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Return Result From Intent In Android

Example

1. Add a button with the caption ‘NAVIGATE’ in MainActivity.
2. On click of a button, add data in intent and navigate to SecondActivity.

Intent intent = new Intent(getApplicationContext(), SecondActivity.class);
intent.putExtra("name", "karan");
startActivityForResult(intent, 0);




3. In SecondActivity, add a button with the caption ‘NAVIGATE BACK’.
4. On click of the button display the text passed from MainActivity.

if (getIntent().hasExtra("name")) {
  String name = getIntent().getExtras().getString("name");
  Toast.makeText(SecondActivity.this, name, Toast.LENGTH_LONG).show();
}





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5. On click of ‘NAVIGATE BACK’, add the following code

@Override
public void finish() {
  super.finish();
}

public void NavigateBack(View view) {
  Intent intent = new Intent();
  intent.putExtra("name", "Karan-Return value");
  setResult(RESULT_OK, intent);

  finish();
}




6. In the MainActivity, add the following code

@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {

  if (data != null) {
    if (data.hasExtra("name")) {
      Toast.makeText(this, data.getExtras().getString("name"), Toast.LENGTH_LONG).show();
    }
  }
}