When startThreadButtonPressed method is invoked, a new NSThread object is
created and detached with startTheBackgroundJob callback. This method
simples updates the progressbar. [NSThread Example]
- (IBAction) startThreadButtonPressed:(UIButton *)sender {
threadStartButton.hidden = YES;
threadValueLabel.text = @"0";
threadProgressView.progress = 0.0;
[NSThreaddetachNewThreadSelector:@selector(startTheBackgroundJob) toTarget:selfwithObject:nil];
}
- (void)startTheBackgroundJob {
NSAutoreleasePool *pool = [[NSAutoreleasePoolalloc] init];
// wait for 3 seconds before starting the thread, you don't have to do that. This is just an example how to stop the NSThread for some time
[NSThreadsleepForTimeInterval:3];
[selfperformSelectorOnMainThread:@selector(makeMyProgressBarMoving) withObject:nilwaitUntilDone:NO];
[pool release];
}
- (void) makeMyProgressBarMoving{
float actual = [threadProgressViewprogress];
threadValueLabel.text = [NSStringstringWithFormat:@"%.2f", actual];
if (actual < 1) {
threadProgressView.progress = actual + 0.01;
[NSTimerscheduledTimerWithTimeInterval:0.5target:selfselector:@selector(makeMyProgressBarMoving) userInfo:nilrepeats:NO];
}
elsethreadStartButton.hidden = NO;
}
