how to finish all activities except the first activity?

Question

I google it but even if i run this code below it didnt finish the other activities.

ButtonClick.setOnClickListener(new OnClickListener() {         @Override         public void onClick(View view) {             LoginManager.getInstance().ctrl = false;             UserManager.getInstance().loginControl();             OrderManager.getInstance().orderCtrl = false;             Intent intent = new Intent(OrderComplete.this,                     MainActivity.class);             intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);             intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);             startActivity(intent);             finish();         }     }); } 

Answer 1

To clear top activities from stack use below code

Intent intents = new Intent(A.this, B.class); intents.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK             | Intent.FLAG_ACTIVITY_CLEAR_TOP             | IntentCompat.FLAG_ACTIVITY_CLEAR_TASK); startActivity(intents); finish(); 

It will delete all activities from stack either asynctask run or not in the application.

It works fine and also a good approach

Answer 2

when your going from one activity to other activity call finish();

do like this

public void onClick(View v) {   Intent i = new Intent(A.this,B.class);    i.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);   startActivity(i);   finish(); // to end the current activity  } 

call finish() after startactivity(...), so that A activity ll removed from the stack. when you press back button A activity ll be not there in stack.