ios目标c从UiImagepickercontroller跳过视频预览选项

Question

 UIImagePickerController *camera = [UIImagePickerController new];
 camera.sourceType = UIImagePickerControllerSourceTypeCamera;
 camera.mediaTypes = @[(NSString *)kUTTypeMovie];
 [camera setVideoQuality:UIImagePickerControllerQualityTypeMedium];
 camera.videoMaximumDuration = 180;
 camera.delegate = self;

我们正在添加摄像头控制器来录制视频，但是它在结束后仍显示视频预览，我只想删除此预览选项。