Differentiating between an Activity launch from home screen or from another activity from App

Question

I need to know a generic way to distinguish between a call of activity from launcher and a call from another activity from inside my app, or a BACK on the activity stack

Answer 1

in 2 cases the onRestart(); called, 1.when activity come from background, 2.when the user reach the activity by back button then sample solution: use onBackPressed() function to set a flag.. so u know that onRestart called becouse of back button press... in onRestart () check the flag and reset it and....