Android Set Text of TextView in Fragment that is in FragmentPagerAdapter

Question

This one is driving me nuts. Basically, I want to create a ViewPager and add a few Fragments to it. Then, all I want to do, it set a value in one of th

Answer 1

The TextView is located in the fragments layout, not in the ViewPagers or the PagerAdapter, that is causing the NPE. Now, you have 2 options.

• The first is the easiest, you should simple move your code for changing the text into the corresponding fragment's class, FragmentA in this case.

• Secondly, you could make the TextView into FragmentA static, so it can be accessed by other classes. So your code would look something like this:

   ....
   TextView myText;
  
   @Override
   public View onCreateView(....) {
  
       myLayout = ....;
  
       myText = myLayout.findViewById(yourID);
  
       ....
  }
  

And then you would change the text from somewhere else (if it's really necessary):

   FragmentA.myText.setText("new text");

Explaining method 2

Use the following in your Fragment.

public static void setText(String text) {
    TextView t = (TextView) getView().findViewById(R.id.someTextView);
    t.setText(text);
}

Then change the text like:

FragmentA.setText("Lulz");