remoteControlReceived(带有事件:UIEvent?)未触发

问题描述

我有录音/播放应用程序.但是，当用户使用常规的有线iPhone耳机上的播放/暂停按钮时，我想暂停播放.所以我实现了远程事件的处理:

I have audio recording/playing app. But I want to pause playing, when user uses play/pause button on the regular wired iPhone headset.So i implemented handling of remote events:

// MARK: Overrides
internal extension AppDelegate {
    override func remoteControlReceived(with event: UIEvent?) {
        super.remoteControlReceived(with: event)
        /* some other logic */
    }
}

然后我开始在application: didFinishLaunchingWithOptions:中接收远程事件:

Then I started receiving remote events in application: didFinishLaunchingWithOptions::

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey : Any]? = nil) -> Bool {
    application.beginReceivingRemoteControlEvents()
    becomeFirstResponder()
    /* some other logic */
    return true
}

但是无论如何都不会触发remoteControlReceived(with event: UIEvent?).

But anyway remoteControlReceived(with event: UIEvent?) is never triggered.

我也尝试了MPRemoteCommandCenter:

Also I tried MPRemoteCommandCenter:

MPRemoteCommandCenter.shared().togglePlayPauseCommand.addTarget { (event) -> MPRemoteCommandHandlerStatus in
    return .success
}

没有触发.

接受快速或客观答案:)

Swift or objective-c answers accepted :)

怎么了?还是应该在.plist中添加一些内容?

What is wrong? Or should I add something in .plist?

推荐答案

好，我找到了原因....我正在使用我的应用程序将声音与其他应用程序混合，因此我要通过mixWithOthers选项:

Ok, I found the reason.... I'm using my app to mix it's sound with other apps, so I'm activating audio session with mixWithOthers option:

AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback, with: [.mixWithOthers])

但是，如果我使用的是mixWithOthers，则应用会停止接收远程事件.这意味着，如果我想从耳机接收toggle play/pause事件，则不能使用此选项:

But, if I'm using mixWithOthers, app stops to receive remote events. That means, that if I want to receive toggle play/pause event from headset, I can't use this option:

AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback)

这很奇怪，但这就是我们所拥有的.因此，就我而言，我不能使用耳机按钮:(

This is weird, but this is what we have. So in my case I can't use headset buttons :(

这篇关于remoteControlReceived(带有事件:UIEvent?)未触发的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！