1、在Info.plist中,添加"Required background modes"键,其值(App plays audio or streams audio/video using AirPlay)设置如下图所示:
2、添加AVFoundation框架,然后再添加如下两段代码
添加后台播放代码(AppDelegate):
AVAudioSession *session = [AVAudioSession sharedInstance];
[session setActive:YES error:nil];
[session setCategory:AVAudioSessionCategoryPlayback error:nil];