兼容 IOS 端

lib/features/recording/widgets/camera_preview_widget.dart

@@ -8,18 +8,27 @@ class CameraPreviewWidget extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    if (!Platform.isAndroid) {
-      return const ColoredBox(
-        color: Colors.black,
-        child: Center(child: Text('仅 Android 支持相机预览')),
+    if (Platform.isAndroid) {
+      return AndroidView(
+        viewType: 'recording-camera-preview',
+        layoutDirection: TextDirection.ltr,
+        creationParams: const <String, dynamic>{},
+        creationParamsCodec: const StandardMessageCodec(),
       );
     }
 
-    return AndroidView(
-      viewType: 'recording-camera-preview',
-      layoutDirection: TextDirection.ltr,
-      creationParams: const <String, dynamic>{},
-      creationParamsCodec: const StandardMessageCodec(),
+    if (Platform.isIOS) {
+      return UiKitView(
+        viewType: 'recording-camera-preview',
+        layoutDirection: TextDirection.ltr,
+        creationParams: const <String, dynamic>{},
+        creationParamsCodec: const StandardMessageCodec(),
+      );
+    }
+
+    return const ColoredBox(
+      color: Colors.black,
+      child: Center(child: Text('当前平台不支持相机预览')),
     );
   }
 }