我的项目中有一个功能支持即使在后台状态下播放新的音频文件。我使用MPMoviePlayerController类播放音频文件。 但是我发现它是在活动状态下启动的,那么它会在后台状态下继续播放相同的音频(如果音频文件没有完成);但是它不会在后台状态下启动新的音频。如何支持在后台播放音频文件
我该如何支持在背景状态下播放新音频? 我发现iPhone的音乐播放器可以支持在后台状态播放新音频时设置runloop或随机播放模式。
以下是我的代码来证明其实外观:
(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
{
}
}
}
我曾经使用网络音频资源,它也没有工作 – gsy 2013-03-18 08:25:42