Question

I have an animation that needs to be repeated until I decided to stop it.

How can I stop in animation after a button click?

[UIView animateWithDuration:0.2 delay:0 options:(UIViewAnimationCurveLinear | UIViewAnimationOptionAutoreverse | UIViewAnimationOptionRepeat) animations:^{

        CGAffineTransform transform = CGAffineTransformMakeRotation(DEGREES_TO_RADIANS(5));
        self.transform = transform;

    }  completion:^(BOOL finished){

    }];

Answer 1

U can make use of CABasicAnimation instead.

    CABasicAnimation *appDeleteShakeAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];
appDeleteShakeAnimation.autoreverses = YES;
appDeleteShakeAnimation.repeatDuration = HUGE_VALF;
appDeleteShakeAnimation.duration = 0.2;
appDeleteShakeAnimation.fromValue = [NSNumber numberWithFloat:-degreeToRadian(5)];
appDeleteShakeAnimation.toValue=[NSNumber numberWithFloat:degreeToRadian(5)];
[self.layer addAnimation:appDeleteShakeAnimation forKey:@"appDeleteShakeAnimation"];

Then when u want to stop it you can just call

[self.layer removeAnimationForKey:@"appDeleteShakeAnimation"];