问题 I got a situation like this: Activity A --> B --> C --> D, when D finished, I have to refresh ActivityA to display what I input in ActivityB , ActivityC and ActivityD.Here is my code: ActivityA @OnClick(R.id.btn_one) public void toActivityB(){ Intent intent = new Intent(); intent.setClass(this, ActivityB.class); startActivityForResult(intent, 1); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data);