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POHow to support to play audio file in the background
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copied!<p>There is a function in my project to support playing a new audio file even in the background status.I use the MPMoviePlayerController class to play audio files. But I found it was started in the active status，then it would continue playing the same audio(if the audio file wasn't finished) in the background status；But it won't start a new audio in the background status.</p> <p>How can I to support playing a new audio in the backgound status？ I found the music player of the iphone can support playing a new audio in the background status，when set runloop or random PlayMode.</p> <p>The following is my code to prove the appearance in fact:</p> <pre><code>(void)applicationDidEnterBackground:(UIApplication *)application { if (pCotnroller1) { [pCotnroller1 release]; } pCotnroller1 = [[MPMoviePlayerController alloc] initWithContentURL:[NSURL URLWithString:@"http://r.yhiker.com:9001/0086/32/05/060009/Data/6/00863205060009006_24Kbps.mp3"]]; pCotnroller1.shouldAutoplay = YES; [pCotnroller1 play]; //it wasn't played here } (void)applicationWillEnterForeground:(UIApplication *)application { // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background. if (pCotnroller1) { switch (pCotnroller1.playbackState) { case MPMoviePlaybackStateStopped: NSLog(@"播放地址"); break; case MPMoviePlaybackStatePaused: NSLog(@"播放暂停"); break; case MPMoviePlaybackStateInterrupted: NSLog(@"播放中断"); break; case MPMoviePlaybackStateSeekingBackward: break; case MPMoviePlaybackStateSeekingForward: break; default: break; } if (pCotnroller1.playbackState == MPMoviePlaybackStatePlaying) { //it will come here,and play autoed here // [pCotnroller1 play]; } else { } } } </code></pre>

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