兼容 IOS 端

lib/features/recording/view-model/view_model_recording.dart

@@ -31,6 +31,19 @@ enum ClipboardReadResult {
   invalid,
 }
 
+List<Permission> recordingGalleryPermissionsForHost({
+  required bool isIOS,
+  required bool isAndroid,
+}) {
+  if (isIOS) {
+    return [Permission.photosAddOnly];
+  }
+  if (isAndroid) {
+    return [Permission.videos, Permission.storage];
+  }
+  return const [];
+}
+
 /// 开始录制所需的相机/麦克风权限检测结果。
 class RecordingRequiredPermissions {
   const RecordingRequiredPermissions({
@@ -221,7 +234,9 @@ class RecordingViewModel extends Notifier<RecordingModel> {
   Future<void> restorePreview() async {
     if (!RecordingPlatform.isSupported) return;
 
-    _updateSession((s) => s.copyWith(isPreviewReady: false, errorMessage: null));
+    _updateSession(
+      (s) => s.copyWith(isPreviewReady: false, errorMessage: null),
+    );
     try {
       final status = await _initializePreviewWithRetry();
       _updateSession(
@@ -245,13 +260,10 @@ class RecordingViewModel extends Notifier<RecordingModel> {
 
   /// 当前平台所需的相册/视频保存权限列表。
   List<Permission> _galleryPermissions() {
-    if (Platform.isIOS) {
-      return [Permission.photosAddOnly, Permission.photos];
-    }
-    if (Platform.isAndroid) {
-      return [Permission.videos, Permission.storage];
-    }
-    return const [];
+    return recordingGalleryPermissionsForHost(
+      isIOS: Platform.isIOS,
+      isAndroid: Platform.isAndroid,
+    );
   }
 
   /// 判断相册相关权限是否至少有一项已授予。
@@ -267,7 +279,8 @@ class RecordingViewModel extends Notifier<RecordingModel> {
   }
 
   /// 检测并尝试申请相机、麦克风权限，同步更新 session 中的 isMicrophoneGranted。
-  Future<RecordingRequiredPermissions> ensureCameraAndMicrophonePermissions() async {
+  Future<RecordingRequiredPermissions>
+  ensureCameraAndMicrophonePermissions() async {
     final permissions = await PermissionService.requestMissing([
       Permission.camera,
       Permission.microphone,
@@ -303,9 +316,7 @@ class RecordingViewModel extends Notifier<RecordingModel> {
       return;
     }
     if (!session.isPreviewReady) {
-      _updateSession(
-        (s) => s.copyWith(errorMessage: '相机预览未就绪，请稍后重试'),
-      );
+      _updateSession((s) => s.copyWith(errorMessage: '相机预览未就绪，请稍后重试'));
       return;
     }