播放器类app如何后台继续播放并在上拉菜单中控制

1.在TARGETS－Capabilities－Background Modes设置为ON，勾选Audio and AirPlay选项

2.代码中加入如下代码

    AVAudioSession *session = [AVAudioSession sharedInstance];
    [session setActive:YES error:nil];
    [session setCategory:AVAudioSessionCategoryPlayback error:nil];
    //让app支持接受远程控制事件
    [[UIApplication sharedApplication] beginReceivingRemoteControlEvents];

3.加入远程控制事件方法（是重写这个方法）

-(void)remoteControlReceivedWithEvent:(UIEvent *)event{
    if (event.type==UIEventTypeRemoteControl) {
        switch (event.subtype) {
            case UIEventSubtypeRemoteControlTogglePlayPause:
                [self playButtonOnClick:self.playOrPause];
                break;
            case UIEventSubtypeRemoteControlPreviousTrack:
                [self lastStoryOnClick:nil];
                break;
            case UIEventSubtypeRemoteControlNextTrack:
                [self nextStoryOnClick:nil];
                break;
            case UIEventSubtypeRemoteControlPlay:
                [self playButtonOnClick:self.playOrPause];
                break;
            case UIEventSubtypeRemoteControlPause:
                [self playButtonOnClick:self.playOrPause];
                break;
            default:
                break;
        }
    }
}

大概就是这样，上面的代码涉及到自己VC中的方法，自己替换一下就好。