iOS中关于音乐锁屏控制音乐(锁屏信息设置)的实例代码

 
appDelegate里面加入如下代码获取后台播放权限
- (void)setAudioBackstagePlay{ AVAudioSession *audioSession = [AVAudioSession sharedInstance]; [audioSession setCategory:AVAudioSessionCategoryPlayback error:nil]; [audioSession setActive:YES error:nil]; }
//重写父类方法，接受外部事件的处理 - (void) remoteControlReceivedWithEvent: (UIEvent *) receivedEvent { NSLog(@"remote"); if (receivedEvent.type == UIEventTypeRemoteControl) { switch (receivedEvent.subtype) { // 得到事件类型 case UIEventSubtypeRemoteControlTogglePlayPause: // 暂停 ios6 [_player musicPause]; // 调用你所在项目的暂停按钮的响应方法 下面的也是如此 break; case UIEventSubtypeRemoteControlPreviousTrack: // 上一首 [self lastMusic]; break; case UIEventSubtypeRemoteControlNextTrack: // 下一首 [self nextMusic]; break; case UIEventSubtypeRemoteControlPlay: //播放 [_player musicPlay]; break; case UIEventSubtypeRemoteControlPause: // 暂停 ios7 [_player musicPause]; break; default: break; } } }
- (void)configNowPlayingCenter { NSLog(@"锁屏设置"); //   BASE_INFO_FUN(@"配置NowPlayingCenter"); YBVideoListModel * list = _model.audioList[_currentIndexPath.row];
  //以下代码是加载锁屏显示网络图片以及其他设置 [[SDWebImageManager sharedManager] downloadImageWithURL:[NSURL URLWithString:list.thumbUrl] options:SDWebImageRetryFailed progress:nil completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) { if (image == nil) { image = [UIImage imageNamed:@"default_music"]; } NSMutableDictionary * info = [NSMutableDictionary dictionary]; //音乐的标题 [info setObject:list.title forKey:MPMediaItemPropertyTitle]; //音乐的艺术家 NSString *author= list.singer; [info setObject:author forKey:MPMediaItemPropertyArtist]; //音乐的播放时间 [info setObject:@(_player.player.currentTime.value) forKey:MPNowPlayingInfoPropertyElapsedPlaybackTime]; //音乐的播放速度 [info setObject:@(1) forKey:MPNowPlayingInfoPropertyPlaybackRate]; //音乐的总时间 [info setObject:@(list.duration) forKey:MPMediaItemPropertyPlaybackDuration]; //音乐的封面 MPMediaItemArtwork * artwork = [[MPMediaItemArtwork alloc] initWithImage:image]; [info setObject:artwork forKey:MPMediaItemPropertyArtwork]; //完成设置 [[MPNowPlayingInfoCenter defaultCenter]setNowPlayingInfo:info]; }]; }