title: requestlayout, invalidate behaviour
body: <p>hat is the correct way to make the changes visible onscreen after having programatically changed the font of some TextView's Paint objects  ?</p>
  
  <pre><code>@Override
  protected void onResume()
  {
      super.onResume();
      mMainController.grads(mLytHowToPlay, true, FaceTypes.FACEIT, GradTypes.NONE, 8);
      mLytHowToPlay.requestLayout();
          mLytHowToPlay.invalidate();
  }
  </code></pre>
  
  <p>The grads() method call above is the one that recursively treats mLytHowToPlay's children and makes changes to their Paint objects. I have also tried this sequence from onCreate() and onStart() with the same effect - changes are not made visible until the Activity gets navigated away from and then navigated back to again.</p>
  
  <p>Thank you!</p>