迅速。 接收远程控制事件以与MPNowPLayingInfoCenter一起工作

据我所知，为了在锁屏上显示音乐播放器，只写下面的代码是不够的。

override func viewDidAppear(animated: Bool) { var mpic = MPNowPlayingInfoCenter.defaultCenter() mpic.nowPlayingInfo = [ MPMediaItemPropertyTitle:"This Is a Test", MPMediaItemPropertyArtist:"Matt Neuburg" ] } 

我的应用程序也应该能够接收远程控制事件

那么，如何在Swift中做到这一点？

我从Apple文档中find了这个，但是它是针对Objective-C的。

 - (void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; // Turn on remote control event delivery [[UIApplication sharedApplication] beginReceivingRemoteControlEvents]; // Set itself as the first responder [self becomeFirstResponder]; } - (void)viewWillDisappear:(BOOL)animated { // Turn off remote control event delivery [[UIApplication sharedApplication] endReceivingRemoteControlEvents]; // Resign as first responder [self resignFirstResponder]; [super viewWillDisappear:animated]; } - (void)remoteControlReceivedWithEvent:(UIEvent *)receivedEvent { if (receivedEvent.type == UIEventTypeRemoteControl) { switch (receivedEvent.subtype) { case UIEventSubtypeRemoteControlTogglePlayPause: [self playOrStop: nil]; break; case UIEventSubtypeRemoteControlPreviousTrack: [self previousTrack: nil]; break; case UIEventSubtypeRemoteControlNextTrack: [self nextTrack: nil]; break; default: break; } } } 

Answer 1

刚刚在GitHub上find解决schemehttps://github.com/mattneub/Programming-iOS-Book-Examples/tree/master/bk2ch14p643ducking/ch27p912ducking