How to pass value from activity to frament on backbutton press in android studio

Question

I have fragment, from that fragment i go to 1 activity and do some calculation then i press back button and that value again pass to that fragment so how i can do this?

Possible duplicate of [Send data from activity to fragment in android](https://stackoverflow.com/questions/12739909/send-data-from-activity-to-fragment-in-android) — Hemant Parmar, Jun 07 '18 at 10:24

score 0 · Answer 1 · edited Jun 07 '18 at 10:45

0

Hey you can use onActivityResult() of fragment and in onBackpress() of activity pass the data in setResult().

I hope this will help you.

edited Jun 07 '18 at 10:45

Manish Karena

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answered Jun 07 '18 at 10:28

kundan kamal

674
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score 0 · Accepted Answer · answered Jun 07 '18 at 10:34

When you start activity from fragment you can start as below:-

   startActivityForResult(new Intent(context,NewActivity.class),1);

And when you pressed back button then onBakcPressed method

Intent intent = new Intent();
intent.putExtra("data", "value_here")
setResult(RESULT_OK, intent);

In your fragment override onActivityResult method :-

public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == 1) {
         if(resultCode == RESULT_OK) {
             String strEditText = data.getStringExtra("data");
         }     
    }
}

How to pass value from activity to frament on backbutton press in android studio

2 Answers2