iOS 后台音频播放控制，锁屏音频播放控制及音频信息设置，效果图如下：
1.在 AppDelegate.m 中实现下面方法，获取音频播放、暂停、上一首、下一首点击事件：
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- (BOOL)canBecomeFirstResponder{ return YES;} //锁屏界面控制监听- (void)remoteControlReceivedWithEvent:(UIEvent *)event{ if (event.type == UIEventTypeRemoteControl) { switch (event.subtype) { case UIEventSubtypeRemoteControlPlay: { //播放 NSLog(@"Play"); break; } case UIEventSubtypeRemoteControlPause: { //暂停 NSLog(@"Pause"); break; } case UIEventSubtypeRemoteControlNextTrack: { //下一首 NSLog(@"Next"); break; } case UIEventSubtypeRemoteControlPreviousTrack: { //上一首 NSLog(@"Previous"); break; } default: break; } }} |
2.设置锁屏信息：
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//设置锁屏信息- (void)setLockingInfo{ Class playingInfoCenter = NSClassFromString(@"MPNowPlayingInfoCenter"); if (playingInfoCenter) { //音频模型 HWMusicModel *model = [HWMusicTool playingMusic]; //数据信息 NSMutableDictionary *songInfo = [[NSMutableDictionary alloc] init]; //图片 MPMediaItemArtwork *albumArt = [[MPMediaItemArtwork alloc] initWithImage:[UIImage imageWithUrlString:model.icon]]; [songInfo setObject:albumArt forKey:MPMediaItemPropertyArtwork]; //当前播放时间 [songInfo setObject:[NSNumber numberWithDouble:[[[HWMusicTool shareMusicTool] Player] currentPlaybackTime]] forKey:MPNowPlayingInfoPropertyElapsedPlaybackTime]; //速率 [songInfo setObject:[NSNumber numberWithFloat:1.0f] forKey:MPNowPlayingInfoPropertyPlaybackRate]; //剩余时长 [songInfo setObject:[NSNumber numberWithDouble:[[[HWMusicTool shareMusicTool] Player] duration]] forKey:MPMediaItemPropertyPlaybackDuration]; //设置标题 [songInfo setObject:model.title forKey:MPMediaItemPropertyTitle]; //设置副标题 [songInfo setObject:@"周杰伦 - 周杰伦的床边故事" forKey:MPMediaItemPropertyArtist]; //设置音频数据信息 [[MPNowPlayingInfoCenter defaultCenter] setNowPlayingInfo:songInfo]; }} |
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/hero_wqb/article/details/51777183
