DSBezelActivityView not working - iphone

Question

Here is a piece of code that I'm having problems with:
-(IBAction) nextRegister {
[DSBezelActivityView newActivityViewForView:self.view.superview];
previousPosition = (NSInteger *) currentPosition;
currentPosition = (NSInteger *) ((int)currentPosition + (int) 1 );
[currentRegistry updateOnServer];
[self loadNewRegisterInfos];
[DSBezelActivityView removeViewAnimated:YES];
}
Line by line, here is what this snippet does (or should do):
Show a DSBezelActivityView (from this: http://www.dejal.com/developer/dsactivityview)
Previous position receives actual position (since this will move to the next)
Next is current + 1;
Updates record in server (this takes ~1s)
Loads new record and renders on screen (this takes 1~3s, tops)
This line removes the DSBezelActivityView.
So, when I tap the button to load next record, it is supposed to show the ActivityView, load the data, then update the screen and release the ActivityView.
But what happens is: It freezes the app for 3s, shows and dismisses the activity view in less than a second and then finishes the routine.
What is wrong?
[Edited]
Resolved! Its a thread issue.
Split among 4 methods:
-(IBAction) nextRegister {
[NSThread detachNewThreadSelector:#selector(openActivityView) toTarget:self withObject:nil];
[self viewNextRegister];
[self removeView];
}
-(void)viewNextRegister{
previousPosition = (NSInteger *) currentPosition;
currentPosition = (NSInteger *) ((int)currentPosition + (int) 1 );
[currentRegister setScoreOnServer];
// [NSThread detachNewThreadSelector:#selector(loadRegisterInfo) toTarget:self withObject:nil];
[self loadRegisterInfo];
}
-(void)openActivityView{
[DSBezelActivityView newActivityViewForView:self.view.superview];
}
-(void)removeView {
[DSBezelActivityView removeViewAnimated:YES];
}

Answer 1

Rather than a separate thread which can cause issues if you aren't careful you can also do:
-(void) doNextRegister {
previousPosition = (NSInteger *) currentPosition;
currentPosition = (NSInteger *) ((int)currentPosition + (int) 1 );
[currentRegistry updateOnServer];
[self loadNewRegisterInfos];
[DSBezelActivityView removeViewAnimated:YES];
}
-(IBAction) nextRegister {
[DSBezelActivityView newActivityViewForView:self.view.superview];
[self performSelector:#selector(doNextRegister) withObject:nil afterDelay:0.0];
}