I am pretty new to IOS animation programming.
I wanna create an animation like this on an UIButton:
first scale up in 0.3 second,
then scale down back to normal in 0.2 second.
Can some one show me or guide me to the right direction?
Sample Code :
[UIView animateKeyframesWithDuration:0.5 delay:0.0 options:UIViewKeyframeAnimationOptionRepeat animations:^{
[UIView addKeyframeWithRelativeStartTime:0.0 relativeDuration:0.60 animations:^{
myButton.transform = CGAffineTransformMakeScale(2.0, 2.0);
}];
[UIView addKeyframeWithRelativeStartTime:0.60 relativeDuration:0.40 animations:^{
myButton.transform = CGAffineTransformIdentity;
}];
} completion:^(BOOL finished) {
NSLog(#"Completed");
}];
You can also use native animation pulse in it.
var pulseAnimation:CABasicAnimation = CABasicAnimation(keyPath: "transform.scale");
pulseAnimation.duration = 1.0;
pulseAnimation.toValue = NSNumber(float: 1.5);
pulseAnimation.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseInEaseOut);
pulseAnimation.autoreverses = true;
pulseAnimation.repeatCount = FLT_MAX;
self.Outlet.layer.addAnimation(pulseAnimation, forKey: nil)
Related
I have a UILabel and each time it touched, it'll scaled with CGAffineTransformMakeScale and animation, then back to real size with animation. Now if it touched before last animation ends, it'll scale the scaled object not the real size of main object and so it'll scaled more than it should to be scale. How to prevent this problem ? I want to second touch before last scale ending scale the main size of object.
Here is My Code :
(void)MyLabelTouched
{
[UIView animateWithDuration:.15 animations:^{
MyLabel.transform = CGAffineTransformMakeScale(1.5,1.5);
} completion:^(BOOL finished) {
[UIView animateWithDuration:.15 animations:^{
MyLabel.transform = CGAffineTransformIdentity;
}];
}];
}
Try this
(void)MyLabelTouched
{
if(animRunning){return;}
animRunning = YES;
[ MyLabel.layer removeAllAnimations];
MyLabel.transform = CGAffineTransformIdentity;
[UIView animateWithDuration:.15 animations:^{
MyLabel.transform = CGAffineTransformMakeScale(1.5,1.5);
} completion:^(BOOL finished) {
[UIView animateWithDuration:.15 animations:^{
MyLabel.transform = CGAffineTransformIdentity;
animRunning = NO;
}];
}];
}
I am trying to scale a button up and down to call attention to it.
I have tried two animation methods:
method 1
CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:#"transform.scale"];
animation.autoreverses = YES;
animation.repeatDuration = 2;
animation.duration = 0.4;
animation.fromValue = #(1.0f);
animation.toValue= #(1.2f);
[button.layer addAnimation:animation forKey:#"scale"];
method 2
CGAffineTransform scaleUp = CGAffineTransformMakeScale(1.2f, 1.2f);
[UIView animateWithDuration:0.5 delay:1 options:UIViewAnimationOptionAutoreverse
animations:^{
[button setTransform:scaleUp];
} completion:^(BOOL finished) {
}];
Same problem with both animations. Near the end, when the button is scaling down to its normal scale, the animation jumps directly to scale 1.0.
Something like:
1.2 ... 1.18 ... 1.15 ... boom ... 1.0
and I see the button popping from one huge scale value to 1, instead of being smooth.
You need to set the final state of the button.In your case,the scale change like
1.0->1.1->1.2->1.1->1.0 ->1.2(jump to final state)
Gif
CGAffineTransform scaleUp = CGAffineTransformMakeScale(1.5f, 1.5f);
[UIView animateWithDuration:0.5 delay:1 options:UIViewAnimationOptionAutoreverse
animations:^{
[self.button setTransform:scaleUp];
} completion:^(BOOL finished) {
self.button.transform = CGAffineTransformIdentity;
}];
I am trying to add a bounce effect to the animation below. Here is my code:
[UIView animateWithDuration:1.0
delay:.0
usingSpringWithDamping:0.5
initialSpringVelocity:2.0
options:UIViewAnimationOptionCurveEaseOut
animations:^{
// Coming from a value of CGAffineTransformMakeScale(0.001, 1.0)
self.myView.transform = CGAffineTransformMakeScale(1.0, 1.0);
}completion:nil
];
It's not working correctly. It becomes wider at the end of the animation then it goes back to normal. I want the width to bounce to a lesser value than 1.0, not more than 1.0.
ust for future code reuse and keeping code clean
popUp.transform = CGAffineTransformScale(CGAffineTransformIdentity, 0.001, 0.001);
[self.view addSubview:popUp];
[UIView animateWithDuration:0.3/1.5 animations:^{
popUp.transform = CGAffineTransformScale(CGAffineTransformIdentity, 1.1, 1.1);
} completion:^(BOOL finished) {
[UIView animateWithDuration:0.3/2 animations:^{
popUp.transform = CGAffineTransformScale(CGAffineTransformIdentity, 0.9, 0.9);
} completion:^(BOOL finished) {
[UIView animateWithDuration:0.3/2 animations:^{
popUp.transform = CGAffineTransformIdentity;
}];
}];
}];
A Detailed explanation of UIView bounce animation is given in this post,both by UIDynamicAnimator and spring Animation
How to create a UIView bounce animation?
How to move continuously spinning UIView with animation blocks? Eg., I have this code for spinning:
- (void)spinView:(UIView *)view {
[UIView animateWithDuration:0.2f
delay:0.0f
options:UIViewAnimationOptionCurveLinear
animations:^{
view.transform = CGAffineTransformRotate(view.transform, M_PI_2);
}
completion:^(BOOL finished) {
if (finished) {
[self spinView:view];
}
}];
}
How to combine it with animation like this:
[UIView animateWithDuration:4.0f animations:^{
myView.transform = CGAffineTransformTranslate(myView.transform, 400, 0);
}];
I've tried with CGAffineTransformConcat(), UIViewAnimationOptionBeginFromCurrentState, but without success.
Have you try something like,
[UIView animateWithDuration:2.0f animations:^{
vw.transform = CGAffineTransformTranslate(vw.transform, 400, 0);
CABasicAnimation* animation = [CABasicAnimation animationWithKeyPath:#"transform.rotation.z"];
animation.fromValue = [NSNumber numberWithFloat:0.0f];
animation.toValue = [NSNumber numberWithFloat: 2*M_PI];
animation.duration = 5.0f;
animation.repeatCount = 1;
[vw.layer addAnimation:animation forKey:#"SpinAnimation"];
}];
vw is your view to move. set frame according to your wish.
I have the following animation:
CATransform3D scaleTransform = CATransform3DMakeScale(0.1,0.1, 1.0);
scaleAnimation.toValue = [NSValue valueWithCATransform3D:scaleTransform];
keyframeAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn];;
where I'm scaling down a subview. But I'm trying to do opposite. start from .01% of the size of the subview and go to 100% of the size of the subview. Does anyone knows how can I do this?
Do this:
yourSubView.transform = CGAffineTransformMakeScale(0.01, 0.01);
[UIView animateWithDuration:0.4 delay:0 options:UIViewAnimationOptionCurveEaseOut animations:^{
//change time duration according to requirement
// animate it to the identity transform (100% scale)
yourSubView.transform = CGAffineTransformIdentity;
} completion:^(BOOL finished){
// if you want to do something once the animation finishes, put it here
}];