How to open fragment page, when pressed a notification in android

Question

I am trying to open a fragment when I press a notification in the notification bar. My app structure is:

• a base activity with a nav drawer menu

• some fragment that are opened from menu

  b.setOnClickListener(new OnClickListener() {          @SuppressWarnings({ "deprecation", "static-access" })         public void onClick(View v) {          w_nm=(NotificationManager) getActivity().getSystemService(getActivity().NOTIFICATION_SERVICE);           Notification notify=new Notification(R.drawable.notnificationlogo,waternoti,System.currentTimeMillis());           Intent notificationIntent = new Intent(getActivity(), Abc.class);             PendingIntent pending=PendingIntent.getActivity(getActivity(), 0,notificationIntent, 0);            notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP                  | Intent.FLAG_ACTIVITY_SINGLE_TOP );          notify.flags = Notification.DEFAULT_LIGHTS | Notification.FLAG_AUTO_CANCEL;             notify.setLatestEventInfo(getActivity(),waternoti,waternoti1, pending);           w_nm.notify(0, notify); 

Can anyone tell me how to link with next fragment page (the present code is in class that extends fragment)

Answer 1

If you are using Navigation Component you can open a specific destination using NavDeepLinkBuilder:

 val pendingIntent = NavDeepLinkBuilder(context)                      .setComponentName(MainActivity::class.java)                      .setGraph(R.navigation.nav_graph)                      .setDestination(R.id.destination)                      .setArguments(bundle)                      .createPendingIntent()  ...  notificationBuilder.setContentIntent(pendingIntent)  ...  

Please note that it's important to use setComponentName only if your destination isn't in the launcher activity.