Java Development

[liptaka]

Hello,

I would like to ask for your suggestion for the follwing problem.

I have a midlet using LWUIT for BB 9900 with OS7.1.

Inside the midlet I try to use the following:

- after startup, display a "loader" page with loader animation, and during the midlet is doing some actions

- right after  I display another page (secondForm)

My problem is that the foirst laoder page disappears very fast...almost it can not be seen at all.

What I did is the following:

private delay del;

Thread delayThread = new Thread(del);

...

...

loaderform.show();

delayThread.start();

..

..

private class delay implements Runnable {

public void run()

{ 

   try{  

    Thread.sleep(3000)

}catch (InterruptedException e)

{}

   secondForm.show();

}

}

The result is not ok. It seems the Sleep() does not work at all. There is no any delay, immediately I get

the second form appearing.

Do anybody have some idea what can be the problem?

Thanks in advance for any comments,

[maadani]

Hi,

Your delay thread actually sleeps but it does not affect the UI thread.

You don't need to put any thread to sleep.

First, display your form with the animation:

loaderform.show();

Then, inside your loader form schedule a timer task to run after X seconds (check docs for Timer & TimerTask).

Your timer task would run after X seconds and will show the second form:

secondForm.show();

Hope that helps,

E.

[Hithredin · Accepted solution]

Even easier, use this:

UiApplication.getUiApplication().invokeLater( yourRunnable, 3000);

[Eugen]

Just my five cents.

I would try to avoid splash screens if you really can achive it.

Because of user perception 

[tklanilkumar]

Hi liptaka, I want to use LWUIT for MIDLETS nd you mentioned that you used that tool. So can you suggest me can I use this tool in eclipse other than netbeans.

[liptaka]

Hello tklanilkumar,

I also started to work in eclipse, but I was not successful with LWUIT. Simply somehow I was not able to make the blackberryport.jar included into the final .cod file. It is a generic problem of any external jars as far as I know.

I have read several posts on this topic, but finally I could not make it work.

So rather I started to use netbeans instead.

It is not so nice, after compilation I have to use the blackberry tools (rapc, jarsigner, etc), but it works.

br,

[liptaka]

Hello maadani,

i have tried what you suggested, but it seems does not work (result is the same, no any delay..):

inside my initForm() method of loaderform:

...

...

this.show();

timer = new Timer();
timertask = new MyTimerTask();
timer.schedule(timertask, 3000);

}

...

....

private class MyTimerTask extends TimerTask{ 
   public void run()
         {  
                            secondform.show();
         }
   
    }

I really do not understand why it doe snot work. The secondform.show() should be called only after the delay....however it is displayed immediately :-(

[liptaka]

This method works!!! Thank you very much!!