title: in androidx.fragment.app.Fragment，setUserVisibleHint（）is Deprecated，and not executed,why？
body: <pre><code>@Override
  public void setUserVisibleHint(boolean isVisibleToUser) {
      super.setUserVisibleHint(isVisibleToUser);
      if (getUserVisibleHint()) {
          isVisible = true;
          onVisible();
      } else {
          isVisible = false;
          onInVisible();
      }
  }
  </code></pre>
  
  <p>I found that this part of the code is not executed.</p>