我收到错误消息-Use of undeclared identifier 'kUTTypeMovie'
在以下代码中-
-(IBAction)selectVideo:(id)sender {
UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
imagePicker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
imagePicker.mediaTypes = [[NSArray alloc] initWithObjects:(NSString *)kUTTypeMovie, nil];
imagePicker.delegate = self;
[self presentModalViewController:imagePicker animated:YES];
}
有什么问题吗?