ios 4 新特性--------AssetsLibrary

一：assetslibrary

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读取photo 和video

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1：add AssetsLibrary

2：#import <AssetsLibrary/AssetsLibrary.h>

3：

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二：在你的app 中播放视频
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1：add MediaPlayer
2：#import <MediaPlayer/MediaPlayer.h>
3：

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-(void) movieFinishedPlaying: (NSNotification *) note { [[NSNotificationCenter defaultCenter]  removeObserver:self  name:MPMoviePlayerPlaybackDidFinishNotification   object:[player moviePlayer]];  [player release];}
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