fragment access widget from another fragment in the same activity

Question

I want to change the text in text view in fragment1 by clicking a button in fragment2, i managed to do that by declaring the text view as static so i can change the text by Fragment1.textv.setText("hi"); , is that ok and what is the best way to do this.

  static  textv ;
@Override
public View onCreateView(  LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
   final   View v = inflater.inflate(R.layout.fragment_frag_beam_rec, container, false);

    textv= (TextView)v.findViewById(R.id.textview);

           return v;
}

Answer 1

• Most common approach is using interfaces to 'speak' from fragment A to fragment B (you would need to communicate through the activity):

  http://developer.android.com/training/basics/fragments/communicating.html

• You can also use an Event-bus library like Otto, register the fragments that you want to update, and from the other fragment post an update:

  http://square.github.io/otto/

Answer 2

如user3806331所述，您需要使用接口，单击链接即可找到所需的内容。但是请注意，静态引用窗口小部件是一种不好的做法，因为在某些情况下可能会导致内存泄漏。