Browsers are single threaded. If it was the case that your onModuleLoad was
actually taking a long time, then the browser wouldn't be doing anything
else. If that's the case, then try breaking up your onModuleLoad into
several parts & then do:
enum StartupTask {
TASK1:
TASK2:
TASK3:
}
DeferredCommand.addCommand(new IncrementalCommand() {
StartupTask current = StartupTask.TASK1;
public boolean execute() {
switch (current) {
case TASK1:
// do my initialization
current = TASK2;
break;
case TASK2:
// continue intialization
current = TASK3:
case TASK3:
// finish initialization
current = null;
}
return current != null;
}
});
That's one way to do it. Or you could add a bunch of Command instances
instead of using incremental command. Any number of ways to do this. Are
you sure though that your onModuleLoad takes a long time?
Try instrumenting it first:
public void onModuleLoad()
{
long start = System.currentTimeMillis();
// rest of code
long elapsed = System.currentTimeMillis() - start;
Window.alert("Initialization took " + elapsed + " milliseconds");
}
On Fri, Apr 10, 2009 at 9:05 PM, Nick <[email protected]> wrote:
>
> I've created a GWT project and included a div tag with an animated gif
> in it. The idea is, while my GWT application loads, you'll see this
> image moving because it is included in the static HTML file. When the
> onModuleLoad() function is almost done, I remove this div from the
> DOM, thus removing the image.
>
> My problem is, the GIF image freezes and doesn't move while my
> application is loading. The image only moves if there is a problem in
> my app and it never loads.
>
> Is there a way to include a moving image, a GIF, while the onModuleLoad
> () function is running? I'm not sure why it is freezing.
>
> I look forward to a creative answer.
>
> Thanks,
> Nick
>
> >
>
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