title: how to change look of default zoomcontrol buttons in google map v2?
body: <p>I can access the zoom in and zoom out button of the default zoom controle as follows:</p>
  
  <pre><code>View zoomControls = mapFragment.getView().findViewById(0x1);
  
      for(int i=0;i&lt;((ViewGroup)zoomControls).getChildCount();i++){
          View child=((ViewGroup)zoomControls).getChildAt(i);
          if (i==0) {
              btn_zoomIn = child;
              // there is your "+" button, zoom in
              child.setOnTouchListener(new View.OnTouchListener(){
                  @Override
                  public boolean onTouch(View v, MotionEvent event) {
                      switch (event.getAction()){
                          case MotionEvent.ACTION_DOWN:
                              updateZoom = new ZoomInMapThread();
                              updateZoom.start();
                              break;
                          case MotionEvent.ACTION_UP:
                              updateZoom.interrupt();
                              zoomingIn++;
                              break;
                      }
                      return true;
                  }
              });
          }
          if (i==1) {
              btn_zoomOut = child;
              // there is your "+" button, zoom in
              child.setOnTouchListener(new View.OnTouchListener(){
                  @Override
                  public boolean onTouch(View v, MotionEvent event) {
                      switch (event.getAction()){
                          case MotionEvent.ACTION_DOWN:
                              updateZoom = new ZoomOutMapThread();
                              updateZoom.start();
                              break;
                          case MotionEvent.ACTION_UP:
                              updateZoom.interrupt();
                              zoomingOut++;
                              break;
                      }
                      return true;
                  }
              });
          }
      }
  </code></pre>
  
  <p>Im starting Threads here to update the UI by zooming in or out while a button is pressed. What I want to do next, is change the look of a button, when the user reached the maxZoom/minZoom. Here the code for the zooming in/out threads:</p>
  
  <pre><code>    private class ZoomOutMapThread extends Thread {
      @Override
      public void run(){
          try {
              while (!Thread.currentThread().isInterrupted()){
                  runOnUiThread(new Runnable() {
                      @Override
                      public void run() {
                          currentZoomLevel = currentZoomLevel - 0.1f;
                          if (currentZoomLevel &lt; minZoom){
                              currentZoomLevel = minZoom;
                              btn_zoomIn.setVisibility(View.VISIBLE);
                              btn_zoomOut.setVisibility(View.INVISIBLE);
                          } else {
                              btn_zoomIn.setVisibility(View.VISIBLE);
                              btn_zoomOut.setVisibility(View.VISIBLE);
                          }
                          mMap.animateCamera(CameraUpdateFactory.zoomTo(currentZoomLevel));
                          Log.d("Zoom", "Level:" + currentZoomLevel);
                      }
                  });
                  Thread.sleep(100);
              }
          } catch (InterruptedException consumed) {
              consumed.printStackTrace();
          }
      }
  }
  
  private class ZoomInMapThread extends Thread {
      @Override
      public void run(){
          try {
              while (!Thread.currentThread().isInterrupted()){
                  runOnUiThread(new Runnable() {
                      @Override
                      public void run() {
                          currentZoomLevel = currentZoomLevel + 0.1f;
                          if (currentZoomLevel &gt; maxZoom){
                              currentZoomLevel = maxZoom;
                              btn_zoomIn.setVisibility(View.INVISIBLE);
                              btn_zoomOut.setVisibility(View.VISIBLE);
                          } else {
                              btn_zoomIn.setVisibility(View.VISIBLE);
                              btn_zoomOut.setVisibility(View.VISIBLE);
                          }
                          mMap.animateCamera(CameraUpdateFactory.zoomTo(currentZoomLevel));
                          Log.d("Zoom","Level:"+currentZoomLevel);
                      }
                  });
                  Thread.sleep(100);
              }
          } catch (InterruptedException consumed) {
              consumed.printStackTrace();
          }
      }
  }
  </code></pre>
  
  <p>For now, I am setting it invisible, but instead, i would like to have it be looking like a disabled/non-clickable button. Any idea on how I can do it on a general View like here?</p>