MPMoviePlayerController播放过程中自动暂停的问题

在使用系统播放器MPMoviePlayerController的过程中，会出现播放器自动暂停的情况，有两种解决办法：

（1）在播放开始的时候，设置useApplicationAudioSession ＝ NO;

(2)  重启手机，也可以恢复

参考网址：

http://stackoverflow.com/questions/3000969/ipad-mpmovieplayercontroller-video-loads-but-automatically-pauses-when-played

http://stackoverflow.com/questions/5237235/mediaplayer-wont-play-video/5238410#5238410

http://stackoverflow.com/questions/25840423/ios-movie-player-unknown-load-state-after-playing-a-video-once-mpmovieplayercont

http://stackoverflow.com/questions/12041260/an-avplayeritem-cannot-be-associated-with-more-than-one-instance-of-avplayer