[bimetrix]

Hi there,

I was hoping someone could help with a seemingly easy task - but one I can't
figure out!!

I am trying to run some code in my app that goes out & check whether there
is a later version of the software available.

I am running it in a new thread, using the code below. The code fires when the main screen of the app is displayed. The code "works", but
when I run it the screen locks up till the operation is completed. I had
thought by having it in its own Thread that it wouldn't impact the screen (ie I still scroll around the screen).

Does anyone have an idea as to what might be wrong (or a better way to do it)??

Cheers
Shane


------------------------

protected void onDisplay(){

super.onDisplay();

Thread t1 = new Thread(new Runnable() {
public void run() {


UiApplication.getUiApplication().invokeLater(
new Runnable()
{
public void run()
{
UpdateStatusBar("Checking for latest version");
CheckVersion();
UpdateStatusBar("Monitoring . . .");
}
}
);
}
});
t1.start();

}
*/

[hrbuckley]

Originally Posted by bimetrix

Hi there,

I was hoping someone could help with a seemingly easy task - but one I can't
figure out!!

I am trying to run some code in my app that goes out & check whether there
is a later version of the software available.

I am running it in a new thread, using the code below. The code fires when the main screen of the app is displayed. The code "works", but
when I run it the screen locks up till the operation is completed. I had
thought by having it in its own Thread that it wouldn't impact the screen (ie I still scroll around the screen).

Does anyone have an idea as to what might be wrong (or a better way to do it)??

Cheers
Shane


------------------------

protected void onDisplay(){
           
         super.onDisplay();

            Thread t1 = new Thread(new Runnable() {  
                public void run() {
                    
                        
                    UiApplication.getUiApplication().invokeLater(
                    new Runnable()
                        {
                            public void run()
                            { 
                                UpdateStatusBar("Checking for latest version");
                                CheckVersion();
                                UpdateStatusBar("Monitoring . . .");          
                            }
                    }
                    );
                }
            });
            t1.start();  
       
    }

*/

Please read the sticky thread on posting code.

UiApplication.getUiApplication().invokeLater(...) IIRC causes it's runnable to be run on the main event thread. Try removing that and just have your three calls in your thread run method.

[hrbuckley]

Now that I'm back in the office, I can confirm what I said above.

But please do read this thread: How to paste 100% FORMATTED Source Code In Your Forum Posts

It is so much easier to take in the structure of code if it is formatted the way we have all come to expect.

In any case try something like this:

protected void onDisplay(){
           
         super.onDisplay();

            Thread t1 = new Thread(new Runnable() {  
                public void run() {
                    UpdateStatusBar("Checking for latest version");

                     CheckVersion();

                     UpdateStatusBar("Monitoring . . .");          
                }
            });

            t1.start();  
    }

If your UpdateStatusBar method does not hold the event lock, you should surround the calls to it in the thread with synchronized(UiApplication.getEventLock()) like this:

protected void onDisplay(){
           
         super.onDisplay();

            Thread t1 = new Thread(new Runnable() {  
                public void run() {
                    synchronized(UiApplication.getEventLock()) {
                        UpdateStatusBar("Checking for latest version");
                     }

                     CheckVersion();

                    synchronized(UiApplication.getEventLock()) {
                        UpdateStatusBar("Monitoring . . .");
                     }
                }
            });

            t1.start();  
    }

[bimetrix]

Thanks very much for that!!

And thanks for the heads up on posting code examples. Will make sure that they are formatted correctly next time.

Cheers