我很想在用户把音乐放到他的耳光时pa。
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(playbackStateDidChange:)
name:MPMusicPlayerControllerPlaybackStateDidChangeNotification
object:[MPMusicPlayerController iPodMusicPlayer]];
行之有效。 然而,这还发生在电话上。
增 编
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(appLostFocus:)
name:UIApplicationWillResignActiveNotification
object:[UIApplication sharedApplication]];
不幸的是,在发现停产后,便会发生这种情况。
任何想法?
没有任何文件证明这样做。 这可能与私人宣传器有关,但你知道这首歌。
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