Android call method on notification click

android, android-activity, android-intent, android-notifications

Solution

Add `android:launchMode="singleTop"` in your `activity` in your manifest file, have the method `protected void onNewIntent(Intent intent) { ... }` and use this code:

private static final int MY_NOTIFICATION_ID = 1;
private NotificationManager notificationManager;
private Notification myNotification;

void notification() {   
    notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
    myNotification = new Notification(R.drawable.next, "Notification!", System.currentTimeMillis());
    Context context = getApplicationContext();
    String notificationTitle = "Exercise of Notification!";
    String notificationText = "http://android-er.blogspot.com/";
    Intent myIntent = new Intent(this, YourActivity.class);
    PendingIntent pendingIntent = PendingIntent.getActivity(YourActivity.this, 0, myIntent, Intent.FILL_IN_ACTION);
    myNotification.flags |= Notification.FLAG_AUTO_CANCEL;
    myNotification.setLatestEventInfo(context, notificationTitle, notificationText, pendingIntent);
    notificationManager.notify(MY_NOTIFICATION_ID, myNotification);
}

Problem

This code creates a notification. If you click it, the current application is ran (the intent is created in `Entry`, which is my only `Activity`), a slightly modified version of a Android Developers blog: ``` private void makeIntent() { NotificationManager mgr = (NotificationManager) getSystemService(NOTIFICATION_SERVICE); Notification note = new Notification(R.drawable.prev, "Status message!", System.currentTimeMillis()); Intent intent = new Intent(this, Entry.class); PendingIntent pi = PendingIntent.getActivity(this, 0, intent, 0); note.setLatestEventInfo(this, "New Email", "Unread Conversation", pi); note.flags |= Notification.FLAG_AUTO_CANCEL; mgr.notify(NOTIFY_ME_ID, note); } ``` But I don't want to start any activity, but merely to run a method in the current activity. From what I've read so far, I guess I have to use methods like `startActivityForResult()`, use `intent-filters` and implement `onActivityResult()`, but after messing around with all those things, changing things in the `Intent` and `PendingIntent`, I still have no usable result. Is it possible to somehow just call a method in `Entry` (my main `Activity`, in which the `Intent` is created), or catch any outgoing or incoming `Intents` when I click my newly made `Notification`? PS. my apologies if this is a duplicate thread, SO is quite slow right now, I can't search properly.

Original source