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2014/10/15 ¤U¤È 10:04:03
iphone Programming Glossary: assetfolderDrawing waveform with AVAssetReader http://stackoverflow.com/questions/5032775/drawing-waveform-with-avassetreader x 4 #define imgExt @ png #define imageToData x UIImagePNGRepresentation x NSString assetCacheFolder NSArray assetFolderRoot NSSearchPathForDirectoriesInDomains NSCachesDirectory NSUserDomainMask YES return NSString stringWithFormat @ @ audio.. NSSearchPathForDirectoriesInDomains NSCachesDirectory NSUserDomainMask YES return NSString stringWithFormat @ @ audio assetFolderRoot objectAtIndex 0 NSString cachedAudioPictogramPathForMPMediaItem MPMediaItem item NSString assetFolder self class assetCacheFolder.. @ @ audio assetFolderRoot objectAtIndex 0 NSString cachedAudioPictogramPathForMPMediaItem MPMediaItem item NSString assetFolder self class assetCacheFolder NSNumber libraryId item valueForProperty MPMediaItemPropertyPersistentID NSString assetPictogramFilename..
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