I am using the below code to change the UIImageView's image after a short duration. The images being used are stored in an array as you can see.

The problem is, no matter what 'duration' or 'delay' I set, the imageview changes almost instantly to the last image in the array.

Should I instead be using the main thread to add a delay between each image transition?

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 animationCount = 0;
 imageArray =[NSMutableArray new];
 [imageArray addObject:[UIImage imageNamed:@"gauge1final.png"]];
 [imageArray addObject:[UIImage imageNamed:@"gauge2final.png"]];
 [imageArray addObject:[UIImage imageNamed:@"gauge3final.png"]];
 [imageArray addObject:[UIImage imageNamed:@"gauge4final.png"]];
 [imageArray addObject:[UIImage imageNamed:@"gauge5final.png"]];
 [self multiStageAnimate];

////////////////////////////////////////////////////////////////

-(void) multiStageAnimate{
[UIView animateWithDuration:5.0
                      delay:5.0
                    options:UIViewAnimationOptionTransitionCrossDissolve
                 animations:^
                 {
                     self.gauge.image = [imageArray objectAtIndex:animationCount];
                 }
                 completion:^(BOOL finished){

                     animationCount ++;

                     if(animationCount < imageArray.count){
                         [self multiStageAnimate];
                     }
                     else
                     {
                         animationCount = 0;
                     }
                 }];
}