CODEWITHSUNDEEP
androidandroid-intentandroid-activitypush-notificationandroid-pendingintent
iZBasit
iZBasit

Reputation: 1313

How to restart / refresh contents of activity on notification click

I am trying to refresh the contents of an activity on click of a notification. I can navigate to the activity when I am in some other activity and I click on the notification. What I am trying to achieve is, I am in Activity A which is displaying some content. I get a new notification, I click on it Activity A should either be relaunched or the content in the activity should be refreshed with respect to what I am passing in the PendingIntent of the Notification.

What all I have done,

  1. Tried setting PendingIntent.FLAG_CANCEL_CURRENT and PendingIntent.FLAG_UPDATE_CURRENT

  2. Tried setting Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_SINGLE_TOP in the intent I am passing along with the pending intent.

  3. Checked the data in onNewIntent() its doesn't get refreshed. I get the same data which I have passed in the old intent.

  4. Passed a unique requestCode along with the PendingIntent as well, still the same.

Any Other suggestions?

Upvotes: 6

Views: 7030

Answers (4)

Min2
Min2

Reputation: 10971

try this code:

           Intent notificationIntent = new Intent(context, DetailActivity.class);
           notificationIntent.putExtra(CommonConstants.EXTRA_NOTE_ID, note.get_id());
           notificationIntent.setAction(CommonConstants.NOTE_NOTIFICATION_REMINDER);

           notificationIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
           PendingIntent contentIntent = PendingIntent.getActivity(context, note.get_id(), notificationIntent,
                    PendingIntent.FLAG_UPDATE_CURRENT);
           NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context).setSmallIcon(R.drawable.ic_launcher)
                    .setContentTitle(context.getString(R.string.app_name)).setContentText(note.getMessage());
           mBuilder.setContentIntent(contentIntent);
           mBuilder.setDefaults(Notification.DEFAULT_SOUND);
           mBuilder.setAutoCancel(true);
           NotificationManager mNotificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
           mNotificationManager.notify(note.get_id(), mBuilder.build());

most important you have to call 

 PendingIntent contentIntent = PendingIntent.getActivity(context, note.get_id(), notificationIntent,
                    PendingIntent.FLAG_UPDATE_CURRENT);

or

PendingIntent.FLAG_CANCEL_CURRENT

Upvotes: 1

David Wasser
David Wasser

Reputation: 95568

If you use Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP, this should recreate the activity if it was in the stack, or start a new activity if it wasn't in the stack. If you don't want the activity to be recreated (if it is already in the stack), you can use Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP.

Upvotes: 6

manao
manao

Reputation: 328

As aldoran said, use LocalBroadcastManager. In your Activity class:

@Override
protected void onResume() {
    super.onResume();
    LocalBroadcastManager.getInstance(this).registerReceiver(mMessageReceiver, new IntentFilter(FILTER_STRING));
}

@Override
protected void onPause() {
    super.onPause();
    LocalBroadcastManager.getInstance(this).unregisterReceiver(mMessageReceiver);
}

private BroadcastReceiver mMessageReceiver = new BroadcastReceiver() {
  @Override
  public void onReceive(Context context, Intent intent) {
    Log.d("receiver", "Got message");
  }
};

And then in GSM Broadcast put your data in intent:

Intent intent = new Intent(FILTER_STRING);
LocalBroadcastManager.getInstance(this).sendBroadcast(intent);

Upvotes: 4

aldorain
aldorain

Reputation: 790

You could also use LocalBroadcastManager or write your own BroadcastReceiver and then send Broadcast from your Notification

Upvotes: -1

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