How to close all of the activities of running app and Re-launch a fresh app on click

Question

I'm having the app with multiple screen My App Launch from splash(Launcher)->Home Screen->Child Screen. When User Tap on URL app directly jumps to Child Screen(Application need). But when user tap on URL a new instance of application launched which I don't want. I want to close the the existing app and launch the fresh app with Child Screen. Each activity is having android:launchMode="singleTop"

Answer 1

To launch the fresh Application I found this solution and its working fine for me

Intent intent = new Intent(Firstctivity.this, SecondActivity.class);
intent .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent );
finish();

It will close ongoing Task and create new one for me.. :)