Dramatically simplify retrieveLostData

packages/image_picker/image_picker_android/lib/image_picker_android.dart

@@ -144,43 +144,6 @@ class ImagePickerAndroid extends ImagePickerPlatform {
     );
   }
 
-  @override
-  Future<LostData> retrieveLostData() async {
-    final Map<String, dynamic>? result =
-        await _channel.invokeMapMethod<String, dynamic>('retrieve');
-
-    if (result == null) {
-      return LostData.empty();
-    }
-
-    assert(result.containsKey('path') != result.containsKey('errorCode'));
-
-    final String? type = result['type'] as String?;
-    assert(type == kTypeImage || type == kTypeVideo);
-
-    RetrieveType? retrieveType;
-    if (type == kTypeImage) {
-      retrieveType = RetrieveType.image;
-    } else if (type == kTypeVideo) {
-      retrieveType = RetrieveType.video;
-    }
-
-    PlatformException? exception;
-    if (result.containsKey('errorCode')) {
-      exception = PlatformException(
-          code: result['errorCode']! as String,
-          message: result['errorMessage'] as String?);
-    }
-
-    final String? path = result['path'] as String?;
-
-    return LostData(
-      file: path != null ? PickedFile(path) : null,
-      exception: exception,
-      type: retrieveType,
-    );
-  }
-
   @override
   Future<XFile?> getImage({
     required ImageSource source,
@@ -247,6 +210,21 @@ class ImagePickerAndroid extends ImagePickerPlatform {
     return path != null ? XFile(path) : null;
   }
 
+  @override
+  Future<LostData> retrieveLostData() async {
+    final LostDataResponse result = await getLostData();
+
+    if (result.isEmpty) {
+      return LostData.empty();
+    }
+
+    return LostData(
+      file: result.file != null ? PickedFile(result.file!.path) : null,
+      exception: result.exception,
+      type: result.type,
+    );
+  }
+
   @override
   Future<LostDataResponse> getLostData() async {
     List<XFile>? pickedFileList;