Ios MPRemoteCommandCenter未接收命令触发器

我已经设置了这样一个函数

 func setupRemoteCommandCenter(enable: Bool) {
    do{
        try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayAndRecord, mode: AVAudioSessionModeDefault, options: AVAudioSessionCategoryOptions.allowBluetooth)
    }
    catch {
        print("Setting category failed.")
    }
    let remoteCommandCenter = MPRemoteCommandCenter.shared()

    remoteCommandCenter.pauseCommand.isEnabled = enable
    remoteCommandCenter.playCommand.isEnabled = enable
    remoteCommandCenter.stopCommand.isEnabled = enable
    remoteCommandCenter.togglePlayPauseCommand.isEnabled = enable

    if enable {
        remoteCommandCenter.pauseCommand.addTarget(self, action: #selector(airPodsTap))
        remoteCommandCenter.playCommand.addTarget(self, action: #selector(airPodsTap))
        remoteCommandCenter.stopCommand.addTarget(self, action: #selector(airPodsTap))
        remoteCommandCenter.togglePlayPauseCommand.addTarget(self, action: #selector(airPodsTap))


    } else {

        remoteCommandCenter.pauseCommand.removeTarget(self, action: #selector(airPodsTap))
        remoteCommandCenter.playCommand.removeTarget(self, action: #selector(airPodsTap))
        remoteCommandCenter.stopCommand.removeTarget(self, action: #selector(airPodsTap))
        remoteCommandCenter.togglePlayPauseCommand.removeTarget(self, action: #selector(airPodsTap))

    }


}

遵循苹果的文档，但我无法始终从外部耳机（有线/或蓝牙）接收事件

我已经在项目设置中启用了音频背景模式

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有什么想法吗？

我也有同样的问题，有人能帮我们吗？