想要在点击通知时停止前台服务

如何解决想要在点击通知时停止前台服务

我正在尝试使用前台服务进行通知，并且我在下面提供了媒体播放器，并且它处于循环中。

现在我想在点击通知时停止重复播放器/服务 我的服务类就像

我已经在通知 Intent 和主 Activity 中提供了 getExtra 和 PutExtra，这样有效吗？

`var player: MediaPlayer?=null
val CHANNEL_ID = "ForegroundServiceChannel"

override fun onStartCommand(intent: Intent?,flags: Int,startId: Int): Int {
    val input = intent!!.getStringExtra("inputExtra")
    createNotificationChannel()
    val notificationIntent = Intent(this,MainActivity::class.java)
    notificationIntent.putExtra("cancel",true)
    val pendingIntent = PendingIntent.getActivity(
        this,notificationIntent,0
    )
    player= MediaPlayer.create(this,Settings.System.DEFAULT_RINGTONE_URI)
    player?.isLooping=true
    player?.start()
    val notification = NotificationCompat.Builder(this,CHANNEL_ID)
        .setContentTitle("Foreground Service")
        .setContentText(input)
        .setSmallIcon(R.drawable.ic_baseline_access_alarm_24)
        .setContentIntent(pendingIntent)
        .build()
    startForeground(1,notification)


    return START_STICKY
}

override fun onDestroy() {
    super.onDestroy()
   player?.stop()
}

private fun createNotificationChannel() {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        val serviceChannel = NotificationChannel(
            CHANNEL_ID,"Foreground Service Channel",NotificationManager.IMPORTANCE_DEFAULT
        )
        val manager = getSystemService(NotificationManager::class.java)
        manager.createNotificationChannel(serviceChannel)
    }

}


override fun onBind(intent: Intent?): IBinder? {
    return null
}

} `

我的主要活动类就像

` val playBtn by lazy { findViewById<Button>(R.id.playBtn) }

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_main)


    playBtn.setOnClickListener(object:View.OnClickListener {
        override fun onClick(v: View?) {
            //val serviceIntent =  Intent(this@MainActivity,androidServ::class.java);
           // serviceIntent.putExtra("cancel","Foreground Service Example in Android")
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                startForegroundService(Intent(this@MainActivity,androidServ::class.java))
            }
        }

    })



    stopService(this)


}

private fun stopService(context: MainActivity) {
    val serviceIntent = Intent(context,androidServ::class.java)
    serviceIntent.getStringExtra("cancel")
    val an =androidServ()
    an.player?.stop()
}`