Android模拟器未收到媒体按钮回调

Question

我已经在手机上安装了该应用程序，并且在按下耳机上的按钮时按预期执行了回调，但是在模拟器上却什么也没做。

媒体按钮按下是使用以下代码生成的：

adb shell input keyevent 126

有趣的是，我可以使用此命令停止拨出电话。

我什至在Logcat的输出中找到按日志的按钮：

I/Input: injectKeyEvent: KeyEvent { action=ACTION_DOWN, keyCode=KEYCODE_MEDIA_PLAY, scanCode=0, metaState=0, flags=0x0, repeatCount=0, eventTime=46647423, downTime=46647423, deviceId=-1, source=0x101 }
I/Input: injectKeyEvent: KeyEvent { action=ACTION_UP, keyCode=KEYCODE_MEDIA_PLAY, scanCode=0, metaState=0, flags=0x0, repeatCount=0, eventTime=46647423, downTime=46647423, deviceId=-1, source=0x101 }

创建MediaSession的代码：

val callback = object : MediaSession.Callback() {
        override fun onPlay() = pressCounter.press()
        override fun onPause() = pressCounter.press()
        override fun onStop() = pressCounter.press()
    }

    mediaSession = MediaSession(applicationContext, "MYMS")

    mediaSession.setCallback(callback)
    mediaSession.setPlaybackState(
            PlaybackState.Builder().setActions(PlaybackState.ACTION_PLAY or
                    PlaybackState.ACTION_PAUSE or
                    PlaybackState.ACTION_PLAY_PAUSE)
                    .setState(PlaybackState.STATE_PLAYING,
                            0,
                            1f).build())
    mediaSession.isActive = true