title: ScrollView scrollTo doesn't work
body: <p>Same issue as <a href="https://stackoverflow.com/questions/3263259/scrollview-scrollto-not-working-saving-scrollview-position-on-rotation">ScrollView .scrollTo not working? Saving ScrollView position on rotation</a></p>
  
  <p>I dynamically add items to scrollView in onCreate. I try the following after all items were added:</p>
  
  <pre><code>    // no effect
      ScrollView mainScroll = (ScrollView) findViewById(R.id.average_scroll_mainScroll);
  
      // no effect
      ScrollView mainScroll = (ScrollView) findViewById(R.id.average_scroll_mainScroll);
      mainScroll.post(new Runnable() {
          public void run(){
              ScrollView mainScroll = (ScrollView) findViewById(R.id.average_scroll_mainScroll);
              mainScroll.scrollTo(0, 0);
          } 
      });
  
      // works like a charm
      ScrollView mainScroll = (ScrollView) findViewById(R.id.average_scroll_mainScroll);
      mainScroll.postDelayed(new Runnable() {
          public void run(){
              ScrollView mainScroll = (ScrollView) findViewById(R.id.average_scroll_mainScroll);
              mainScroll.scrollTo(0, 0);
          } 
      }, 30);
  </code></pre>
  
  <p>I conclude that there is some event like 'DOM-ready'? Are there any callbacks?</p>