通过PendingIntent实现直接跳转到某个activity或者fragment

eg:通过通知直接跳转到某个页面

 private val CHANNEL_ID="channel_id"
  binding.btnNotification.setOnClickListener {
            setNotification()
        }
 private fun setNotification(){
        if (activity==null){
            return
        }
        if (Build.VERSION.SDK_INT>=Build.VERSION_CODES.O){
            val importance=NotificationManager.IMPORTANCE_DEFAULT
            val channel=NotificationChannel(CHANNEL_ID,"channel_name",importance)
            val notificationManager=activity?.getSystemService(NotificationManager::class.java)
            notificationManager?.createNotificationChannel(channel)
        }
        val builder=NotificationCompat.Builder(activity!!,CHANNEL_ID)
            .setSmallIcon(R.mipmap.ic_launcher)
            .setContentTitle("deeplink")
            .setContentText("hello world")
            .setPriority(NotificationCompat.PRIORITY_DEFAULT)
            .setContentIntent(getPendingIntent())
            .setAutoCancel(true)
        val notificationManager=NotificationManagerCompat.from(activity!!)
        notificationManager.notify(1,builder.build())

    }
    private fun getPendingIntent():PendingIntent?{
        if (activity!=null){
            val bundle=Bundle()
            bundle.putString("PARAMS","PendingIntent")
            return Navigation.findNavController(activity!!,R.id.btn_notification).createDeepLink()
                .setGraph(R.navigation.mobile_navigation).setDestination(R.id.navigation_notifications)
                .setArguments(bundle).createPendingIntent()
        }
        return null
    }

R.id.navigation_notifications这个是一个通知的fragment

<navigation>
    <fragment
        android:id="@+id/navigation_notifications"
        android:name="com.app.servicedemo.navigation.ui.notifications.NotificationsFragment"
        android:label="@string/title_notifications"
        tools:layout="@layout/fragment_notifications" />
</navigation>

接收的fragment的代码:

  val bundle=arguments?.getString("PARAMS")
  textView.text=bundle?:""