We can add animation to view using CABasicAnimation. Here we are adding bounce effect to UIImageView.

The following code will show the bounce effect in the UIImageView at y-axis:-

CGPoint origin = self.imgView.center;    // self.imgView is the outlet on UIImageView
    
CGPoint target = CGPointMake(self.imgView.center.x, self.imgView.center.y+100);
    
CABasicAnimation *bounce = [CABasicAnimation animationWithKeyPath:@"position.y"];
    
bounce.duration = 0.5;

bounce.fromValue = [NSNumber numberWithInt:origin.y];
  
bounce.toValue = [NSNumber numberWithInt:target.y];

bounce.repeatCount = 3;

bounce.autoreverses = YES;

[self.imgView.layer addAnimation:bounce forKey:@"position"];

In the above code we are setting the bounce position along the y-axis. We also set the duration for the bounce and the count for the image to bounce i.e how many times the UIImage will bounce .

We can also set the bounce effect of UIImageView along x-axis as :-

CGPoint origin = self.imgView.center;
  
CGPoint target = CGPointMake(self.imgView.center.x-100, self.imgView.center.y);

CABasicAnimation *bounce = [CABasicAnimation animationWithKeyPath:@"position.x"];

bounce.duration = 0.5;    

bounce.fromValue = [NSNumber numberWithInt:origin.x];

bounce.toValue = [NSNumber numberWithInt:target.x];

bounce.repeatCount = 3;

bounce.autoreverses = YES;

[self.imgView.layer addAnimation:bounce forKey:@"position"];

Note :- We also have to include QuartzCore framework in our project !!