我的应用中有100个视频的数据。我需要暂停或停止时的每个视频播放时间我需要使用NSUserDefaults存储所有视频回放时间。我怎样才能做到这一点?
我试过这个。它可以很好地显示已停止的持续时间,但我需要在单个键值引用(如数组或字典)中保存已停止,暂停和完整的视频持续时间。
-(void) moviePlayerPlaybackStateDidChange:(NSNotification*)notification {
NSLog(@"playbackDidChanged");
moviePlayer = notification.object;
MPMoviePlaybackState playbackState = moviePlayer.playbackState;
if(playbackState == MPMoviePlaybackStateStopped) {
NSLog(@"MPMoviePlaybackStateStopped at %f while the full length is %f", moviePlayer.currentPlaybackTime, moviePlayer.duration);
NSLog(@"video title %@",videoTitle);
[[NSUserDefaults standardUserDefaults] setDouble:moviePlayer.currentPlaybackTime forKey:videoTitle];
[[NSUserDefaults standardUserDefaults] synchronize];
NSLog(@"User default value : %@", [[NSUserDefaults standardUserDefaults] objectForKey:videoTitle]);
} else if(playbackState == MPMoviePlaybackStatePlaying) {
NSLog(@"MPMoviePlaybackStatePlaying");
} else if(playbackState == MPMoviePlaybackStatePaused) {
NSLog(@"MPMoviePlaybackStatePaused : %f",moviePlayer.currentPlaybackTime);
[[NSUserDefaults standardUserDefaults]setDouble:moviePlayer.currentPlaybackTime forKey:videoTitle];
}
}
答案 0 :(得分:1)
实际上,当我想到这一点。如果您知道每个视频的位置,并且您已将这些值添加到NSUserDefaults,我会将所有内容存储在一个字典数组中。那么你只有一个默认值而不是100个条目。并且应该很容易找出你需要的那个。