Not to destroy current activity on back button is pressed

Question

I have two activities, A and B. I have a button in A,when pressed starts a new intent to B. However whenever I press the back button while in B, than click the button again is restarts Activity.I do not want to do that,I want it to resume Activity B. Actually I am doing some networking in Activity B and I want to save unless the user wants to refresh. How can I do it? Thanks in advance

Answer 1

Use

@Override
    public void onBackPressed(){
        moveTaskToBack(true);
    }

Hope, It must help you