PendingIntent from notification and application history conflicts

Question

I'm creating a notification with something similar to the following:

    Intent ni = new Intent(this, SomeActivity.class);
    ni.putExtra("somestring", "somedata");
    PendingIntent contentIntent = 
        PendingIntent.getActivity(this, 0, ni, 
                PendingIntent.FLAG_UPDATE_CURRENT|PendingIntent.FLAG_ONE_SHOT);
    Context context = getApplicationContext();

    notification.setLatestEventInfo(context, 
            res.getString(R.string.app_name), 
            text, contentIntent);

The key here is the extra data on the Intent for the notification. Once I click on the notification and it brings up SomeActivity, it brings up the activity and the extra data is available.

However, if I exit the app, hold the home button until the recent activities list comes up, and choose to open the app again, the extra data is still passed. Is there a way I can make this data get passed only if the app is opened via the Notification, and not from the recent activities list?

Answer 1

Looks like I can check to see if the Activity was launched from the recent activities dialog with this:

if((getIntent().getFlags() & 
        Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY) != 0) {
    // ignore extras
}
else {
    // do not ignore extras
}

I don't know if this is the best way, but it does work.

Answer 2

Use a different Intent. For example, you could add an <intent-filter> for some custom action string, and use that for your Notification-based PendingIntent. In other words, you can't change the most-recent activities dialog, but you can change your side of the conflict.

Answer 3

Try with:

int NOTIFICATION_CODE = 1;

PendingIntent contentIntent = 
          PendingIntent.getActivity(this, 
                                    NOTIFICATION_CODE, 
                                    ni,
                                    PendingIntent.FLAG_UPDATE_CURRENT | 
                                    PendingIntent.FLAG_ONE_SHOT
                                   );

Change NOTIFICATION_CODE value for every notification.