How to use “Scheduler.get().scheduleDeferred” the right way in GWT?

[Tom]

Here is my Pseudocode in my GWT app.

-Visible the loading Label
-Loading text from properties file (may take long)
-Invisible the loading Label & Visible the main HTMLPanel

So I want to use Scheduler.get().scheduleDeferred to achive that, here is 
the code:

loadingLabel.setVisible(true);
Scheduler.get().scheduleDeferred(new ScheduledCommand() { 
  @Override
  public void execute() {
   loadingText();
  }
}
loadingLabel.setVisible(false);
mainHTMLPanel.setVisible(true);

But it doesn't work correctly as it did not show the loadingLabel but show 
the mainHTMLPanel immediately & when i click a textbox inside the 
mainHTMLPanel since the Gui got frozen cos it is loading text. Then I have 
to wait for a while to be able to click the textbox inside mainHTMLPanel.

But if i put loadingLabel.setVisible(false); & 
mainHTMLPanel.setVisible(true); insideexecute() Then it works.

But i am not sure that is the right way to do.

So, is the following code the right way to use 
Scheduler.get().scheduleDeferred?

    loadingLabel.setVisible(true);
    Scheduler.get().scheduleDeferred(new ScheduledCommand() { 
      @Override
      public void execute() {
       loadingText();
       loadingLabel.setVisible(false);
       mainHTMLPanel.setVisible(true);
      }
    }

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