feat: 新增扫码功能

- 添加 CameraX 和 ML Kit Barcode Scanning 依赖，用于实现二维码扫描。
- 在 AndroidManifest.xml 中添加相机权限声明。
- 新增 `ScanQrScreen` 扫码页面及相应的 `ScanQr` 导航路由。
- 在首页右上角菜单中，为“扫一扫”按钮添加跳转到扫码页面的功能。

app/build.gradle.kts

@@ -127,5 +127,11 @@ dependencies {
     implementation (libs.eventbus)
     implementation(libs.lottie)
 
+    // CameraX + ML Kit（版本在 libs.versions.toml）
+    implementation(libs.androidx.camera.camera2)
+    implementation(libs.androidx.camera.lifecycle)
+    implementation(libs.androidx.camera.view)
+    implementation(libs.mlkit.barcode.scanning)
+
 }
 

app/src/main/AndroidManifest.xml

@@ -7,6 +7,8 @@
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
     <uses-permission android:name="android.permission.READ_PHONE_STATE" />
+    <uses-permission android:name="android.permission.CAMERA" />
+    <uses-feature android:name="android.hardware.camera.any" android:required="false" />
 
     <application
         android:name=".RaveNowApplication"

app/src/main/java/com/aiosman/ravenow/ui/Navi.kt

@@ -78,6 +78,7 @@ import com.aiosman.ravenow.ui.post.PostScreen
 import com.aiosman.ravenow.ui.profile.AccountProfileV2
 import com.aiosman.ravenow.ui.index.tabs.profile.vip.VipSelPage
 import com.aiosman.ravenow.ui.notification.NotificationScreen
+import com.aiosman.ravenow.ui.scan.ScanQrScreen
 
 sealed class NavigationRoute(
     val route: String,
@@ -130,6 +131,7 @@ sealed class NavigationRoute(
     data object NotificationScreen : NavigationRoute("NotificationScreen")
     data object MbtiSelect : NavigationRoute("MbtiSelect")
     data object ZodiacSelect : NavigationRoute("ZodiacSelect")
+    data object ScanQr : NavigationRoute("ScanQr")
 }
 
 
@@ -453,6 +455,9 @@ fun NavigationController(
                 SearchScreen()
             }
         }
+        composable(route = NavigationRoute.ScanQr.route) {
+            ScanQrScreen()
+        }
         composable(
             route = NavigationRoute.FollowerList.route,
             arguments = listOf(navArgument("id") { type = NavType.IntType })

app/src/main/java/com/aiosman/ravenow/ui/index/Index.kt

@@ -586,7 +586,11 @@ fun SideMenuContent(
                     .align(Alignment.TopEnd)
                     .offset(x = (-112).dp, y = 88.dp)
                     .noRippleClickable {
-                        // TODO: 实现扫一扫功能
+                        // 扫一扫功能：跳转到扫码页面
+                        coroutineScope.launch {
+                            onClose()
+                            navController.navigate(NavigationRoute.ScanQr.route)
+                        }
                     },
                 horizontalArrangement = Arrangement.spacedBy(16.dp),
                 verticalAlignment = Alignment.CenterVertically

gradle/libs.versions.toml

@@ -40,6 +40,8 @@ lifecycleProcess = "2.8.4"
 playServicesAuth = "21.4.0"
 rendering = "1.17.1"
 zoomable = "1.6.1"
+camerax = "1.3.4"
+mlkitBarcode = "17.3.0"
 
 [libraries]
 accompanist-systemuicontroller = { module = "com.google.accompanist:accompanist-systemuicontroller", version.ref = "accompanistSystemuicontroller" }
@@ -56,6 +58,9 @@ androidx-media3-ui = { module = "androidx.media3:media3-ui", version.ref = "medi
 androidx-navigation-compose = { module = "androidx.navigation:navigation-compose", version.ref = "navigationCompose" }
 androidx-paging-compose = { module = "androidx.paging:paging-compose", version.ref = "pagingRuntime" }
 androidx-paging-runtime = { module = "androidx.paging:paging-runtime", version.ref = "pagingRuntime" }
+androidx-camera-camera2 = { module = "androidx.camera:camera-camera2", version.ref = "camerax" }
+androidx-camera-lifecycle = { module = "androidx.camera:camera-lifecycle", version.ref = "camerax" }
+androidx-camera-view = { module = "androidx.camera:camera-view", version.ref = "camerax" }
 coil = { module = "io.coil-kt:coil", version.ref = "coil" }
 coil-compose = { module = "io.coil-kt:coil-compose", version.ref = "coil" }
 compose-image-blurhash = { module = "com.github.orlando-dev-code:compose-image-blurhash", version.ref = "composeImageBlurhash" }
@@ -99,6 +104,7 @@ rendering = { group = "com.google.ar.sceneform", name = "rendering", version.ref
 retrofit = { module = "com.squareup.retrofit2:retrofit", version.ref = "converterGson" }
 zoomable = { module = "net.engawapg.lib:zoomable", version.ref = "zoomable" }
 lottie = { module="com.airbnb.android:lottie-compose", version="6.6.10"}
+mlkit-barcode-scanning = { module = "com.google.mlkit:barcode-scanning", version.ref = "mlkitBarcode" }
 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }
 jetbrains-kotlin-android = { id = "org.jetbrains.kotlin.android", version.ref = "kotlin" }