      // 活动详情
+                      Text(
+                        '这是一个非常有趣的活动，欢迎大家一起来参加！活动内容丰富多彩，适合所有年龄段的朋友。我们将在${widget.activity['location']}举行，期待您的到来！',
+                        style: TextStyle(
+                          fontSize: 15,
+                          color: Color(0xFF333333),
+                          height: 1.6,
+                        ),
+                      ),
+                      SizedBox(height: 16),
+                      
+                      // 位置和报名信息
+                      Container(
+                        padding: EdgeInsets.all(12),
+                        decoration: BoxDecoration(
+                          color: Color(0xFFFFF5F0),
+                          borderRadius: BorderRadius.circular(8),
+                        ),
+                        child: Column(
+                          children: [
+                            Row(
+                              children: [
+                                Icon(Icons.location_on, size: 18, color: Color(0xFFFF6B35)),
+                                SizedBox(width: 8),
+                                Text(
+                                  widget.activity['location'],
+                                  style: TextStyle(fontSize: 14),
+                                ),
+                              ],
+                            ),
+                            SizedBox(height: 8),
+                            Row(
+                              children: [
+                                Icon(Icons.people, size: 18, color: Color(0xFFFF6B35)),
+                                SizedBox(width: 8),
+                                Text(
+                                  '已有 ${widget.activity['participants']} 人报名',
+                                  style: TextStyle(fontSize: 14),
+                                ),
+                              ],
+                            ),
+                          ],
+                        ),
+                      ),
+                    ],
+                  ),
+                ),
+                
+                Divider(thickness: 8, color: Color(0xFFF5F5F5)),
+                
+                // 评论区标题
+                Padding(
+                  padding: EdgeInsets.all(16),
+                  child: Row(
+                    children: [
+                      Text(
+                        '评论',
+                        style: TextStyle(
+                          fontSize: 18,
+                          fontWeight: FontWeight.bold,
+                        ),
+                      ),
+                      SizedBox(width: 8),
+                      Text(
+                        '${_comments.length}',
+                        style: TextStyle(
+                          fontSize: 14,
+                          color: Color(0xFF999999),
+                        ),
+                      ),
+                    ],
+                  ),
+                ),
+              ],
+            ),
+          ),
+          
+          // 评论列表
+          SliverList(
+            delegate: SliverChildBuilderDelegate(
+              (context, index) {
+                final comment = _comments[index];
+                return _buildCommentItem(comment);
+              },
+              childCount: _comments.length,
+            ),
+          ),
+          
+          SliverToBoxAdapter(
+            child: SizedBox(height: 80),
+          ),
+        ],
+      ),
+      
+      // 底部操作栏
+      bottomNavigationBar: _buildBottomBar(),
+    );
+  }
+
+  Widget _buildCommentItem(Map<String, dynamic> comment) {
+    return Padding(
+      padding: EdgeInsets.symmetric(horizontal: 16, vertical: 12),
+      child: Row(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          CircleAvatar(
+            radius: 18,
+            backgroundImage: NetworkImage(comment['avatar']),
+          ),
+          SizedBox(width: 12),
+          Expanded(
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                Text(
+                  comment['userName'],
+                  style: TextStyle(
+                    fontWeight: FontWeight.w600,
+                    fontSize: 14,
+                  ),
+                ),
+                SizedBox(height: 4),
+                Text(
+                  comment['content'],
+                  style: TextStyle(
+                    fontSize: 14,
+                    color: Color(0xFF333333),
+                    height: 1.4,
+                  ),
+                ),
+                SizedBox(height: 8),
+                Row(
+                  children: [
+                    Text(
+                      comment['time'],
+                      style: TextStyle(
+                        fontSize: 12,
+                        color: Color(0xFF999999),
+                      ),
+                    ),
+                    SizedBox(width: 16),
+                    Icon(Icons.favorite_border, size: 14, color: Color(0xFF999999)),
+                    SizedBox(width: 4),
+                    Text(
+                      '${comment['likes']}',
+                      style: TextStyle(
+                        fontSize: 12,
+                        color: Color(0xFF999999),
+                      ),
+                    ),
+                  ],
+                ),
+              ],
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildBottomBar() {
+    return Container(
+      decoration: BoxDecoration(
+        color: Colors.white,
+        boxShadow: [
+          BoxShadow(
+            color: Colors.black.withOpacity(0.05),
+            blurRadius: 10,
+            offset: Offset(0, -2),
+          ),
+        ],
+      ),
+      child: SafeArea(
+        child: Padding(
+          padding: EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+          child: Row(
+            children: [
+              // 评论输入框
+              Expanded(
+                child: Container(
+                  height: 40,
+                  decoration: BoxDecoration(
+                    color: Color(0xFFF5F5F5),
+                    borderRadius: BorderRadius.circular(20),
+                  ),
+                  child: TextField(
+                    controller: _commentController,
+                    decoration: InputDecoration(
+                      hintText: '说点什么...',
+                      hintStyle: TextStyle(fontSize: 14, color: Color(0xFF999999)),
+                      border: InputBorder.none,
+                      contentPadding: EdgeInsets.symmetric(horizontal: 16, vertical: 10),
+                    ),
+                    onSubmitted: (_) => _postComment(),
+                  ),
+                ),
+              ),
+              SizedBox(width: 12),
+              
+              // 点赞按钮
+              GestureDetector(
+                onTap: _toggleLike,
+                child: Column(
+                  mainAxisSize: MainAxisSize.min,
+                  children: [
+                    Icon(
+                      _isLiked ? Icons.favorite : Icons.favorite_border,
+                      color: _isLiked ? Colors.red : Color(0xFF999999),
+                      size: 24,
+                    ),
+                    Text(
+                      '$_likeCount',
+                      style: TextStyle(fontSize: 12, color: Color(0xFF999999)),
+                    ),
+                  ],
+                ),
+              ),
+              SizedBox(width: 16),
+              
+              // 报名按钮
+              ElevatedButton(
+                onPressed: () {
+                  ScaffoldMessenger.of(context).showSnackBar(
+                    SnackBar(
+                      content: Text('报名成功！'),
+                      backgroundColor: Color(0xFFFF6B35),
+                    ),
+                  );
+                },
+                style: ElevatedButton.styleFrom(
+                  backgroundColor: Color(0xFFFF6B35),
+                  foregroundColor: Colors.white,
+                  shape: RoundedRectangleBorder(
+                    borderRadius: BorderRadius.circular(20),
+                  ),
+                  padding: EdgeInsets.symmetric(horizontal: 24, vertical: 10),
+                ),
+                child: Text('报名'),
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+
+  @override
+  void dispose() {
+    _commentController.dispose();
+    super.dispose();
+  }
+}

lib/screens/activity_list_screen.dart

@@ -0,0 +1,317 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_staggered_grid_view/flutter_staggered_grid_view.dart';
+import 'publish_screen.dart';
+import 'activity_detail_screen.dart';
+import 'dart:math';
+
+class ActivityListScreen extends StatefulWidget {
+  @override
+  _ActivityListScreenState createState() => _ActivityListScreenState();
+}
+
+class _ActivityListScreenState extends State<ActivityListScreen> {
+  int _selectedIndex = 0;
+  
+  // 模拟活动数据
+  final List<Map<String, dynamic>> activities = [
+    {
+      'title': '周末公园太极拳',
+      'location': '人民公园',
+      'participants': 12,
+      'image': 'https://picsum.photos/seed/1/400/300',
+    },
+    {
+      'title': '社区书法班开课啦',
+      'location': '社区活动中心',
+      'participants': 8,
+      'image': 'https://picsum.photos/seed/2/400/500',
+    },
+    {
+      'title': '广场舞队招新',
+      'location': '中央广场',
+      'participants': 25,
+      'image': 'https://picsum.photos/seed/3/400/400',
+    },
+    {
+      'title': '老年摄影兴趣小组',
+      'location': '文化馆',
+      'participants': 15,
+      'image': 'https://picsum.photos/seed/4/400/350',
+    },
+    {
+      'title': '周三棋牌活动',
+      'location': '社区会所',
+      'participants': 20,
+      'image': 'https://picsum.photos/seed/5/400/450',
+    },
+    {
+      'title': '健康养生讲座',
+      'location': '图书馆',
+      'participants': 30,
+      'image': 'https://picsum.photos/seed/6/400/380',
+    },
+  ];
+
+  void _onItemTapped(int index) {
+    if (index == 2) {
+      // 中间按钮 - 跳转到发布页面
+      Navigator.push(
+        context,
+        MaterialPageRoute(builder: (context) => PublishScreen()),
+      );
+      return;
+    }
+    setState(() {
+      _selectedIndex = index;
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      backgroundColor: const Color(0xFFFFF8F0),
+      appBar: AppBar(
+        title: Text('伴享', style: TextStyle(fontWeight: FontWeight.bold)),
+        centerTitle: true,
+        actions: [
+          IconButton(
+            icon: Icon(Icons.search),
+            onPressed: () {},
+          ),
+          IconButton(
+            icon: Icon(Icons.notifications_none),
+            onPressed: () {},
+          ),
+        ],
+      ),
+      body: _buildBody(),
+      bottomNavigationBar: _buildBottomNavigationBar(),
+      floatingActionButton: _buildFloatingActionButton(),
+      floatingActionButtonLocation: FloatingActionButtonLocation.centerDocked,
+    );
+  }
+
+  Widget _buildBody() {
+    return RefreshIndicator(
+      onRefresh: () async {
+        await Future.delayed(Duration(seconds: 1));
+        setState(() {});
+      },
+      child: Padding(
+        padding: EdgeInsets.all(8),
+        child: MasonryGridView.count(
+          crossAxisCount: 2,
+          mainAxisSpacing: 8,
+          crossAxisSpacing: 8,
+          itemCount: activities.length,
+          itemBuilder: (context, index) {
+            return _buildActivityCard(activities[index]);
+          },
+        ),
+      ),
+    );
+  }
+
+  Widget _buildActivityCard(Map<String, dynamic> activity) {
+    final random = Random(activity['title'].hashCode);
+    final height = 200.0 + random.nextInt(100);
+    
+    return GestureDetector(
+      onTap: () {
+        // 跳转到详情页
+        Navigator.push(
+          context,
+          MaterialPageRoute(
+            builder: (context) => ActivityDetailScreen(activity: activity),
+          ),
+        );
+      },
+      child: Container(
+        decoration: BoxDecoration(
+          color: Colors.white,
+          borderRadius: BorderRadius.circular(12),
+          boxShadow: [
+            BoxShadow(
+              color: Colors.black.withOpacity(0.08),
+              blurRadius: 8,
+              offset: Offset(0, 2),
+            ),
+          ],
+        ),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            // 封面图片
+            ClipRRect(
+              borderRadius: BorderRadius.vertical(top: Radius.circular(12)),
+              child: Container(
+                height: height,
+                width: double.infinity,
+                color: Colors.grey[200],
+                child: Stack(
+                  children: [
+                    Center(
+                      child: Icon(Icons.image, size: 40, color: Colors.grey[400]),
+                    ),
+                    Image.network(
+                      activity['image'],
+                      height: height,
+                      width: double.infinity,
+                      fit: BoxFit.cover,
+                      errorBuilder: (context, error, stackTrace) {
+                        return Container(
+                          color: Colors.grey[200],
+                          child: Center(
+                            child: Icon(Icons.image, size: 40, color: Colors.grey[400]),
+                          ),
+                        );
+                      },
+                    ),
+                  ],
+                ),
+              ),
+            ),
+            // 标题和信息
+            Padding(
+              padding: EdgeInsets.all(12),
+              child: Column(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: [
+                  Text(
+                    activity['title'],
+                    style: TextStyle(
+                      fontSize: 14,
+                      fontWeight: FontWeight.w600,
+                      color: Color(0xFF333333),
+                    ),
+                    maxLines: 2,
+                    overflow: TextOverflow.ellipsis,
+                  ),
+                  SizedBox(height: 8),
+                  Row(
+                    children: [
+                      Icon(Icons.location_on, size: 14, color: Color(0xFF999999)),
+                      SizedBox(width: 4),
+                      Expanded(
+                        child: Text(
+                          activity['location'],
+                          style: TextStyle(
+                            fontSize: 12,
+                            color: Color(0xFF999999),
+                          ),
+                          overflow: TextOverflow.ellipsis,
+                        ),
+                      ),
+                    ],
+                  ),
+                  SizedBox(height: 4),
+                  Row(
+                    children: [
+                      Icon(Icons.people, size: 14, color: Color(0xFF999999)),
+                      SizedBox(width: 4),
+                      Text(
+                        '${activity['participants']}人报名',
+                        style: TextStyle(
+                          fontSize: 12,
+                          color: Color(0xFF999999),
+                        ),
+                      ),
+                    ],
+                  ),
+                ],
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _buildBottomNavigationBar() {
+    return Container(
+      decoration: BoxDecoration(
+        color: Colors.white,
+        boxShadow: [
+          BoxShadow(
+            color: Colors.black.withOpacity(0.05),
+            blurRadius: 10,
+            offset: Offset(0, -2),
+          ),
+        ],
+      ),
+      child: SafeArea(
+        child: Container(
+          height: 60,
+          child: Row(
+            children: [
+              _buildNavItem(0, Icons.home, '首页'),
+              _buildNavItem(1, Icons.people, '好友'),
+              SizedBox(width: 60), // 中间按钮占位
+              _buildNavItem(3, Icons.message, '消息'),
+              _buildNavItem(4, Icons.person, '我的'),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+
+  Widget _buildNavItem(int index, IconData icon, String label) {
+    final isSelected = _selectedIndex == index;
+    return Expanded(
+      child: GestureDetector(
+        onTap: () => _onItemTapped(index),
+        behavior: HitTestBehavior.opaque,
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Icon(
+              icon,
+              color: isSelected ? Color(0xFFFF6B35) : Color(0xFF999999),
+              size: 24,
+            ),
+            SizedBox(height: 4),
+            Text(
+              label,
+              style: TextStyle(
+                fontSize: 11,
+                color: isSelected ? Color(0xFFFF6B35) : Color(0xFF999999),
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _buildFloatingActionButton() {
+    return Container(
+      width: 56,
+      height: 56,
+      margin: EdgeInsets.only(top: 30),
+      decoration: BoxDecoration(
+        shape: BoxShape.circle,
+        gradient: LinearGradient(
+          colors: [Color(0xFFFF6B35), Color(0xFFFFB84D)],
+          begin: Alignment.topLeft,
+          end: Alignment.bottomRight,
+        ),
+        boxShadow: [
+          BoxShadow(
+            color: Color(0xFFFF6B35).withOpacity(0.4),
+            blurRadius: 12,
+            offset: Offset(0, 4),
+          ),
+        ],
+      ),
+      child: Material(
+        color: Colors.transparent,
+        child: InkWell(
+          onTap: () => _onItemTapped(2),
+          customBorder: CircleBorder(),
+          child: Icon(Icons.add, color: Colors.white, size: 28),
+        ),
+      ),
+    );
+  }
+}

lib/screens/ai_chat_screen.dart

@@ -0,0 +1,164 @@
+import 'package:flutter/material.dart';
+import '../models/message.dart';
+import '../services/ai_service.dart';
+
+class AIChatScreen extends StatefulWidget {
+  @override
+  State<AIChatScreen> createState() => _AIChatScreenState();
+}
+
+class _AIChatScreenState extends State<AIChatScreen> {
+  final List<Message> _messages = [
+    Message(
+      text: '您好！我是伴享智能助手，有什么可以帮您的吗？',
+      isUser: false,
+    ),
+  ];
+  
+  final _textController = TextEditingController();
+  final _scrollController = ScrollController();
+  
+  void _sendMessage() {
+    if (_textController.text.trim().isEmpty) return;
+    
+    final newMessages = AIService.mockChat(_textController.text);
+    setState(() {
+      _messages.addAll(newMessages);
+    });
+    
+    _textController.clear();
+    
+    // 滚动到底部
+    Future.delayed(Duration(milliseconds: 100), () {
+      _scrollController.animateTo(
+        _scrollController.position.maxScrollExtent,
+        duration: Duration(milliseconds: 300),
+        curve: Curves.easeOut,
+      );
+    });
+  }
+  
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text('AI智能助手'),
+      ),
+      body: Column(
+        children: [
+          // 快捷指令
+          Container(
+            height: 60,
+            padding: EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+            child: ListView(
+              scrollDirection: Axis.horizontal,
+              children: [
+                _buildQuickButton('附近活动'),
+                _buildQuickButton('我要挂号'),
+                _buildQuickButton('帮我买菜'),
+              ],
+            ),
+          ),
+          Divider(height: 1),
+          // 消息列表
+          Expanded(
+            child: ListView.builder(
+              controller: _scrollController,
+              padding: EdgeInsets.all(16),
+              itemCount: _messages.length,
+              itemBuilder: (context, index) {
+                final message = _messages[index];
+                return _buildMessageBubble(message);
+              },
+            ),
+          ),
+          // 输入框
+          Container(
+            padding: EdgeInsets.all(8),
+            decoration: BoxDecoration(
+              color: Colors.white,
+              boxShadow: [
+                BoxShadow(
+                  color: Colors.black12,
+                  blurRadius: 4,
+                  offset: Offset(0, -2),
+                ),
+              ],
+            ),
+            child: Row(
+              children: [
+                // 语音按钮
+                IconButton(
+                  icon: Icon(Icons.mic, color: Color(0xFF333333)),
+                  onPressed: () {
+                    ScaffoldMessenger.of(context).showSnackBar(
+                      SnackBar(content: Text('语音功能开发中')),
+                    );
+                  },
+                ),
+                // 文字输入
+                Expanded(
+                  child: TextField(
+                    controller: _textController,
+                    decoration: InputDecoration(
+                      hintText: '输入您的问题...',
+                      border: OutlineInputBorder(
+                        borderRadius: BorderRadius.circular(24),
+                      ),
+                      contentPadding: EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+                    ),
+                    onSubmitted: (_) => _sendMessage(),
+                  ),
+                ),
+                SizedBox(width: 8),
+                // 发送按钮
+                IconButton(
+                  icon: Icon(Icons.send, color: Color(0xFF333333)),
+                  onPressed: _sendMessage,
+                ),
+              ],
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+  
+  Widget _buildQuickButton(String text) {
+    return Padding(
+      padding: EdgeInsets.only(right: 8),
+      child: OutlinedButton(
+        onPressed: () {
+          _textController.text = text;
+          _sendMessage();
+        },
+        style: OutlinedButton.styleFrom(
+          side: BorderSide(color: Color(0xFF333333)),
+        ),
+        child: Text(text, style: TextStyle(color: Color(0xFF333333))),
+      ),
+    );
+  }
+  
+  Widget _buildMessageBubble(Message message) {
+    return Align(
+      alignment: message.isUser ? Alignment.centerRight : Alignment.centerLeft,
+      child: Container(
+        margin: EdgeInsets.only(bottom: 12),
+        padding: EdgeInsets.symmetric(horizontal: 16, vertical: 12),
+        constraints: BoxConstraints(maxWidth: MediaQuery.of(context).size.width * 0.7),
+        decoration: BoxDecoration(
+          color: message.isUser ? Color(0xFF333333) : Color(0xFFF0F0F0),
+          borderRadius: BorderRadius.circular(16),
+        ),
+        child: Text(
+          message.text,
+          style: TextStyle(
+            color: message.isUser ? Colors.white : Color(0xFF333333),
+            fontSize: 16,
+          ),
+        ),
+      ),
+    );
+  }
+}

lib/screens/booking_screen.dart

@@ -0,0 +1,164 @@
+import 'package:flutter/material.dart';
+import '../models/hospital.dart';
+import '../services/medical_service.dart';
+import 'payment_screen.dart';
+
+class BookingScreen extends StatefulWidget {
+  final Hospital hospital;
+  final Doctor doctor;
+  
+  const BookingScreen({
+    required this.hospital,
+    required this.doctor,
+  });
+  
+  @override
+  State<BookingScreen> createState() => _BookingScreenState();
+}
+
+class _BookingScreenState extends State<BookingScreen> {
+  DateTime _selectedDate = DateTime.now().add(Duration(days: 1));
+  String _selectedTime = '上午';
+  final _nameController = TextEditingController();
+  final _phoneController = TextEditingController();
+  
+  void _submit() {
+    if (_nameController.text.isEmpty || _phoneController.text.isEmpty) {
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text('请填写就诊人信息')),
+      );
+      return;
+    }
+    
+    final appointment = Appointment(
+      id: DateTime.now().toString(),
+      hospitalName: widget.hospital.name,
+      doctorName: widget.doctor.name,
+      department: widget.doctor.department,
+      time: _selectedDate,
+      status: '待支付',
+      fee: widget.doctor.fee,
+    );
+    
+    MedicalService.addAppointment(appointment);
+    
+    Navigator.pushReplacement(
+      context,
+      MaterialPageRoute(builder: (_) => PaymentScreen(appointment: appointment)),
+    );
+  }
+  
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: Text('预约挂号')),
+      body: SingleChildScrollView(
+        padding: EdgeInsets.all(16),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Text('医生信息', style: TextStyle(fontSize: 18, fontWeight: FontWeight.w500)),
+            SizedBox(height: 12),
+            Card(
+              child: Padding(
+                padding: EdgeInsets.all(16),
+                child: Column(
+                  children: [
+                    _buildRow('医院', widget.hospital.name),
+                    _buildRow('科室', widget.doctor.department),
+                    _buildRow('医生', widget.doctor.name),
+                    _buildRow('职称', widget.doctor.title),
+                    _buildRow('挂号费', '¥${widget.doctor.fee}'),
+                  ],
+                ),
+              ),
+            ),
+            SizedBox(height: 24),
+            Text('选择时间', style: TextStyle(fontSize: 18, fontWeight: FontWeight.w500)),
+            SizedBox(height: 12),
+            Row(
+              children: [
+                Expanded(
+                  child: Text('${_selectedDate.month}月${_selectedDate.day}日'),
+                ),
+                TextButton(
+                  onPressed: () async {
+                    final date = await showDatePicker(
+                      context: context,
+                      initialDate: _selectedDate,
+                      firstDate: DateTime.now(),
+                      lastDate: DateTime.now().add(Duration(days: 30)),
+                    );
+                    if (date != null) setState(() => _selectedDate = date);
+                  },
+                  child: Text('选择日期'),
+                ),
+              ],
+            ),
+            Row(
+              children: [
+                Radio(
+                  value: '上午',
+                  groupValue: _selectedTime,
+                  onChanged: (val) => setState(() => _selectedTime = val!),
+                ),
+                Text('上午'),
+                SizedBox(width: 20),
+                Radio(
+                  value: '下午',
+                  groupValue: _selectedTime,
+                  onChanged: (val) => setState(() => _selectedTime = val!),
+                ),
+                Text('下午'),
+              ],
+            ),
+            SizedBox(height: 24),
+            Text('就诊人信息', style: TextStyle(fontSize: 18, fontWeight: FontWeight.w500)),
+            SizedBox(height: 12),
+            TextField(
+              controller: _nameController,
+              decoration: InputDecoration(
+                labelText: '姓名',
+                border: OutlineInputBorder(),
+              ),
+            ),
+            SizedBox(height: 12),
+            TextField(
+              controller: _phoneController,
+              keyboardType: TextInputType.phone,
+              decoration: InputDecoration(
+                labelText: '手机号',
+                border: OutlineInputBorder(),
+              ),
+            ),
+            SizedBox(height: 40),
+            SizedBox(
+              width: double.infinity,
+              height: 50,
+              child: ElevatedButton(
+                onPressed: _submit,
+                style: ElevatedButton.styleFrom(
+                  backgroundColor: Color(0xFF333333),
+                  foregroundColor: Colors.white,
+                ),
+                child: Text('提交订单', style: TextStyle(fontSize: 16)),
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+  
+  Widget _buildRow(String label, String value) {
+    return Padding(
+      padding: EdgeInsets.symmetric(vertical: 4),
+      child: Row(
+        children: [
+          Text('$label：', style: TextStyle(color: Colors.grey)),
+          Text(value),
+        ],
+      ),
+    );
+  }
+}

lib/screens/create_activity_screen.dart

@@ -0,0 +1,124 @@
+import 'package:flutter/material.dart';
+import '../models/activity.dart';
+import '../services/activity_service.dart';
+
+class CreateActivityScreen extends StatefulWidget {
+  @override
+  State<CreateActivityScreen> createState() => _CreateActivityScreenState();
+}
+
+class _CreateActivityScreenState extends State<CreateActivityScreen> {
+  final _titleController = TextEditingController();
+  final _locationController = TextEditingController();
+  final _descController = TextEditingController();
+  String _selectedCategory = '太极';
+  int _maxParticipants = 10;
+  DateTime _selectedDate = DateTime.now().add(Duration(days: 1));
+  TimeOfDay _selectedTime = TimeOfDay(hour: 9, minute: 0);
+  
+  void _submit() {
+    if (_titleController.text.isEmpty || _locationController.text.isEmpty) {
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text('请填写完整信息')),
+      );
+      return;
+    }
+    
+    final activity = Activity(
+      id: DateTime.now().toString(),
+      title: _titleController.text,
+      category: _selectedCategory,
+      time: DateTime(
+        _selectedDate.year,
+        _selectedDate.month,
+        _selectedDate.day,
+        _selectedTime.hour,
+        _selectedTime.minute,
+      ),
+      location: _locationController.text,
+      maxParticipants: _maxParticipants,
+      creatorName: '我',
+      description: _descController.text,
+    );
+    
+    ActivityService.addActivity(activity);
+    
+    Navigator.pop(context);
+    ScaffoldMessenger.of(context).showSnackBar(
+      SnackBar(content: Text('活动创建成功')),
+    );
+  }
+  
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: Text('发起活动')),
+      body: ListView(
+        padding: EdgeInsets.all(16),
+        children: [
+          TextField(
+            controller: _titleController,
+            decoration: InputDecoration(
+              labelText: '活动名称',
+              border: OutlineInputBorder(),
+            ),
+          ),
+          SizedBox(height: 16),
+          DropdownButtonFormField<String>(
+            value: _selectedCategory,
+            decoration: InputDecoration(
+              labelText: '活动类型',
+              border: OutlineInputBorder(),
+            ),
+            items: ActivityService.categories
+                .skip(1)
+                .map((c) => DropdownMenuItem(value: c, child: Text(c)))
+                .toList(),
+            onChanged: (val) => setState(() => _selectedCategory = val!),
+          ),
+          SizedBox(height: 16),
+          TextField(
+            controller: _locationController,
+            decoration: InputDecoration(
+              labelText: '活动地点',
+              border: OutlineInputBorder(),
+            ),
+          ),
+          SizedBox(height: 16),
+          ListTile(
+            title: Text('人数限制'),
+            trailing: DropdownButton<int>(
+              value: _maxParticipants,
+              items: [5, 8, 10, 12, 15]
+                  .map((n) => DropdownMenuItem(value: n, child: Text('$n 人')))
+                  .toList(),
+              onChanged: (val) => setState(() => _maxParticipants = val!),
+            ),
+            contentPadding: EdgeInsets.zero,
+          ),
+          SizedBox(height: 16),
+          TextField(
+            controller: _descController,
+            maxLines: 3,
+            decoration: InputDecoration(
+              labelText: '活动描述（选填）',
+              border: OutlineInputBorder(),
+            ),
+          ),
+          SizedBox(height: 40),
+          SizedBox(
+            height: 50,
+            child: ElevatedButton(
+              onPressed: _submit,
+              style: ElevatedButton.styleFrom(
+                backgroundColor: Color(0xFF333333),
+                foregroundColor: Colors.white,
+              ),
+              child: Text('发布活动', style: TextStyle(fontSize: 16)),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}

lib/screens/department_screen.dart

@@ -0,0 +1,50 @@
+import 'package:flutter/material.dart';
+import '../models/hospital.dart';
+import '../services/medical_service.dart';
+import 'doctor_list_screen.dart';
+
+class DepartmentScreen extends StatelessWidget {
+  final Hospital hospital;
+  
+  const DepartmentScreen({required this.hospital});
+  
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: Text('选择科室')),
+      body: GridView.builder(
+        padding: EdgeInsets.all(16),
+        gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
+          crossAxisCount: 3,
+          crossAxisSpacing: 12,
+          mainAxisSpacing: 12,
+        ),
+        itemCount: hospital.departments.length,
+        itemBuilder: (context, index) {
+          final department = hospital.departments[index];
+          return Card(
+            child: InkWell(
+              onTap: () {
+                Navigator.push(
+                  context,
+                  MaterialPageRoute(
+                    builder: (_) => DoctorListScreen(
+                      hospital: hospital,
+                      department: department,
+                    ),
+                  ),
+                );
+              },
+              child: Center(
+                child: Text(
+                  department,
+                  style: TextStyle(fontSize: 16),
+                ),
+              ),
+            ),
+          );
+        },
+      ),
+    );
+  }
+}

lib/screens/doctor_list_screen.dart

@@ -0,0 +1,83 @@
+import 'package:flutter/material.dart';
+import '../models/hospital.dart';
+import '../services/medical_service.dart';
+import 'booking_screen.dart';
+
+class DoctorListScreen extends StatelessWidget {
+  final Hospital hospital;
+  final String department;
+  
+  const DoctorListScreen({
+    required this.hospital,
+    required this.department,
+  });
+  
+  @override
+  Widget build(BuildContext context) {
+    final doctors = MedicalService.getDoctorsByDepartment(department);
+    
+    return Scaffold(
+      appBar: AppBar(title: Text('$department - 选择医生')),
+      body: doctors.isEmpty
+          ? Center(child: Text('暂无医生'))
+          : ListView.builder(
+              padding: EdgeInsets.all(16),
+              itemCount: doctors.length,
+              itemBuilder: (context, index) {
+                final doctor = doctors[index];
+                return Card(
+                  margin: EdgeInsets.only(bottom: 12),
+                  child: InkWell(
+                    onTap: () {
+                      Navigator.push(
+                        context,
+                        MaterialPageRoute(
+                          builder: (_) => BookingScreen(
+                            hospital: hospital,
+                            doctor: doctor,
+                          ),
+                        ),
+                      );
+                    },
+                    child: Padding(
+                      padding: EdgeInsets.all(16),
+                      child: Row(
+                        children: [
+                          CircleAvatar(
+                            radius: 30,
+                            child: Text(doctor.name[0]),
+                          ),
+                          SizedBox(width: 16),
+                          Expanded(
+                            child: Column(
+                              crossAxisAlignment: CrossAxisAlignment.start,
+                              children: [
+                                Text(
+                                  doctor.name,
+                                  style: TextStyle(fontSize: 18, fontWeight: FontWeight.w500),
+                                ),
+                                SizedBox(height: 4),
+                                Text(doctor.title, style: TextStyle(color: Colors.grey)),
+                              ],
+                            ),
+                          ),
+                          Column(
+                            crossAxisAlignment: CrossAxisAlignment.end,
+                            children: [
+                              Text('挂号费', style: TextStyle(fontSize: 12, color: Colors.grey)),
+                              Text(
+                                '¥${doctor.fee}',
+                                style: TextStyle(fontSize: 18, color: Color(0xFF333333)),
+                              ),
+                            ],
+                          ),
+                        ],
+                      ),
+                    ),
+                  ),
+                );
+              },
+            ),
+    );
+  }
+}

lib/screens/home_screen.dart

@@ -0,0 +1,222 @@
+import 'package:flutter/material.dart';
+import '../models/activity.dart';
+import '../services/activity_service.dart';
+import '../utils/constants.dart';
+import 'activity_detail_screen.dart';
+import 'create_activity_screen.dart';
+
+class HomeScreen extends StatefulWidget {
+  const HomeScreen({super.key});
+  @override
+  State<HomeScreen> createState() => _HomeScreenState();
+}
+
+class _HomeScreenState extends State<HomeScreen> {
+  String _selectedCategory = '全部';
+  String _timeFilter = '全部';
+  List<Activity> _activities = [];
+  bool _loading = true;
+
+  @override
+  void initState() {
+    super.initState();
+    _loadActivities();
+  }
+
+  void _loadActivities() {
+    setState(() {
+      _activities = ActivityService.getMockActivities();
+      _loading = false;
+    });
+  }
+
+  List<Activity> get _filteredActivities {
+    return _activities.where((a) {
+      if (_selectedCategory != '全部' && a.category != _selectedCategory) return false;
+      return true;
+    }).toList();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Row(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            const Icon(Icons.location_on, size: 18, color: Color(0xFF1976D2)),
+            const SizedBox(width: 4),
+            const Text('成都', style: TextStyle(fontSize: 16, color: Color(0xFF666666))),
+            const SizedBox(width: 16),
+            Expanded(
+              child: Container(
+                height: 36,
+                decoration: BoxDecoration(
+                  color: const Color(0xFFF5F5F5),
+                  borderRadius: BorderRadius.circular(18),
+                ),
+                child: const Row(
+                  children: [
+                    SizedBox(width: 12),
+                    Icon(Icons.search, size: 20, color: Color(0xFF999999)),
+                    SizedBox(width: 8),
+                    Text('搜索活动', style: TextStyle(fontSize: 14, color: Color(0xFF999999))),
+                  ],
+                ),
+              ),
+            ),
+          ],
+        ),
+      ),
+      body: _loading
+          ? const Center(child: CircularProgressIndicator())
+          : RefreshIndicator(
+              onRefresh: () async => _loadActivities(),
+              child: CustomScrollView(
+                slivers: [
+                  // Category chips
+                  SliverToBoxAdapter(
+                    child: SizedBox(
+                      height: 48,
+                      child: ListView(
+                        scrollDirection: Axis.horizontal,
+                        padding: const EdgeInsets.symmetric(horizontal: 16),
+                        children: AppConstants.activityCategories.map((cat) {
+                          final selected = _selectedCategory == cat;
+                          return Padding(
+                            padding: const EdgeInsets.only(right: 8),
+                            child: ChoiceChip(
+                              label: Text(cat, style: TextStyle(fontSize: 14, color: selected ? Colors.white : const Color(0xFF666666))),
+                              selected: selected,
+                              selectedColor: const Color(0xFF1976D2),
+                              backgroundColor: const Color(0xFFF5F5F5),
+                              onSelected: (_) => setState(() => _selectedCategory = cat),
+                            ),
+                          );
+                        }).toList(),
+                      ),
+                    ),
+                  ),
+                  // Time filter
+                  SliverToBoxAdapter(
+                    child: Padding(
+                      padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+                      child: Row(
+                        children: ['全部', '今天', '明天', '本周'].map((t) {
+                          final selected = _timeFilter == t;
+                          return Padding(
+                            padding: const EdgeInsets.only(right: 12),
+                            child: GestureDetector(
+                              onTap: () => setState(() => _timeFilter = t),
+                              child: Text(t, style: TextStyle(
+                                fontSize: 16,
+                                color: selected ? const Color(0xFF1976D2) : const Color(0xFF999999),
+                                fontWeight: selected ? FontWeight.w600 : FontWeight.normal,
+                              )),
+                            ),
+                          );
+                        }).toList(),
+                      ),
+                    ),
+                  ),
+                  // Activity list
+                  SliverList(
+                    delegate: SliverChildBuilderDelegate(
+                      (ctx, i) => _ActivityCard(
+                        activity: _filteredActivities[i],
+                        onTap: () => Navigator.push(context, MaterialPageRoute(
+                          builder: (_) => ActivityDetailScreen(activity: _filteredActivities[i]),
+                        )),
+                      ),
+                      childCount: _filteredActivities.length,
+                    ),
+                  ),
+                  const SliverToBoxAdapter(child: SizedBox(height: 80)),
+                ],
+              ),
+            ),
+      floatingActionButton: FloatingActionButton.extended(
+        onPressed: () => Navigator.push(context, MaterialPageRoute(builder: (_) => const CreateActivityScreen())),
+        icon: const Icon(Icons.add),
+        label: const Text('发起活动', style: TextStyle(fontSize: 16)),
+        backgroundColor: const Color(0xFF1976D2),
+        foregroundColor: Colors.white,
+      ),
+    );
+  }
+}
+
+class _ActivityCard extends StatelessWidget {
+  final Activity activity;
+  final VoidCallback onTap;
+  const _ActivityCard({required this.activity, required this.onTap});
+
+  String _categoryEmoji(String cat) {
+    const map = {'太极':'🧘','茶话会':'🍵','书法':'✍️','摄影':'📷','舞蹈':'💃','户外徒步':'🥾','手工':'🎨','唱歌':'🎵','棋牌':'♟️','读书':'📚','晨练':'🏃'};
+    return map[cat] ?? '🎯';
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Card(
+      margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 6),
+      child: InkWell(
+        onTap: onTap,
+        borderRadius: BorderRadius.circular(16),
+        child: Padding(
+          padding: const EdgeInsets.all(16),
+          child: Column(
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              Row(
+                children: [
+                  Text(_categoryEmoji(activity.category), style: const TextStyle(fontSize: 24)),
+                  const SizedBox(width: 8),
+                  Expanded(child: Text(activity.title, style: const TextStyle(fontSize: 18, fontWeight: FontWeight.w600), maxLines: 1, overflow: TextOverflow.ellipsis)),
+                ],
+              ),
+              const SizedBox(height: 12),
+              Row(
+                children: [
+                  const Icon(Icons.access_time, size: 16, color: Color(0xFF999999)),
+                  const SizedBox(width: 4),
+                  Text(activity.timeDisplay, style: const TextStyle(fontSize: 16, color: Color(0xFF666666))),
+                  const SizedBox(width: 16),
+                  const Icon(Icons.location_on_outlined, size: 16, color: Color(0xFF999999)),
+                  const SizedBox(width: 4),
+                  Text(activity.distance != null ? '距你${activity.distance}km' : '', style: const TextStyle(fontSize: 16, color: Color(0xFF666666))),
+                ],
+              ),
+              const SizedBox(height: 12),
+              Row(
+                children: [
+                  Expanded(
+                    child: Text(
+                      '已报名 ${activity.currentParticipants}/${activity.maxParticipants}人',
+                      style: TextStyle(
+                        fontSize: 16,
+                        color: activity.isFull ? const Color(0xFFF44336) : const Color(0xFF4CAF50),
+                        fontWeight: FontWeight.w500,
+                      ),
+                    ),
+                  ),
+                  SizedBox(
+                    height: 40,
+                    child: ElevatedButton(
+                      onPressed: activity.isFull ? null : () {},
+                      style: ElevatedButton.styleFrom(
+                        minimumSize: const Size(80, 40),
+                        padding: const EdgeInsets.symmetric(horizontal: 20),
+                      ),
+                      child: Text(activity.isFull ? '已满员' : '报名', style: const TextStyle(fontSize: 16)),
+                    ),
+                  ),
+                ],
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}

lib/screens/hospital_list_screen.dart

@@ -0,0 +1,63 @@
+import 'package:flutter/material.dart';
+import '../models/hospital.dart';
+import '../services/medical_service.dart';
+import 'department_screen.dart';
+
+class HospitalListScreen extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: Text('在线挂号')),
+      body: ListView.builder(
+        padding: EdgeInsets.all(16),
+        itemCount: MedicalService.mockHospitals.length,
+        itemBuilder: (context, index) {
+          final hospital = MedicalService.mockHospitals[index];
+          return Card(
+            margin: EdgeInsets.only(bottom: 12),
+            child: InkWell(
+              onTap: () {
+                Navigator.push(
+                  context,
+                  MaterialPageRoute(
+                    builder: (_) => DepartmentScreen(hospital: hospital),
+                  ),
+                );
+              },
+              child: Padding(
+                padding: EdgeInsets.all(16),
+                child: Column(
+                  crossAxisAlignment: CrossAxisAlignment.start,
+                  children: [
+                    Text(
+                      hospital.name,
+                      style: TextStyle(fontSize: 18, fontWeight: FontWeight.w500),
+                    ),
+                    SizedBox(height: 8),
+                    Row(
+                      children: [
+                        Icon(Icons.location_on, size: 16, color: Colors.grey),
+                        SizedBox(width: 4),
+                        Text(hospital.address, style: TextStyle(color: Colors.grey)),
+                      ],
+                    ),
+                    SizedBox(height: 8),
+                    Wrap(
+                      spacing: 8,
+                      children: hospital.departments
+                          .map((d) => Chip(
+                                label: Text(d, style: TextStyle(fontSize: 12)),
+                                padding: EdgeInsets.zero,
+                              ))
+                          .toList(),
+                    ),
+                  ],
+                ),
+              ),
+            ),
+          );
+        },
+      ),
+    );
+  }
+}

lib/screens/login_screen.dart

@@ -0,0 +1,96 @@
+import 'package:flutter/material.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+import 'profile_setup_screen.dart';
+import 'activity_list_screen.dart';
+
+class LoginScreen extends StatefulWidget {
+  const LoginScreen({super.key});
+  @override
+  State<LoginScreen> createState() => _LoginScreenState();
+}
+
+class _LoginScreenState extends State<LoginScreen> {
+  final _phoneController = TextEditingController();
+  final _codeController = TextEditingController();
+  bool _codeSent = false;
+
+  void _sendCode() {
+    if (_phoneController.text.length == 11) {
+      setState(() => _codeSent = true);
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text('验证码已发送（测试码：123456）')),
+      );
+    }
+  }
+
+  void _login() async {
+    if (_codeController.text == '123456') {
+      final prefs = await SharedPreferences.getInstance();
+      await prefs.setString('auth_token', 'mock_token_${DateTime.now().millisecondsSinceEpoch}');
+      await prefs.setString('phone', _phoneController.text);
+      final isNewUser = prefs.getString('user_nickname') == null;
+      if (mounted) {
+        Navigator.pushReplacement(
+          context,
+          MaterialPageRoute(builder: (_) => isNewUser ? ProfileSetupScreen() : ActivityListScreen()),
+        );
+      }
+    } else {
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text('验证码错误')),
+      );
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      backgroundColor: const Color(0xFFFFF8F0),
+      appBar: AppBar(title: Text('登录 / 注册')),
+      body: Padding(
+        padding: EdgeInsets.all(24),
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Text('欢迎使用伴享', style: TextStyle(fontSize: 28, fontWeight: FontWeight.w300)),
+            SizedBox(height: 60),
+            TextField(
+              controller: _phoneController,
+              keyboardType: TextInputType.phone,
+              maxLength: 11,
+              decoration: InputDecoration(
+                labelText: '手机号',
+                border: OutlineInputBorder(),
+              ),
+            ),
+            SizedBox(height: 20),
+            if (_codeSent) ...[
+              TextField(
+                controller: _codeController,
+                keyboardType: TextInputType.number,
+                maxLength: 6,
+                decoration: InputDecoration(
+                  labelText: '验证码',
+                  border: OutlineInputBorder(),
+                ),
+              ),
+              SizedBox(height: 20),
+            ],
+            SizedBox(
+              width: double.infinity,
+              height: 50,
+              child: ElevatedButton(
+                onPressed: _codeSent ? _login : _sendCode,
+                style: ElevatedButton.styleFrom(
+                  backgroundColor: Color(0xFF333333),
+                  foregroundColor: Colors.white,
+                ),
+                child: Text(_codeSent ? '登录' : '获取验证码', style: TextStyle(fontSize: 16)),
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/screens/main_screen.dart

@@ -0,0 +1,42 @@
+import 'package:flutter/material.dart';
+import 'home_screen.dart';
+import 'services_screen.dart';
+import 'ai_chat_screen.dart';
+import 'messages_screen.dart';
+import 'profile_screen.dart';
+
+class MainScreen extends StatefulWidget {
+  const MainScreen({super.key});
+  @override
+  State<MainScreen> createState() => _MainScreenState();
+}
+
+class _MainScreenState extends State<MainScreen> {
+  int _currentIndex = 0;
+  
+  final _screens = const [
+    HomeScreen(),
+    ServicesScreen(),
+    AiChatScreen(),
+    MessagesScreen(),
+    ProfileScreen(),
+  ];
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: IndexedStack(index: _currentIndex, children: _screens),
+      bottomNavigationBar: BottomNavigationBar(
+        currentIndex: _currentIndex,
+        onTap: (i) => setState(() => _currentIndex = i),
+        items: const [
+          BottomNavigationBarItem(icon: Icon(Icons.home_outlined), activeIcon: Icon(Icons.home), label: '首页'),
+          BottomNavigationBarItem(icon: Icon(Icons.grid_view_outlined), activeIcon: Icon(Icons.grid_view), label: '服务'),
+          BottomNavigationBarItem(icon: Icon(Icons.smart_toy_outlined), activeIcon: Icon(Icons.smart_toy), label: 'AI管家'),
+          BottomNavigationBarItem(icon: Icon(Icons.message_outlined), activeIcon: Icon(Icons.message), label: '消息'),
+          BottomNavigationBarItem(icon: Icon(Icons.person_outline), activeIcon: Icon(Icons.person), label: '我的'),
+        ],
+      ),
+    );
+  }
+}

lib/screens/medical_screen.dart

@@ -0,0 +1,236 @@
+import 'package:flutter/material.dart';
+
+class MedicalScreen extends StatelessWidget {
+  const MedicalScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: const Text('医疗健康')),
+      body: SingleChildScrollView(
+        padding: const EdgeInsets.all(20),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            // Hospital selection
+            const Text('选择医院', style: TextStyle(fontSize: 20, fontWeight: FontWeight.w600)),
+            const SizedBox(height: 12),
+            _hospitalCard(context, '四川大学华西医院', '三甲', '距您5.2km', '028-85422114'),
+            _hospitalCard(context, '四川省人民医院', '三甲', '距您3.8km', '028-87394243'),
+            _hospitalCard(context, '成都市第一人民医院', '三甲', '距您2.1km', '028-86660016'),
+            const SizedBox(height: 24),
+            // Departments
+            const Text('常见科室', style: TextStyle(fontSize: 20, fontWeight: FontWeight.w600)),
+            const SizedBox(height: 12),
+            Wrap(
+              spacing: 12, runSpacing: 12,
+              children: ['心内科', '骨科', '消化内科', '神经内科', '内分泌科', '眼科', '耳鼻喉科', '皮肤科'].map((dept) {
+                return GestureDetector(
+                  onTap: () => _showDoctors(context, dept),
+                  child: Container(
+                    width: (MediaQuery.of(context).size.width - 64) / 4,
+                    height: 64,
+                    decoration: BoxDecoration(
+                      color: const Color(0xFFF5F5F5),
+                      borderRadius: BorderRadius.circular(12),
+                    ),
+                    child: Center(child: Text(dept, style: const TextStyle(fontSize: 14), textAlign: TextAlign.center)),
+                  ),
+                );
+              }).toList(),
+            ),
+            const SizedBox(height: 24),
+            // Online consultation
+            const Text('在线问诊', style: TextStyle(fontSize: 20, fontWeight: FontWeight.w600)),
+            const SizedBox(height: 12),
+            Card(
+              child: Padding(
+                padding: const EdgeInsets.all(16),
+                child: Column(
+                  crossAxisAlignment: CrossAxisAlignment.start,
+                  children: [
+                    const Row(
+                      children: [
+                        Icon(Icons.chat, color: Color(0xFF4CAF50)),
+                        SizedBox(width: 8),
+                        Text('图文问诊', style: TextStyle(fontSize: 18, fontWeight: FontWeight.w600)),
+                        Spacer(),
+                        Text('¥19.9/次', style: TextStyle(fontSize: 16, color: Color(0xFFF44336), fontWeight: FontWeight.w600)),
+                      ],
+                    ),
+                    const SizedBox(height: 8),
+                    const Text('描述症状，上传照片，专业医生2小时内回复', style: TextStyle(fontSize: 14, color: Color(0xFF999999))),
+                    const SizedBox(height: 12),
+                    SizedBox(
+                      width: double.infinity, height: 44,
+                      child: ElevatedButton(
+                        onPressed: () => _showConsultationDialog(context),
+                        style: ElevatedButton.styleFrom(backgroundColor: const Color(0xFF4CAF50)),
+                        child: const Text('开始问诊'),
+                      ),
+                    ),
+                  ],
+                ),
+              ),
+            ),
+            const SizedBox(height: 12),
+            const Center(
+              child: Text('⚠️ 仅供参考，不构成医疗建议', style: TextStyle(fontSize: 12, color: Color(0xFF999999))),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _hospitalCard(BuildContext context, String name, String level, String distance, String phone) {
+    return Card(
+      margin: const EdgeInsets.only(bottom: 8),
+      child: ListTile(
+        onTap: () => _showDoctors(context, '心内科'),
+        leading: CircleAvatar(backgroundColor: const Color(0xFFE8F5E9), child: Text(level, style: const TextStyle(fontSize: 12, color: Color(0xFF4CAF50)))),
+        title: Text(name, style: const TextStyle(fontSize: 16, fontWeight: FontWeight.w600)),
+        subtitle: Text('$distance  📞 $phone', style: const TextStyle(fontSize: 13, color: Color(0xFF999999))),
+        trailing: const Icon(Icons.chevron_right),
+      ),
+    );
+  }
+
+  void _showDoctors(BuildContext context, String dept) {
+    showModalBottomSheet(
+      context: context,
+      isScrollControlled: true,
+      shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
+      builder: (ctx) => DraggableScrollableSheet(
+        initialChildSize: 0.7, minChildSize: 0.4, maxChildSize: 0.9,
+        expand: false,
+        builder: (_, controller) => Column(
+          children: [
+            Padding(
+              padding: const EdgeInsets.all(16),
+              child: Text('$dept - 医生列表', style: const TextStyle(fontSize: 20, fontWeight: FontWeight.bold)),
+            ),
+            Expanded(
+              child: ListView(
+                controller: controller,
+                padding: const EdgeInsets.symmetric(horizontal: 16),
+                children: [
+                  _doctorTile(ctx, '王教授', '主任医师', 4.9, '高血压、冠心病', '50'),
+                  _doctorTile(ctx, '李医生', '副主任医师', 4.7, '心律失常、心力衰竭', '35'),
+                  _doctorTile(ctx, '张医生', '主治医师', 4.5, '心肌病、心脏瓣膜病', '25'),
+                ],
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _doctorTile(BuildContext context, String name, String title, double rating, String specialty, String fee) {
+    return Card(
+      margin: const EdgeInsets.only(bottom: 12),
+      child: Padding(
+        padding: const EdgeInsets.all(16),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Row(
+              children: [
+                const CircleAvatar(radius: 24, backgroundColor: Color(0xFFE3F2FD), child: Icon(Icons.person, color: Color(0xFF1976D2))),
+                const SizedBox(width: 12),
+                Column(
+                  crossAxisAlignment: CrossAxisAlignment.start,
+                  children: [
+                    Row(children: [
+                      Text(name, style: const TextStyle(fontSize: 18, fontWeight: FontWeight.w600)),
+                      const SizedBox(width: 8),
+                      Text(title, style: const TextStyle(fontSize: 14, color: Color(0xFF999999))),
+                    ]),
+                    Row(children: [
+                      const Icon(Icons.star, size: 16, color: Color(0xFFFFC107)),
+                      Text(' $rating', style: const TextStyle(fontSize: 14, color: Color(0xFF666666))),
+                    ]),
+                  ],
+                ),
+                const Spacer(),
+                Text('¥$fee', style: const TextStyle(fontSize: 18, color: Color(0xFFF44336), fontWeight: FontWeight.w600)),
+              ],
+            ),
+            const SizedBox(height: 8),
+            Text('擅长：$specialty', style: const TextStyle(fontSize: 14, color: Color(0xFF666666))),
+            const SizedBox(height: 12),
+            Row(
+              children: [
+                _slotChip('明天 9:00'),
+                const SizedBox(width: 8),
+                _slotChip('后天 14:00'),
+                const SizedBox(width: 8),
+                _slotChip('周五 9:00'),
+              ],
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _slotChip(String text) {
+    return Container(
+      padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 6),
+      decoration: BoxDecoration(
+        color: const Color(0xFFE3F2FD),
+        borderRadius: BorderRadius.circular(8),
+      ),
+      child: Text(text, style: const TextStyle(fontSize: 13, color: Color(0xFF1976D2))),
+    );
+  }
+
+  void _showConsultationDialog(BuildContext context) {
+    showDialog(
+      context: context,
+      builder: (ctx) => AlertDialog(
+        title: const Text('在线问诊'),
+        content: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            const TextField(
+              maxLines: 3,
+              decoration: InputDecoration(hintText: '请描述您的症状...', hintStyle: TextStyle(fontSize: 16)),
+            ),
+            const SizedBox(height: 12),
+            const Text('支持上传最多3张图片', style: TextStyle(fontSize: 14, color: Color(0xFF999999))),
+            const SizedBox(height: 12),
+            Row(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: List.generate(3, (i) => Padding(
+                padding: const EdgeInsets.symmetric(horizontal: 4),
+                child: Container(
+                  width: 60, height: 60,
+                  decoration: BoxDecoration(
+                    color: const Color(0xFFF5F5F5),
+                    borderRadius: BorderRadius.circular(8),
+                    border: Border.all(color: const Color(0xFFDDDDDD)),
+                  ),
+                  child: const Icon(Icons.add_photo_alternate, color: Color(0xFF999999)),
+                ),
+              )),
+            ),
+          ],
+        ),
+        actions: [
+          TextButton(onPressed: () => Navigator.pop(ctx), child: const Text('取消')),
+          ElevatedButton(
+            onPressed: () {
+              Navigator.pop(ctx);
+              ScaffoldMessenger.of(context).showSnackBar(
+                const SnackBar(content: Text('问诊已提交，医生将在2小时内回复', style: TextStyle(fontSize: 16)), backgroundColor: Color(0xFF4CAF50)),
+              );
+            },
+            child: const Text('支付 ¥19.9'),
+          ),
+        ],
+      ),
+    );
+  }
+}

lib/screens/messages_screen.dart

@@ -0,0 +1,35 @@
+import 'package:flutter/material.dart';
+
+class MessagesScreen extends StatelessWidget {
+  const MessagesScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: const Text('消息')),
+      body: ListView(
+        padding: const EdgeInsets.all(16),
+        children: [
+          _notificationTile(Icons.event, '活动提醒', '您报名的「太极晨练」明天7:00开始', '10分钟前', const Color(0xFF1976D2)),
+          _notificationTile(Icons.check_circle, '报名成功', '您已成功报名「周末茶话会」', '1小时前', const Color(0xFF4CAF50)),
+          _notificationTile(Icons.payment, '支付通知', '挂号费¥50已支付成功', '昨天', const Color(0xFFFF9800)),
+          _notificationTile(Icons.chat, '问诊回复', '王医生已回复您的问诊', '昨天', const Color(0xFF9C27B0)),
+          _notificationTile(Icons.campaign, '系统通知', '欢迎使用伴享！完善资料赢取积分', '2天前', const Color(0xFF607D8B)),
+        ],
+      ),
+    );
+  }
+
+  Widget _notificationTile(IconData icon, String title, String content, String time, Color color) {
+    return Card(
+      margin: const EdgeInsets.only(bottom: 8),
+      child: ListTile(
+        leading: CircleAvatar(backgroundColor: color.withOpacity(0.1), child: Icon(icon, color: color)),
+        title: Text(title, style: const TextStyle(fontSize: 16, fontWeight: FontWeight.w600)),
+        subtitle: Text(content, style: const TextStyle(fontSize: 14, color: Color(0xFF666666))),
+        trailing: Text(time, style: const TextStyle(fontSize: 12, color: Color(0xFF999999))),
+        contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+      ),
+    );
+  }
+}

lib/screens/order_list_screen.dart

@@ -0,0 +1,137 @@
+import 'package:flutter/material.dart';
+import '../models/hospital.dart';
+import '../services/medical_service.dart';
+import 'payment_screen.dart';
+
+class OrderListScreen extends StatefulWidget {
+  @override
+  State<OrderListScreen> createState() => _OrderListScreenState();
+}
+
+class _OrderListScreenState extends State<OrderListScreen> {
+  @override
+  Widget build(BuildContext context) {
+    final orders = MedicalService.appointments;
+    
+    return Scaffold(
+      appBar: AppBar(title: Text('我的订单')),
+      body: orders.isEmpty
+          ? Center(
+              child: Column(
+                mainAxisAlignment: MainAxisAlignment.center,
+                children: [
+                  Icon(Icons.inbox, size: 80, color: Colors.grey[300]),
+                  SizedBox(height: 16),
+                  Text('暂无订单', style: TextStyle(color: Colors.grey)),
+                ],
+              ),
+            )
+          : ListView.builder(
+              padding: EdgeInsets.all(16),
+              itemCount: orders.length,
+              itemBuilder: (context, index) {
+                final order = orders[index];
+                return Card(
+                  margin: EdgeInsets.only(bottom: 12),
+                  child: Padding(
+                    padding: EdgeInsets.all(16),
+                    child: Column(
+                      crossAxisAlignment: CrossAxisAlignment.start,
+                      children: [
+                        Row(
+                          mainAxisAlignment: MainAxisAlignment.spaceBetween,
+                          children: [
+                            Text(
+                              order.hospitalName,
+                              style: TextStyle(fontSize: 16, fontWeight: FontWeight.w500),
+                            ),
+                            _buildStatusChip(order.status),
+                          ],
+                        ),
+                        SizedBox(height: 12),
+                        _buildInfoRow(Icons.medical_services, '${order.department} - ${order.doctorName}'),
+                        _buildInfoRow(
+                          Icons.access_time,
+                          '${order.time.month}月${order.time.day}日',
+                        ),
+                        _buildInfoRow(Icons.attach_money, '¥${order.fee}'),
+                        SizedBox(height: 12),
+                        if (order.status == '待支付')
+                          Row(
+                            mainAxisAlignment: MainAxisAlignment.end,
+                            children: [
+                              TextButton(
+                                onPressed: () {
+                                  setState(() {
+                                    order.status = '已取消';
+                                  });
+                                },
+                                child: Text('取消订单'),
+                              ),
+                              SizedBox(width: 8),
+                              ElevatedButton(
+                                onPressed: () {
+                                  Navigator.push(
+                                    context,
+                                    MaterialPageRoute(
+                                      builder: (_) => PaymentScreen(appointment: order),
+                                    ),
+                                  ).then((_) => setState(() {}));
+                                },
+                                style: ElevatedButton.styleFrom(
+                                  backgroundColor: Color(0xFF333333),
+                                  foregroundColor: Colors.white,
+                                ),
+                                child: Text('去支付'),
+                              ),
+                            ],
+                          ),
+                      ],
+                    ),
+                  ),
+                );
+              },
+            ),
+    );
+  }
+  
+  Widget _buildStatusChip(String status) {
+    Color color;
+    switch (status) {
+      case '待支付':
+        color = Colors.orange;
+        break;
+      case '已支付':
+      case '待就诊':
+        color = Colors.green;
+        break;
+      case '已完成':
+        color = Colors.blue;
+        break;
+      case '已取消':
+        color = Colors.grey;
+        break;
+      default:
+        color = Colors.grey;
+    }
+    
+    return Chip(
+      label: Text(status, style: TextStyle(color: Colors.white, fontSize: 12)),
+      backgroundColor: color,
+      padding: EdgeInsets.zero,
+    );
+  }
+  
+  Widget _buildInfoRow(IconData icon, String text) {
+    return Padding(
+      padding: EdgeInsets.symmetric(vertical: 4),
+      child: Row(
+        children: [
+          Icon(icon, size: 16, color: Colors.grey),
+          SizedBox(width: 8),
+          Text(text, style: TextStyle(color: Colors.grey[700])),
+        ],
+      ),
+    );
+  }
+}

lib/screens/payment_screen.dart

@@ -0,0 +1,192 @@
+import 'package:flutter/material.dart';
+import '../models/hospital.dart';
+
+class PaymentScreen extends StatefulWidget {
+  final Appointment appointment;
+  
+  const PaymentScreen({required this.appointment});
+  
+  @override
+  State<PaymentScreen> createState() => _PaymentScreenState();
+}
+
+class _PaymentScreenState extends State<PaymentScreen> {
+  String _selectedMethod = '微信支付';
+  bool _isProcessing = false;
+  
+  void _pay() async {
+    setState(() => _isProcessing = true);
+    
+    // 模拟支付处理
+    await Future.delayed(Duration(seconds: 2));
+    
+    setState(() {
+      _isProcessing = false;
+      widget.appointment.status = '待就诊';
+    });
+    
+    if (mounted) {
+      showDialog(
+        context: context,
+        barrierDismissible: false,
+        builder: (context) => AlertDialog(
+          title: Row(
+            children: [
+              Icon(Icons.check_circle, color: Colors.green, size: 32),
+              SizedBox(width: 12),
+              Text('支付成功'),
+            ],
+          ),
+          content: Text('您的预约已确认，请按时就诊'),
+          actions: [
+            TextButton(
+              onPressed: () {
+                Navigator.pop(context);
+                Navigator.pop(context);
+              },
+              child: Text('确定'),
+            ),
+          ],
+        ),
+      );
+    }
+  }
+  
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: Text('支付')),
+      body: Column(
+        children: [
+          Expanded(
+            child: SingleChildScrollView(
+              child: Column(
+                children: [
+                  // 订单信息
+                  Container(
+                    padding: EdgeInsets.all(16),
+                    color: Colors.grey[50],
+                    child: Column(
+                      crossAxisAlignment: CrossAxisAlignment.start,
+                      children: [
+                        Text('订单信息', style: TextStyle(fontSize: 16, fontWeight: FontWeight.w500)),
+                        SizedBox(height: 12),
+                        _buildRow('医院', widget.appointment.hospitalName),
+                        _buildRow('科室', widget.appointment.department),
+                        _buildRow('医生', widget.appointment.doctorName),
+                        _buildRow(
+                          '就诊时间',
+                          '${widget.appointment.time.month}月${widget.appointment.time.day}日',
+                        ),
+                        Divider(height: 24),
+                        Row(
+                          mainAxisAlignment: MainAxisAlignment.spaceBetween,
+                          children: [
+                            Text('合计金额', style: TextStyle(fontSize: 18, fontWeight: FontWeight.w500)),
+                            Text(
+                              '¥${widget.appointment.fee}',
+                              style: TextStyle(fontSize: 24, color: Colors.red, fontWeight: FontWeight.bold),
+                            ),
+                          ],
+                        ),
+                      ],
+                    ),
+                  ),
+                  SizedBox(height: 20),
+                  // 支付方式
+                  Padding(
+                    padding: EdgeInsets.symmetric(horizontal: 16),
+                    child: Column(
+                      crossAxisAlignment: CrossAxisAlignment.start,
+                      children: [
+                        Text('支付方式', style: TextStyle(fontSize: 16, fontWeight: FontWeight.w500)),
+                        SizedBox(height: 12),
+                        _buildPaymentMethod('微信支付', Icons.wechat),
+                        _buildPaymentMethod('支付宝', Icons.account_balance_wallet),
+                      ],
+                    ),
+                  ),
+                ],
+              ),
+            ),
+          ),
+          // 支付按钮
+          Container(
+            padding: EdgeInsets.all(16),
+            decoration: BoxDecoration(
+              color: Colors.white,
+              boxShadow: [
+                BoxShadow(
+                  color: Colors.black12,
+                  blurRadius: 4,
+                  offset: Offset(0, -2),
+                ),
+              ],
+            ),
+            child: SizedBox(
+              width: double.infinity,
+              height: 50,
+              child: ElevatedButton(
+                onPressed: _isProcessing ? null : _pay,
+                style: ElevatedButton.styleFrom(
+                  backgroundColor: Color(0xFF333333),
+                  foregroundColor: Colors.white,
+                ),
+                child: _isProcessing
+                    ? Row(
+                        mainAxisAlignment: MainAxisAlignment.center,
+                        children: [
+                          SizedBox(
+                            width: 20,
+                            height: 20,
+                            child: CircularProgressIndicator(
+                              color: Colors.white,
+                              strokeWidth: 2,
+                            ),
+                          ),
+                          SizedBox(width: 12),
+                          Text('支付中...'),
+                        ],
+                      )
+                    : Text('确认支付 ¥${widget.appointment.fee}', style: TextStyle(fontSize: 16)),
+              ),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+  
+  Widget _buildRow(String label, String value) {
+    return Padding(
+      padding: EdgeInsets.symmetric(vertical: 4),
+      child: Row(
+        children: [
+          Text('$label：', style: TextStyle(color: Colors.grey)),
+          Text(value),
+        ],
+      ),
+    );
+  }
+  
+  Widget _buildPaymentMethod(String name, IconData icon) {
+    final selected = _selectedMethod == name;
+    return Card(
+      child: InkWell(
+        onTap: () => setState(() => _selectedMethod = name),
+        child: Padding(
+          padding: EdgeInsets.all(16),
+          child: Row(
+            children: [
+              Icon(icon, size: 32, color: selected ? Color(0xFF333333) : Colors.grey),
+              SizedBox(width: 16),
+              Expanded(child: Text(name, style: TextStyle(fontSize: 16))),
+              if (selected)
+                Icon(Icons.check_circle, color: Color(0xFF333333)),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}

lib/screens/profile_screen.dart

@@ -0,0 +1,103 @@
+import 'package:flutter/material.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+class ProfileScreen extends StatefulWidget {
+  @override
+  State<ProfileScreen> createState() => _ProfileScreenState();
+}
+
+class _ProfileScreenState extends State<ProfileScreen> {
+  final _nicknameController = TextEditingController();
+  String? _selectedCity;
+  List<String> _selectedInterests = [];
+
+  final _cities = ['北京', '上海', '广州', '深圳', '成都', '重庆'];
+  final _interests = ['太极', '晨练', '书法', '摄影', '舞蹈', '旅游', '茶艺', '手工', '唱歌', '棋牌'];
+
+  @override
+  void initState() {
+    super.initState();
+    _loadProfile();
+  }
+
+  void _loadProfile() async {
+    final prefs = await SharedPreferences.getInstance();
+    setState(() {
+      _nicknameController.text = prefs.getString('nickname') ?? '';
+      _selectedCity = prefs.getString('city');
+      _selectedInterests = prefs.getStringList('interests') ?? [];
+    });
+  }
+
+  void _save() async {
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.setString('nickname', _nicknameController.text);
+    if (_selectedCity != null) await prefs.setString('city', _selectedCity!);
+    await prefs.setStringList('interests', _selectedInterests);
+    
+    ScaffoldMessenger.of(context).showSnackBar(
+      SnackBar(content: Text('保存成功')),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: Text('个人资料')),
+      body: ListView(
+        padding: EdgeInsets.all(16),
+        children: [
+          TextField(
+            controller: _nicknameController,
+            decoration: InputDecoration(
+              labelText: '昵称',
+              border: OutlineInputBorder(),
+            ),
+          ),
+          SizedBox(height: 20),
+          DropdownButtonFormField<String>(
+            value: _selectedCity,
+            decoration: InputDecoration(
+              labelText: '居住城市',
+              border: OutlineInputBorder(),
+            ),
+            items: _cities.map((city) => DropdownMenuItem(value: city, child: Text(city))).toList(),
+            onChanged: (val) => setState(() => _selectedCity = val),
+          ),
+          SizedBox(height: 20),
+          Text('兴趣爱好（最多5个）', style: TextStyle(fontSize: 16)),
+          SizedBox(height: 10),
+          Wrap(
+            spacing: 8,
+            children: _interests.map((interest) {
+              final selected = _selectedInterests.contains(interest);
+              return FilterChip(
+                label: Text(interest),
+                selected: selected,
+                onSelected: (val) {
+                  setState(() {
+                    if (val && _selectedInterests.length < 5) {
+                      _selectedInterests.add(interest);
+                    } else {
+                      _selectedInterests.remove(interest);
+                    }
+                  });
+                },
+              );
+            }).toList(),
+          ),
+          SizedBox(height: 40),
+          ElevatedButton(
+            onPressed: _save,
+            style: ElevatedButton.styleFrom(
+              backgroundColor: Color(0xFF333333),
+              foregroundColor: Colors.white,
+              padding: EdgeInsets.symmetric(vertical: 16),
+            ),
+            child: Text('保存', style: TextStyle(fontSize: 16)),
+          ),
+        ],
+      ),
+    );
+  }
+}

lib/screens/profile_setup_screen.dart

@@ -0,0 +1,195 @@
+import 'package:flutter/material.dart';
+import '../services/auth_service.dart';
+import '../utils/constants.dart';
+import 'activity_list_screen.dart';
+
+class ProfileSetupScreen extends StatefulWidget {
+  const ProfileSetupScreen({super.key});
+  @override
+  State<ProfileSetupScreen> createState() => _ProfileSetupScreenState();
+}
+
+class _ProfileSetupScreenState extends State<ProfileSetupScreen> {
+  final _pageController = PageController();
+  int _currentStep = 0;
+  final _nicknameController = TextEditingController();
+  String? _gender;
+  int? _birthYear;
+  final Set<String> _selectedInterests = {};
+
+  void _nextStep() {
+    if (_currentStep < 2) {
+      setState(() => _currentStep++);
+      _pageController.animateToPage(_currentStep, duration: const Duration(milliseconds: 300), curve: Curves.easeInOut);
+    } else {
+      _finishSetup();
+    }
+  }
+
+  void _finishSetup() async {
+    await AuthService.updateProfile(
+      nickname: _nicknameController.text.trim().isEmpty ? null : _nicknameController.text.trim(),
+      birthYear: _birthYear,
+      gender: _gender,
+      interests: _selectedInterests.toList(),
+    );
+    if (mounted) {
+      Navigator.pushReplacement(context, MaterialPageRoute(builder: (_) => ActivityListScreen()));
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text('完善资料 (${_currentStep + 1}/3)'),
+        actions: [
+          TextButton(
+            onPressed: _finishSetup,
+            child: const Text('跳过', style: TextStyle(fontSize: 16)),
+          ),
+        ],
+      ),
+      body: PageView(
+        controller: _pageController,
+        physics: const NeverScrollableScrollPhysics(),
+        children: [
+          // Step 1: Nickname
+          Padding(
+            padding: const EdgeInsets.all(32),
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                const Text('给自己取个昵称吧', style: TextStyle(fontSize: 24, fontWeight: FontWeight.bold)),
+                const SizedBox(height: 8),
+                const Text('其他人将通过昵称认识您', style: TextStyle(fontSize: 16, color: Color(0xFF999999))),
+                const SizedBox(height: 32),
+                Center(
+                  child: GestureDetector(
+                    onTap: () {},
+                    child: CircleAvatar(
+                      radius: 50,
+                      backgroundColor: const Color(0xFFE3F2FD),
+                      child: const Icon(Icons.camera_alt, size: 32, color: Color(0xFF1976D2)),
+                    ),
+                  ),
+                ),
+                const SizedBox(height: 8),
+                const Center(child: Text('点击设置头像', style: TextStyle(fontSize: 14, color: Color(0xFF999999)))),
+                const SizedBox(height: 24),
+                TextField(
+                  controller: _nicknameController,
+                  style: const TextStyle(fontSize: 20),
+                  maxLength: 20,
+                  decoration: const InputDecoration(hintText: '输入您的昵称', counterText: ''),
+                ),
+                const Spacer(),
+                SizedBox(width: double.infinity, height: 52, child: ElevatedButton(onPressed: _nextStep, child: const Text('下一步'))),
+              ],
+            ),
+          ),
+          // Step 2: Birth year + Gender
+          Padding(
+            padding: const EdgeInsets.all(32),
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                const Text('基本信息', style: TextStyle(fontSize: 24, fontWeight: FontWeight.bold)),
+                const SizedBox(height: 32),
+                const Text('性别', style: TextStyle(fontSize: 18, fontWeight: FontWeight.w600)),
+                const SizedBox(height: 12),
+                Row(
+                  children: [
+                    Expanded(child: _genderButton('男', 'male', Icons.male)),
+                    const SizedBox(width: 16),
+                    Expanded(child: _genderButton('女', 'female', Icons.female)),
+                  ],
+                ),
+                const SizedBox(height: 32),
+                const Text('出生年份', style: TextStyle(fontSize: 18, fontWeight: FontWeight.w600)),
+                const SizedBox(height: 12),
+                DropdownButtonFormField<int>(
+                  value: _birthYear,
+                  style: const TextStyle(fontSize: 18, color: Color(0xFF333333)),
+                  decoration: const InputDecoration(hintText: '选择出生年份'),
+                  items: List.generate(50, (i) => 1945 + i)
+                      .map((y) => DropdownMenuItem(value: y, child: Text('$y年')))
+                      .toList(),
+                  onChanged: (v) => setState(() => _birthYear = v),
+                ),
+                const Spacer(),
+                SizedBox(width: double.infinity, height: 52, child: ElevatedButton(onPressed: _nextStep, child: const Text('下一步'))),
+              ],
+            ),
+          ),
+          // Step 3: Interests
+          Padding(
+            padding: const EdgeInsets.all(32),
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                const Text('选择您的兴趣', style: TextStyle(fontSize: 24, fontWeight: FontWeight.bold)),
+                const SizedBox(height: 8),
+                const Text('至少选1个，最多5个', style: TextStyle(fontSize: 16, color: Color(0xFF999999))),
+                const SizedBox(height: 24),
+                Wrap(
+                  spacing: 12, runSpacing: 12,
+                  children: AppConstants.interestTags.map((tag) {
+                    final selected = _selectedInterests.contains(tag);
+                    return ChoiceChip(
+                      label: Text(tag, style: TextStyle(fontSize: 16, color: selected ? Colors.white : const Color(0xFF666666))),
+                      selected: selected,
+                      selectedColor: const Color(0xFF1976D2),
+                      backgroundColor: const Color(0xFFF5F5F5),
+                      padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 8),
+                      onSelected: (s) {
+                        setState(() {
+                          if (s && _selectedInterests.length < 5) {
+                            _selectedInterests.add(tag);
+                          } else {
+                            _selectedInterests.remove(tag);
+                          }
+                        });
+                      },
+                    );
+                  }).toList(),
+                ),
+                const Spacer(),
+                SizedBox(
+                  width: double.infinity, height: 52,
+                  child: ElevatedButton(
+                    onPressed: _selectedInterests.isNotEmpty ? _nextStep : null,
+                    child: const Text('完成'),
+                  ),
+                ),
+              ],
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _genderButton(String label, String value, IconData icon) {
+    final selected = _gender == value;
+    return GestureDetector(
+      onTap: () => setState(() => _gender = value),
+      child: Container(
+        height: 64,
+        decoration: BoxDecoration(
+          color: selected ? const Color(0xFFE3F2FD) : Colors.white,
+          borderRadius: BorderRadius.circular(12),
+          border: Border.all(color: selected ? const Color(0xFF1976D2) : const Color(0xFFDDDDDD), width: selected ? 2 : 1),
+        ),
+        child: Row(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Icon(icon, color: selected ? const Color(0xFF1976D2) : const Color(0xFF999999), size: 28),
+            const SizedBox(width: 8),
+            Text(label, style: TextStyle(fontSize: 18, color: selected ? const Color(0xFF1976D2) : const Color(0xFF666666), fontWeight: selected ? FontWeight.w600 : FontWeight.normal)),
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/screens/publish_screen.dart

@@ -0,0 +1,355 @@
+import 'package:flutter/material.dart';
+import 'package:image_picker/image_picker.dart';
+import 'dart:io';
+
+class PublishScreen extends StatefulWidget {
+  @override
+  _PublishScreenState createState() => _PublishScreenState();
+}
+
+class _PublishScreenState extends State<PublishScreen> {
+  final TextEditingController _titleController = TextEditingController();
+  final TextEditingController _contentController = TextEditingController();
+  final TextEditingController _locationController = TextEditingController();
+  final ImagePicker _picker = ImagePicker();
+  
+  List<XFile> _images = [];
+  XFile? _video;
+  bool _isVideo = false;
+
+  Future<void> _pickImages() async {
+    if (_isVideo) {
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text('已选择视频，不能再选择图片')),
+      );
+      return;
+    }
+    
+    if (_images.length >= 9) {
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text('最多只能选择9张图片')),
+      );
+      return;
+    }
+
+    final List<XFile> selectedImages = await _picker.pickMultiImage();
+    
+    if (selectedImages.isNotEmpty) {
+      setState(() {
+        int availableSlots = 9 - _images.length;
+        _images.addAll(selectedImages.take(availableSlots));
+      });
+    }
+  }
+
+  Future<void> _pickVideo() async {
+    if (_images.isNotEmpty) {
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text('已选择图片，不能再选择视频')),
+      );
+      return;
+    }
+
+    final XFile? video = await _picker.pickVideo(source: ImageSource.gallery);
+    
+    if (video != null) {
+      setState(() {
+        _video = video;
+        _isVideo = true;
+      });
+    }
+  }
+
+  void _removeImage(int index) {
+    setState(() {
+      _images.removeAt(index);
+    });
+  }
+
+  void _removeVideo() {
+    setState(() {
+      _video = null;
+      _isVideo = false;
+    });
+  }
+
+  void _publish() {
+    if (_titleController.text.isEmpty) {
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text('请输入标题')),
+      );
+      return;
+    }
+
+    if (_images.isEmpty && _video == null) {
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text('请至少添加一张图片或一个视频')),
+      );
+      return;
+    }
+
+    // TODO: 实际发布逻辑
+    ScaffoldMessenger.of(context).showSnackBar(
+      SnackBar(
+        content: Text('发布成功！'),
+        backgroundColor: Color(0xFFFF6B35),
+      ),
+    );
+    
+    Navigator.pop(context);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      backgroundColor: const Color(0xFFFFF8F0),
+      appBar: AppBar(
+        title: Text('发布活动'),
+        actions: [
+          TextButton(
+            onPressed: _publish,
+            child: Text(
+              '发布',
+              style: TextStyle(
+                color: Color(0xFFFF6B35),
+                fontSize: 16,
+                fontWeight: FontWeight.bold,
+              ),
+            ),
+          ),
+        ],
+      ),
+      body: SingleChildScrollView(
+        child: Padding(
+          padding: EdgeInsets.all(16),
+          child: Column(
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              // 标题输入
+              TextField(
+                controller: _titleController,
+                decoration: InputDecoration(
+                  hintText: '输入活动标题...',
+                  border: InputBorder.none,
+                  hintStyle: TextStyle(
+                    fontSize: 20,
+                    fontWeight: FontWeight.bold,
+                    color: Colors.grey[400],
+                  ),
+                ),
+                style: TextStyle(
+                  fontSize: 20,
+                  fontWeight: FontWeight.bold,
+                ),
+                maxLines: 1,
+              ),
+              Divider(),
+              SizedBox(height: 16),
+              
+              // 内容输入
+              TextField(
+                controller: _contentController,
+                decoration: InputDecoration(
+                  hintText: '分享活动详情...',
+                  border: InputBorder.none,
+                  hintStyle: TextStyle(color: Colors.grey[400]),
+                ),
+                maxLines: 5,
+              ),
+              SizedBox(height: 20),
+              
+              // 图片/视频网格
+              _buildMediaGrid(),
+              SizedBox(height: 20),
+              
+              // 位置输入
+              Row(
+                children: [
+                  Icon(Icons.location_on, color: Color(0xFFFF6B35)),
+                  SizedBox(width: 8),
+                  Expanded(
+                    child: TextField(
+                      controller: _locationController,
+                      decoration: InputDecoration(
+                        hintText: '添加位置',
+                        border: InputBorder.none,
+                        hintStyle: TextStyle(color: Colors.grey[400]),
+                      ),
+                    ),
+                  ),
+                ],
+              ),
+              Divider(),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+
+  Widget _buildMediaGrid() {
+    return Wrap(
+      spacing: 8,
+      runSpacing: 8,
+      children: [
+        // 显示已选择的图片
+        if (!_isVideo)
+          ..._images.asMap().entries.map((entry) {
+            int index = entry.key;
+            XFile image = entry.value;
+            return _buildImageItem(image, index);
+          }).toList(),
+        
+        // 显示已选择的视频
+        if (_isVideo && _video != null)
+          _buildVideoItem(_video!),
+        
+        // 添加按钮
+        if ((_images.length < 9 && !_isVideo) || (_images.isEmpty && !_isVideo))
+          _buildAddButton(),
+      ],
+    );
+  }
+
+  Widget _buildImageItem(XFile image, int index) {
+    return Stack(
+      children: [
+        Container(
+          width: 100,
+          height: 100,
+          decoration: BoxDecoration(
+            borderRadius: BorderRadius.circular(8),
+            image: DecorationImage(
+              image: FileImage(File(image.path)),
+              fit: BoxFit.cover,
+            ),
+          ),
+        ),
+        Positioned(
+          top: 4,
+          right: 4,
+          child: GestureDetector(
+            onTap: () => _removeImage(index),
+            child: Container(
+              width: 24,
+              height: 24,
+              decoration: BoxDecoration(
+                color: Colors.black.withOpacity(0.5),
+                shape: BoxShape.circle,
+              ),
+              child: Icon(
+                Icons.close,
+                color: Colors.white,
+                size: 16,
+              ),
+            ),
+          ),
+        ),
+      ],
+    );
+  }
+
+  Widget _buildVideoItem(XFile video) {
+    return Stack(
+      children: [
+        Container(
+          width: 100,
+          height: 100,
+          decoration: BoxDecoration(
+            borderRadius: BorderRadius.circular(8),
+            color: Colors.black,
+          ),
+          child: Center(
+            child: Icon(
+              Icons.play_circle_outline,
+              color: Colors.white,
+              size: 40,
+            ),
+          ),
+        ),
+        Positioned(
+          top: 4,
+          right: 4,
+          child: GestureDetector(
+            onTap: _removeVideo,
+            child: Container(
+              width: 24,
+              height: 24,
+              decoration: BoxDecoration(
+                color: Colors.black.withOpacity(0.5),
+                shape: BoxShape.circle,
+              ),
+              child: Icon(
+                Icons.close,
+                color: Colors.white,
+                size: 16,
+              ),
+            ),
+          ),
+        ),
+      ],
+    );
+  }
+
+  Widget _buildAddButton() {
+    return GestureDetector(
+      onTap: () {
+        showModalBottomSheet(
+          context: context,
+          builder: (context) {
+            return SafeArea(
+              child: Column(
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  ListTile(
+                    leading: Icon(Icons.image, color: Color(0xFFFF6B35)),
+                    title: Text('选择图片'),
+                    onTap: () {
+                      Navigator.pop(context);
+                      _pickImages();
+                    },
+                  ),
+                  ListTile(
+                    leading: Icon(Icons.videocam, color: Color(0xFFFF6B35)),
+                    title: Text('选择视频'),
+                    onTap: () {
+                      Navigator.pop(context);
+                      _pickVideo();
+                    },
+                  ),
+                ],
+              ),
+            );
+          },
+        );
+      },
+      child: Container(
+        width: 100,
+        height: 100,
+        decoration: BoxDecoration(
+          borderRadius: BorderRadius.circular(8),
+          border: Border.all(color: Colors.grey[300]!),
+        ),
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Icon(Icons.add, size: 32, color: Colors.grey[400]),
+            SizedBox(height: 4),
+            Text(
+              '添加',
+              style: TextStyle(fontSize: 12, color: Colors.grey[400]),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  @override
+  void dispose() {
+    _titleController.dispose();
+    _contentController.dispose();
+    _locationController.dispose();
+    super.dispose();
+  }
+}

lib/screens/services_screen.dart

@@ -0,0 +1,86 @@
+import 'package:flutter/material.dart';
+import 'medical_screen.dart';
+
+class ServicesScreen extends StatelessWidget {
+  const ServicesScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: const Text('生活服务')),
+      body: Padding(
+        padding: const EdgeInsets.all(20),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            const Text('服务分类', style: TextStyle(fontSize: 20, fontWeight: FontWeight.w600)),
+            const SizedBox(height: 16),
+            Row(
+              children: [
+                _serviceCard(context, '🏥', '医疗健康', true, () {
+                  Navigator.push(context, MaterialPageRoute(builder: (_) => const MedicalScreen()));
+                }),
+                const SizedBox(width: 12),
+                _serviceCard(context, '🏠', '家政服务', false, null),
+                const SizedBox(width: 12),
+                _serviceCard(context, '🛒', '生活消费', false, null),
+                const SizedBox(width: 12),
+                _serviceCard(context, '🔒', '更多', false, null),
+              ],
+            ),
+            const SizedBox(height: 32),
+            // Quick access
+            const Text('快捷入口', style: TextStyle(fontSize: 20, fontWeight: FontWeight.w600)),
+            const SizedBox(height: 16),
+            _quickAccess(context, Icons.local_hospital, '在线挂号', '预约三甲医院专家号', () {
+              Navigator.push(context, MaterialPageRoute(builder: (_) => const MedicalScreen()));
+            }),
+            _quickAccess(context, Icons.chat_bubble_outline, '在线问诊', '¥19.9/次 专业医生解答', () {
+              Navigator.push(context, MaterialPageRoute(builder: (_) => const MedicalScreen()));
+            }),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _serviceCard(BuildContext context, String emoji, String label, bool active, VoidCallback? onTap) {
+    return Expanded(
+      child: GestureDetector(
+        onTap: active ? onTap : () {
+          ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('$label即将开放', style: const TextStyle(fontSize: 16))));
+        },
+        child: Container(
+          height: 100,
+          decoration: BoxDecoration(
+            color: active ? const Color(0xFFE3F2FD) : const Color(0xFFF5F5F5),
+            borderRadius: BorderRadius.circular(12),
+          ),
+          child: Column(
+            mainAxisAlignment: MainAxisAlignment.center,
+            children: [
+              Text(emoji, style: const TextStyle(fontSize: 28)),
+              const SizedBox(height: 8),
+              Text(label, style: TextStyle(fontSize: 13, color: active ? const Color(0xFF1976D2) : const Color(0xFF999999))),
+              if (!active) const Text('即将开放', style: TextStyle(fontSize: 11, color: Color(0xFFCCCCCC))),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+
+  Widget _quickAccess(BuildContext context, IconData icon, String title, String subtitle, VoidCallback onTap) {
+    return Card(
+      margin: const EdgeInsets.only(bottom: 12),
+      child: ListTile(
+        onTap: onTap,
+        leading: CircleAvatar(backgroundColor: const Color(0xFFE3F2FD), child: Icon(icon, color: const Color(0xFF1976D2))),
+        title: Text(title, style: const TextStyle(fontSize: 18, fontWeight: FontWeight.w600)),
+        subtitle: Text(subtitle, style: const TextStyle(fontSize: 14, color: Color(0xFF999999))),
+        trailing: const Icon(Icons.chevron_right),
+        contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+      ),
+    );
+  }
+}

lib/services/activity_service.dart

@@ -0,0 +1,54 @@
+import '../models/activity.dart';
+
+class ActivityService {
+  static List<Activity> mockActivities = [
+    Activity(
+      id: '1',
+      title: '人民公园晨练太极',
+      category: '太极',
+      time: DateTime.now().add(Duration(days: 1, hours: 6)),
+      location: '人民公园东门',
+      maxParticipants: 15,
+      currentParticipants: 8,
+      creatorName: '张大爷',
+      description: '每周三次的太极晨练，欢迎新朋友加入',
+    ),
+    Activity(
+      id: '2',
+      title: '锦江畔摄影采风',
+      category: '摄影',
+      time: DateTime.now().add(Duration(days: 2, hours: 14)),
+      location: '锦江绿道',
+      maxParticipants: 10,
+      currentParticipants: 5,
+      creatorName: '李阿姨',
+      description: '春天来了，一起拍拍花儿',
+    ),
+    Activity(
+      id: '3',
+      title: '茶馆品茶会',
+      category: '茶艺',
+      time: DateTime.now().add(Duration(days: 3, hours: 15)),
+      location: '宽窄巷子茶馆',
+      maxParticipants: 8,
+      currentParticipants: 3,
+      creatorName: '王老师',
+      description: '品茶聊天，结交新朋友',
+    ),
+  ];
+
+  static List<String> categories = [
+    '全部', '太极', '晨练', '书法', '摄影', '舞蹈', '旅游', '茶艺', '手工', '唱歌', '棋牌'
+  ];
+  
+  static List<Activity> getActivities({String? category}) {
+    if (category == null || category == '全部') {
+      return mockActivities;
+    }
+    return mockActivities.where((a) => a.category == category).toList();
+  }
+  
+  static void addActivity(Activity activity) {
+    mockActivities.add(activity);
+  }
+}

lib/services/ai_service.dart

@@ -0,0 +1,27 @@
+import '../models/message.dart';
+
+class AIService {
+  static List<Message> mockChat(String userInput) {
+    String reply;
+    
+    // 简单规则匹配
+    if (userInput.contains('活动') || userInput.contains('附近')) {
+      reply = '好的！我帮您查看附近的活动，您可以点击"活动广场"查看详情';
+    } else if (userInput.contains('挂号') || userInput.contains('医院')) {
+      reply = '挂号功能正在开发中，敬请期待！';
+    } else if (userInput.contains('买菜') || userInput.contains('购物')) {
+      reply = '生鲜配送功能正在开发中，敬请期待！';
+    } else if (userInput.contains('你好') || userInput.contains('您好')) {
+      reply = '您好！我是您的智能助手，有什么可以帮您的吗？';
+    } else if (userInput.contains('谢谢')) {
+      reply = '不客气！随时为您服务';
+    } else {
+      reply = '我理解您的意思了。目前我还在学习中，这个问题我会尽快帮您解决！';
+    }
+    
+    return [
+      Message(text: userInput, isUser: true),
+      Message(text: reply, isUser: false),
+    ];
+  }
+}

lib/services/auth_service.dart

@@ -0,0 +1,80 @@
+import 'package:shared_preferences/shared_preferences.dart';
+import '../models/user.dart';
+
+class AuthService {
+  static const _tokenKey = 'auth_token';
+  static const _phoneKey = 'user_phone';
+  static const _nicknameKey = 'user_nickname';
+  
+  static User? _currentUser;
+  static User? get currentUser => _currentUser;
+  static bool get isLoggedIn => _currentUser != null;
+
+  static Future<bool> checkLoginStatus() async {
+    final prefs = await SharedPreferences.getInstance();
+    final token = prefs.getString(_tokenKey);
+    if (token != null) {
+      _currentUser = User(
+        id: '1',
+        phone: prefs.getString(_phoneKey) ?? '',
+        nickname: prefs.getString(_nicknameKey),
+        city: '成都',
+      );
+      return true;
+    }
+    return false;
+  }
+
+  static Future<Map<String, dynamic>> sendCode(String phone) async {
+    // Mock: always succeed
+    await Future.delayed(const Duration(seconds: 1));
+    return {'success': true, 'expiresIn': 120};
+  }
+
+  static Future<Map<String, dynamic>> login(String phone, String code) async {
+    await Future.delayed(const Duration(seconds: 1));
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.setString(_tokenKey, 'mock_token_${DateTime.now().millisecondsSinceEpoch}');
+    await prefs.setString(_phoneKey, phone);
+    
+    _currentUser = User(
+      id: '1',
+      phone: phone,
+      city: '成都',
+    );
+    
+    return {
+      'success': true,
+      'isNewUser': true,
+      'user': _currentUser,
+    };
+  }
+
+  static Future<void> updateProfile({
+    String? nickname,
+    int? birthYear,
+    String? gender,
+    String? city,
+    List<String>? interests,
+  }) async {
+    final prefs = await SharedPreferences.getInstance();
+    if (nickname != null) {
+      await prefs.setString(_nicknameKey, nickname);
+    }
+    _currentUser = User(
+      id: _currentUser?.id ?? '1',
+      phone: _currentUser?.phone ?? '',
+      nickname: nickname ?? _currentUser?.nickname,
+      birthYear: birthYear ?? _currentUser?.birthYear,
+      gender: gender ?? _currentUser?.gender,
+      city: city ?? _currentUser?.city ?? '成都',
+      interests: interests ?? _currentUser?.interests ?? [],
+    );
+  }
+
+  static Future<void> logout() async {
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.clear();
+    _currentUser = null;
+  }
+}

lib/services/medical_service.dart

@@ -0,0 +1,58 @@
+import '../models/hospital.dart';
+
+class MedicalService {
+  static List<Hospital> mockHospitals = [
+    Hospital(
+      id: '1',
+      name: '成都市第一人民医院',
+      address: '锦江区红星路一段',
+      departments: ['内科', '外科', '骨科', '心内科', '呼吸科'],
+    ),
+    Hospital(
+      id: '2',
+      name: '四川省人民医院',
+      address: '青羊区一环路西二段',
+      departments: ['内科', '外科', '神经内科', '消化科', '肿瘤科'],
+    ),
+    Hospital(
+      id: '3',
+      name: '华西医院',
+      address: '武侯区国学巷',
+      departments: ['内科', '外科', '骨科', '眼科', '耳鼻喉科'],
+    ),
+  ];
+  
+  static List<Doctor> mockDoctors = [
+    Doctor(
+      id: '1',
+      name: '张医生',
+      department: '内科',
+      title: '主任医师',
+      fee: '50',
+    ),
+    Doctor(
+      id: '2',
+      name: '李医生',
+      department: '外科',
+      title: '副主任医师',
+      fee: '40',
+    ),
+    Doctor(
+      id: '3',
+      name: '王医生',
+      department: '骨科',
+      title: '主治医师',
+      fee: '30',
+    ),
+  ];
+  
+  static List<Appointment> appointments = [];
+  
+  static List<Doctor> getDoctorsByDepartment(String department) {
+    return mockDoctors.where((d) => d.department == department).toList();
+  }
+  
+  static void addAppointment(Appointment appointment) {
+    appointments.add(appointment);
+  }
+}

lib/theme.dart

@@ -0,0 +1,79 @@
+import 'package:flutter/material.dart';
+
+class AppTheme {
+  static ThemeData get lightTheme {
+    return ThemeData(
+      colorScheme: ColorScheme.fromSeed(
+        seedColor: const Color(0xFF1976D2),
+        brightness: Brightness.light,
+        primary: const Color(0xFF1976D2),
+        secondary: const Color(0xFF4CAF50),
+        surface: Colors.white,
+      ),
+      scaffoldBackgroundColor: const Color(0xFFFAFAFA),
+      appBarTheme: const AppBarTheme(
+        backgroundColor: Colors.white,
+        foregroundColor: Color(0xFF333333),
+        elevation: 0,
+        centerTitle: true,
+        titleTextStyle: TextStyle(
+          color: Color(0xFF333333),
+          fontSize: 22,
+          fontWeight: FontWeight.w600,
+        ),
+      ),
+      cardTheme: CardTheme(
+        color: Colors.white,
+        elevation: 0,
+        shape: RoundedRectangleBorder(
+          borderRadius: BorderRadius.circular(16),
+          side: const BorderSide(color: Color(0xFFEEEEEE), width: 1),
+        ),
+        margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 6),
+      ),
+      elevatedButtonTheme: ElevatedButtonThemeData(
+        style: ElevatedButton.styleFrom(
+          backgroundColor: const Color(0xFF1976D2),
+          foregroundColor: Colors.white,
+          minimumSize: const Size(double.infinity, 52),
+          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
+          textStyle: const TextStyle(fontSize: 18, fontWeight: FontWeight.w600),
+        ),
+      ),
+      textTheme: const TextTheme(
+        headlineLarge: TextStyle(fontSize: 28, fontWeight: FontWeight.bold, color: Color(0xFF333333)),
+        headlineMedium: TextStyle(fontSize: 22, fontWeight: FontWeight.w600, color: Color(0xFF333333)),
+        bodyLarge: TextStyle(fontSize: 18, color: Color(0xFF333333)),
+        bodyMedium: TextStyle(fontSize: 16, color: Color(0xFF666666)),
+        labelLarge: TextStyle(fontSize: 18, fontWeight: FontWeight.w600),
+      ),
+      inputDecorationTheme: InputDecorationTheme(
+        filled: true,
+        fillColor: Colors.white,
+        contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 16),
+        border: OutlineInputBorder(
+          borderRadius: BorderRadius.circular(12),
+          borderSide: const BorderSide(color: Color(0xFFDDDDDD)),
+        ),
+        enabledBorder: OutlineInputBorder(
+          borderRadius: BorderRadius.circular(12),
+          borderSide: const BorderSide(color: Color(0xFFDDDDDD)),
+        ),
+        focusedBorder: OutlineInputBorder(
+          borderRadius: BorderRadius.circular(12),
+          borderSide: const BorderSide(color: Color(0xFF1976D2), width: 2),
+        ),
+        hintStyle: const TextStyle(fontSize: 18, color: Color(0xFFBBBBBB)),
+      ),
+      bottomNavigationBarTheme: const BottomNavigationBarThemeData(
+        backgroundColor: Colors.white,
+        selectedItemColor: Color(0xFF1976D2),
+        unselectedItemColor: Color(0xFF999999),
+        selectedLabelStyle: TextStyle(fontSize: 14, fontWeight: FontWeight.w600),
+        unselectedLabelStyle: TextStyle(fontSize: 14),
+        type: BottomNavigationBarType.fixed,
+      ),
+      useMaterial3: true,
+    );
+  }
+}

lib/utils/constants.dart

@@ -0,0 +1,18 @@
+class AppConstants {
+  static const String appName = '伴享';
+  static const String appSlogan = '银发生活社交平台';
+  static const String apiBaseUrl = 'https://api.banxiang.com/api/v1';
+  
+  // Activity categories
+  static const List<String> activityCategories = [
+    '全部', '晨练', '太极', '茶话会', '书法', '摄影', 
+    '舞蹈', '户外徒步', '手工', '唱歌', '棋牌', '读书', '其他',
+  ];
+  
+  // Interest tags
+  static const List<String> interestTags = [
+    '太极', '书法', '摄影', '舞蹈', '唱歌', '棋牌', 
+    '读书', '钓鱼', '园艺', '烹饪', '旅行', '手工',
+    '徒步', '游泳', '乒乓球', '广场舞',
+  ];
+}

linux/.gitignore

@@ -0,0 +1 @@
+flutter/ephemeral

linux/CMakeLists.txt

@@ -0,0 +1,145 @@
+# Project-level configuration.
+cmake_minimum_required(VERSION 3.10)
+project(runner LANGUAGES CXX)
+
+# The name of the executable created for the application. Change this to change
+# the on-disk name of your application.
+set(BINARY_NAME "banxiang_app")
+# The unique GTK application identifier for this application. See:
+# https://wiki.gnome.org/HowDoI/ChooseApplicationID
+set(APPLICATION_ID "com.banxiang.banxiang_app")
+
+# Explicitly opt in to modern CMake behaviors to avoid warnings with recent
+# versions of CMake.
+cmake_policy(SET CMP0063 NEW)
+
+# Load bundled libraries from the lib/ directory relative to the binary.
+set(CMAKE_INSTALL_RPATH "$ORIGIN/lib")
+
+# Root filesystem for cross-building.
+if(FLUTTER_TARGET_PLATFORM_SYSROOT)
+  set(CMAKE_SYSROOT ${FLUTTER_TARGET_PLATFORM_SYSROOT})
+  set(CMAKE_FIND_ROOT_PATH ${CMAKE_SYSROOT})
+  set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+  set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
+  set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+  set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+endif()
+
+# Define build configuration options.
+if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
+  set(CMAKE_BUILD_TYPE "Debug" CACHE
+    STRING "Flutter build mode" FORCE)
+  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
+    "Debug" "Profile" "Release")
+endif()
+
+# Compilation settings that should be applied to most targets.
+#
+# Be cautious about adding new options here, as plugins use this function by
+# default. In most cases, you should add new options to specific targets instead
+# of modifying this function.
+function(APPLY_STANDARD_SETTINGS TARGET)
+  target_compile_features(${TARGET} PUBLIC cxx_std_14)
+  target_compile_options(${TARGET} PRIVATE -Wall -Werror)
+  target_compile_options(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:-O3>")
+  target_compile_definitions(${TARGET} PRIVATE "$<$<NOT:$<CONFIG:Debug>>:NDEBUG>")
+endfunction()
+
+# Flutter library and tool build rules.
+set(FLUTTER_MANAGED_DIR "${CMAKE_CURRENT_SOURCE_DIR}/flutter")
+add_subdirectory(${FLUTTER_MANAGED_DIR})
+
+# System-level dependencies.
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
+
+add_definitions(-DAPPLICATION_ID="${APPLICATION_ID}")
+
+# Define the application target. To change its name, change BINARY_NAME above,
+# not the value here, or `flutter run` will no longer work.
+#
+# Any new source files that you add to the application should be added here.
+add_executable(${BINARY_NAME}
+  "main.cc"
+  "my_application.cc"
+  "${FLUTTER_MANAGED_DIR}/generated_plugin_registrant.cc"
+)
+
+# Apply the standard set of build settings. This can be removed for applications
+# that need different build settings.
+apply_standard_settings(${BINARY_NAME})
+
+# Add dependency libraries. Add any application-specific dependencies here.
+target_link_libraries(${BINARY_NAME} PRIVATE flutter)
+target_link_libraries(${BINARY_NAME} PRIVATE PkgConfig::GTK)
+
+# Run the Flutter tool portions of the build. This must not be removed.
+add_dependencies(${BINARY_NAME} flutter_assemble)
+
+# Only the install-generated bundle's copy of the executable will launch
+# correctly, since the resources must in the right relative locations. To avoid
+# people trying to run the unbundled copy, put it in a subdirectory instead of
+# the default top-level location.
+set_target_properties(${BINARY_NAME}
+  PROPERTIES
+  RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/intermediates_do_not_run"
+)
+
+
+# Generated plugin build rules, which manage building the plugins and adding
+# them to the application.
+include(flutter/generated_plugins.cmake)
+
+
+# === Installation ===
+# By default, "installing" just makes a relocatable bundle in the build
+# directory.
+set(BUILD_BUNDLE_DIR "${PROJECT_BINARY_DIR}/bundle")
+if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+  set(CMAKE_INSTALL_PREFIX "${BUILD_BUNDLE_DIR}" CACHE PATH "..." FORCE)
+endif()
+
+# Start with a clean build bundle directory every time.
+install(CODE "
+  file(REMOVE_RECURSE \"${BUILD_BUNDLE_DIR}/\")
+  " COMPONENT Runtime)
+
+set(INSTALL_BUNDLE_DATA_DIR "${CMAKE_INSTALL_PREFIX}/data")
+set(INSTALL_BUNDLE_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib")
+
+install(TARGETS ${BINARY_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}"
+  COMPONENT Runtime)
+
+install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+  COMPONENT Runtime)
+
+foreach(bundled_library ${PLUGIN_BUNDLED_LIBRARIES})
+  install(FILES "${bundled_library}"
+    DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endforeach(bundled_library)
+
+# Copy the native assets provided by the build.dart from all packages.
+set(NATIVE_ASSETS_DIR "${PROJECT_BUILD_DIR}native_assets/linux/")
+install(DIRECTORY "${NATIVE_ASSETS_DIR}"
+   DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+   COMPONENT Runtime)
+
+# Fully re-copy the assets directory on each build to avoid having stale files
+# from a previous install.
+set(FLUTTER_ASSET_DIR_NAME "flutter_assets")
+install(CODE "
+  file(REMOVE_RECURSE \"${INSTALL_BUNDLE_DATA_DIR}/${FLUTTER_ASSET_DIR_NAME}\")
+  " COMPONENT Runtime)
+install(DIRECTORY "${PROJECT_BUILD_DIR}/${FLUTTER_ASSET_DIR_NAME}"
+  DESTINATION "${INSTALL_BUNDLE_DATA_DIR}" COMPONENT Runtime)
+
+# Install the AOT library on non-Debug builds only.
+if(NOT CMAKE_BUILD_TYPE MATCHES "Debug")
+  install(FILES "${AOT_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
+    COMPONENT Runtime)
+endif()

linux/flutter/CMakeLists.txt

@@ -0,0 +1,88 @@
+# This file controls Flutter-level build steps. It should not be edited.
+cmake_minimum_required(VERSION 3.10)
+
+set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/ephemeral")
+
+# Configuration provided via flutter tool.
+include(${EPHEMERAL_DIR}/generated_config.cmake)
+
+# TODO: Move the rest of this into files in ephemeral. See
+# https://github.com/flutter/flutter/issues/57146.
+
+# Serves the same purpose as list(TRANSFORM ... PREPEND ...),
+# which isn't available in 3.10.
+function(list_prepend LIST_NAME PREFIX)
+    set(NEW_LIST "")
+    foreach(element ${${LIST_NAME}})
+        list(APPEND NEW_LIST "${PREFIX}${element}")
+    endforeach(element)
+    set(${LIST_NAME} "${NEW_LIST}" PARENT_SCOPE)
+endfunction()
+
+# === Flutter Library ===
+# System-level dependencies.
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
+pkg_check_modules(GLIB REQUIRED IMPORTED_TARGET glib-2.0)
+pkg_check_modules(GIO REQUIRED IMPORTED_TARGET gio-2.0)
+
+set(FLUTTER_LIBRARY "${EPHEMERAL_DIR}/libflutter_linux_gtk.so")
+
+# Published to parent scope for install step.
+set(FLUTTER_LIBRARY ${FLUTTER_LIBRARY} PARENT_SCOPE)
+set(FLUTTER_ICU_DATA_FILE "${EPHEMERAL_DIR}/icudtl.dat" PARENT_SCOPE)
+set(PROJECT_BUILD_DIR "${PROJECT_DIR}/build/" PARENT_SCOPE)
+set(AOT_LIBRARY "${PROJECT_DIR}/build/lib/libapp.so" PARENT_SCOPE)
+
+list(APPEND FLUTTER_LIBRARY_HEADERS
+  "fl_basic_message_channel.h"
+  "fl_binary_codec.h"
+  "fl_binary_messenger.h"
+  "fl_dart_project.h"
+  "fl_engine.h"
+  "fl_json_message_codec.h"
+  "fl_json_method_codec.h"
+  "fl_message_codec.h"
+  "fl_method_call.h"
+  "fl_method_channel.h"
+  "fl_method_codec.h"
+  "fl_method_response.h"
+  "fl_plugin_registrar.h"
+  "fl_plugin_registry.h"
+  "fl_standard_message_codec.h"
+  "fl_standard_method_codec.h"
+  "fl_string_codec.h"
+  "fl_value.h"
+  "fl_view.h"
+  "flutter_linux.h"
+)
+list_prepend(FLUTTER_LIBRARY_HEADERS "${EPHEMERAL_DIR}/flutter_linux/")
+add_library(flutter INTERFACE)
+target_include_directories(flutter INTERFACE
+  "${EPHEMERAL_DIR}"
+)
+target_link_libraries(flutter INTERFACE "${FLUTTER_LIBRARY}")
+target_link_libraries(flutter INTERFACE
+  PkgConfig::GTK
+  PkgConfig::GLIB
+  PkgConfig::GIO
+)
+add_dependencies(flutter flutter_assemble)
+
+# === Flutter tool backend ===
+# _phony_ is a non-existent file to force this command to run every time,
+# since currently there's no way to get a full input/output list from the
+# flutter tool.
+add_custom_command(
+  OUTPUT ${FLUTTER_LIBRARY} ${FLUTTER_LIBRARY_HEADERS}
+    ${CMAKE_CURRENT_BINARY_DIR}/_phony_
+  COMMAND ${CMAKE_COMMAND} -E env
+    ${FLUTTER_TOOL_ENVIRONMENT}
+    "${FLUTTER_ROOT}/packages/flutter_tools/bin/tool_backend.sh"
+      ${FLUTTER_TARGET_PLATFORM} ${CMAKE_BUILD_TYPE}
+  VERBATIM
+)
+add_custom_target(flutter_assemble DEPENDS
+  "${FLUTTER_LIBRARY}"
+  ${FLUTTER_LIBRARY_HEADERS}
+)

linux/flutter/generated_plugin_registrant.cc

@@ -0,0 +1,15 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#include "generated_plugin_registrant.h"
+
+#include <file_selector_linux/file_selector_plugin.h>
+
+void fl_register_plugins(FlPluginRegistry* registry) {
+  g_autoptr(FlPluginRegistrar) file_selector_linux_registrar =
+      fl_plugin_registry_get_registrar_for_plugin(registry, "FileSelectorPlugin");
+  file_selector_plugin_register_with_registrar(file_selector_linux_registrar);
+}

linux/flutter/generated_plugin_registrant.h

@@ -0,0 +1,15 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#ifndef GENERATED_PLUGIN_REGISTRANT_
+#define GENERATED_PLUGIN_REGISTRANT_
+
+#include <flutter_linux/flutter_linux.h>
+
+// Registers Flutter plugins.
+void fl_register_plugins(FlPluginRegistry* registry);
+
+#endif  // GENERATED_PLUGIN_REGISTRANT_

linux/flutter/generated_plugins.cmake

@@ -0,0 +1,24 @@
+#
+# Generated file, do not edit.
+#
+
+list(APPEND FLUTTER_PLUGIN_LIST
+  file_selector_linux
+)
+
+list(APPEND FLUTTER_FFI_PLUGIN_LIST
+)
+
+set(PLUGIN_BUNDLED_LIBRARIES)
+
+foreach(plugin ${FLUTTER_PLUGIN_LIST})
+  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${plugin}/linux plugins/${plugin})
+  target_link_libraries(${BINARY_NAME} PRIVATE ${plugin}_plugin)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES $<TARGET_FILE:${plugin}_plugin>)
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${plugin}_bundled_libraries})
+endforeach(plugin)
+
+foreach(ffi_plugin ${FLUTTER_FFI_PLUGIN_LIST})
+  add_subdirectory(flutter/ephemeral/.plugin_symlinks/${ffi_plugin}/linux plugins/${ffi_plugin})
+  list(APPEND PLUGIN_BUNDLED_LIBRARIES ${${ffi_plugin}_bundled_libraries})
+endforeach(ffi_plugin)

linux/main.cc

@@ -0,0 +1,6 @@
+#include "my_application.h"
+
+int main(int argc, char** argv) {
+  g_autoptr(MyApplication) app = my_application_new();
+  return g_application_run(G_APPLICATION(app), argc, argv);
+}