Force application to restart on first activity android

Question

Hi,

For an unknown reason, I can't get my application leaving properly so that when I push the home button and the app icon again I resume where I was in the app.... But I would like to force the application to restart at the first activity... I suppose this has something to do with onDestroy() or maybe onPause() but I don't know what to do. thanks for any help.

Answer 1

if you want to always start at the root you want to set android:clearTaskOnLaunch to true on your root activity

Answer 2

After hard thinking and testing I finally got the right way of calling my activity to recreate when the app is left with the home button :

android:clearTaskOnLaunch in the manifest

+

onRestart(){ onCreate(); }

That does the trick...(better than when it is put in onResume which is called each time you launch the app, even the first time, causing a double display)

Answer 3

Does FLAG_ACTIVITY_CLEAR_TOP do what you need to do?

Intent i = new Intent(getBaseContext(), YourActivity.class);
            i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
            startActivity(i);

Answer 4

Here is an example to restart your app in a generic way by using the PackageManager (which works fine for me):

Intent i = getBaseContext().getPackageManager()
             .getLaunchIntentForPackage( getBaseContext().getPackageNam() );
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(i);