Initialize element from one fragment into another

Question

I have two fragments attached to my Victoria.

My doubt is, how I initialize an element that is in another fragment?

In a fragment, to access Activity I use the code

Textview tv = getActivity().findViewById(R.id.tv);

this works, but is to start one that is connected to the fragment and not Activity ???

Answer 1

Use Activity as an intermediary between Fragments(fragment and fragmentB).

• Declare a method in the fragment, the one whose Textview you want to change:

  public void setText(String text){
  
      textView.setText(text);
  }
  

• Declare a method in Activity that calls the fragment:

  public void setFragmentATextView(String text){
      fragmentA.setText(text);
  }
  

• In fragmentB call the Activity method:

  getActivity().setFragmentATextView("qualquer coisa");
  

  _{Note: The Activity method call should be made through a interface and not by getActivity().nomeMetodo().}