c# - 如何在不启动 Monotouch 播放的情况下从电影中获取缩略图

Question

我想从我的代码中删除 movie.Stop() 行。

我还可以使用其他什么方法从电影中获取缩略图？

NSUrl data = new NSUrl(info.ObjectForKey(new NSString("UIImagePickerControllerMediaURL")).ToString());

//get the video thumbnail
MPMoviePlayerController movie = new MPMoviePlayerController(data);
movie.Stop();
UIImage videoThumbnail = movie.ThumbnailImageAt(0.0, MPMovieTimeOption.NearestKeyFrame);
movie.Stop();

Answer 1

我运行如下代码，它似乎在我编写的应用程序中运行良好。注意 ShouldAutoplay=false;

NSUrl data = new NSUrl(info.ObjectForKey(new NSString("UIImagePickerControllerMediaURL")).ToString());

//get the video thumbnail
MPMoviePlayerController movie = new MPMoviePlayerController(data);
movie.ShouldAutoplay = false;
UIImage videoThumbnail = movie.ThumbnailImageAt(0.0, MPMovieTimeOption.NearestKeyFrame);