How to close Activities

Question

I have 4 Activities and each one has different objects which can get from server. The main purpose is when I submit final data in activity 4, Activity 1 must be called again. I have tested several methods, backing from D activity to Main activity is easy but I would like to clear all previous Activities too which makes this question different.

At this time I have to close activity B and C. If I just finish activity D and start Activity A in a new intent, the previous Activities are alive and whenever I want to come back from app I can see those activities again. How can I close multiple activities at the same time?

Answer 1

2 lines on Activity D can do the magic.

In your onBackPressed() method of Activity D.

Add theses lines

@Override
     public void onBackPressed() {    
            startActivity(new Intent(Activity_D.this,Activity_A.class));
            finishAffinity();
        }

FinishAffinity will clear all opened Activities. So only Activity A will remained open