UIView animation not performing immediately after the first run. - ios

Question

So basically I have two methods that I run when the user clicks an Annotation in the map.
- (void) methodA{
[UIView animateWithDuration:kRequestButtonAnimationDuration animations:^(void){
self.button.transform = CGAffineTransformMakeTranslation(0,-(self.navigationController.view.frame.size.height - self.button.frame.origin.y)); }]; }
- (void) methodB:(double)value andBoolean:(BOOL) boolean{
if (self.timer) {
[self.timer invalidate];
self.timer = nil;
}
if (boolean) {
self.timer = [NSTimer scheduledTimerWithTimeInterval:value target:self selector:#selector(pullButtonUp) userInfo:nil repeats:NO];
} else{
self.timer = [NSTimer scheduledTimerWithTimeInterval:value target:self selector:#selector(showTabBar) userInfo:nil repeats:NO];
}}
-(void)pullButtonUp{
[(LLTabBarViewController*)self.tabBarController showTabBarAnimated];}
- (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view{
[self methodA];
[self methodB:2.0 andBoolean:TRUE];
}
So during the first time I select an annotation, it works well: it runs methodA, then methodB after 2.0 seconds.
But when I try it again, it runs both A and B at the same time (basically methodA waits 2.0 seconds to execute).
Could this be related to Loops?
How should I track this problem? Any instrument? Which one?
I am a bit lost, help me please!

Answer 1

I think this is what you want to do
- (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view
__weak typeof(self) weakSelf = self;
BOOL arbitraryBool = YES;
[UIView animateWithDuration:2
animations:^{
self.button.transform = CGAffineTransformMakeTranslation(0,-(self.navigationController.view.frame.size.height - self.button.frame.origin.y));
} completion:^(BOOL finished) {
if (finished) {
if (arbitraryBool) {
[weakSelf pullButtonUp];
} else {
[weakSelf showTabBar];
}
}
}]:
}