3.锁屏后对音乐播放的操作及信息显示
需要重写remoteControlReceivedWithEvent，用来获取锁屏后对播放器的操作
- (void)remoteControlReceivedWithEvent: (UIEvent *) receivedEvent
{
[CF_NOTI_CENTER postNotificationName:@"remoteControl" object:nil userInfo:@{@"event":receivedEvent}];
}
该通知发送到播放控制器，在播放控制器实现处理逻辑
- (void)remoteControl:(NSNotification *)note
{
UIEvent *receivedEvent = note.userInfo[@"event"];
if (receivedEvent.type == UIEventTypeRemoteControl)
{
switch (receivedEvent.subtype)
{
case UIEventSubtypeRemoteControlTogglePlayPause:
[self.audioStream stop];
break;
case UIEventSubtypeRemoteControlPreviousTrack:
[self.cdView scrollLeftWithPrev];
break;
case UIEventSubtypeRemoteControlNextTrack:
[self.cdView scrollRightWIthNext];
break;
case UIEventSubtypeRemoteControlPlay:
[self.cdView playOrPause];
break;
case UIEventSubtypeRemoteControlPause:
//暂停歌曲时，动画也要暂停
[self.cdView playOrPause];
break;
default:
break;
}
}
}
更新锁屏后音乐的显示信息
//锁屏显示信息
- (void)configNowPlayingInfoCenter
{
if (NSClassFromString(@"MPNowPlayingInfoCenter")) {
NSMutableDictionary * dict = [[NSMutableDictionary alloc] init];
[dict setObject:CFUSER.currentSong.songName forKey:MPMediaItemPropertyTitle];
[dict setObject:@(self.playTime)forKey:MPNowPlayingInfoPropertyElapsedPlaybackTime];
//音乐的总时间
[dict setObject:@(self.totalTime)forKey:MPMediaItemPropertyPlaybackDuration];
[[MPNowPlayingInfoCenter defaultCenter] setNowPlayingInfo:dict];
}
}
4.关于FreeStreamer的使用
初始化，开始播放
- (void)buildStreamer
{
weakSELF;
// 网络文件
NSURL *url = [NSURL URLWithString:CFUSER.currentSong.url];
if (!_audioStream) {
_audioStream = [[FSAudioStream alloc] initWithUrl:url];
_audioStream.onFailure = ^(FSAudioStreamError error,NSString *description){
NSLog(@"播放过程中发生错误，错误信息：%@",description);
[weakSelf showAlertMsg:description];
};
_audioStream.onCompletion=^(){
//播放完成后，执行下一步
[weakSelf autoPlayNext];
};
// 设置声音
[_audioStream setVolume:1];
//开始播放
[_audioStream play];
}
else
{
_audioStream.url = url;
[_audioStream play];
}
}
停止播放
[self.audioStream stop];
暂停播放和继续播放为同一个方法，别问为什么，作者就是这样写的
[self.audioStream pause];
