MPMoviePlayerController 错误或功能：将initialPlaybackTime 设置为 t 秒会隐藏时间滑块直至 t
假设一部电影时长 10 分钟，我将 initialPlaybackTime 设置为 1 分钟标记，如下所示：
NSString *urlStr = @"http://<ip>/vod_movie.m3u8"; // 10 minute long video
MPMoviePlayerController* playerController = [[MPMoviePlayerController alloc]
initWithContentURL:[NSURL URLWithString:urlStr]] ];
[playerController prepareToPlay];
[playerController setInitialPlaybackTime:60]; // Want to play from the 1 minute mark
这会导致视频从 1 分钟标记开始播放，但时间滑块隐藏了该部分早于 1 分钟，因此您无法向后查找。
Say a movie is 10 min long and I am setting initialPlaybackTime to the 1 minute mark, like thus:
NSString *urlStr = @"http://<ip>/vod_movie.m3u8"; // 10 minute long video
MPMoviePlayerController* playerController = [[MPMoviePlayerController alloc]
initWithContentURL:[NSURL URLWithString:urlStr]] ];
[playerController prepareToPlay];
[playerController setInitialPlaybackTime:60]; // Want to play from the 1 minute mark
This results in the video starting to play from the 1 minute mark, but the time-slider hides the part before 1 min, so there is no way you can seek backwards.
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这是
initialPlaybackTime的预期行为。我不知道针对您想要执行的操作有任何推荐的解决方案，但您可以尝试将initialPlaybackTime设置为-1，并在视频开始播放后使用setCurrentPlaybackTime滚动到电影中的位置您希望播放开始于。This is the intended behavior of
initialPlaybackTime. I don't know of any recommended solution for what you are trying to do, but you could try setting initialPlaybackTime to -1 and after the video starts playing usesetCurrentPlaybackTimeto scroll to the position in the movie that you want the playback to start at.