I have one UIImageView with round image I want to show ripple effect on the image. How can I show ripple effect on UIImageview with animation? Can anyone suggest?
You can use CATransition to show any kind of effect. Here is sample code for it.
CATransition *animation = [CATransition animation];
[animation setDelegate:self];
[animation setDuration:2.0f];
[animation setTimingFunction:UIViewAnimationCurveEaseInOut];
[animation setType:#"rippleEffect" ];
[YOUR_IMAGE_VIEW.layer addAnimation:animation forKey:NULL];
Checkout this apple document, so you will get more idea.
Here is a demo from Jake Chasan about different types of animation.
Related
I am creating an iOS app. I need to show a splash screen with animation when the user open the app. Also i need to go to the next page of the app automatically after animation finished. How is it possible to go to next page of the app directly after animation finished. I am working with objective C.I have written code for the animation.Please help me.Thank you. Following function is used for my aniamtion.
CABasicAnimation *animation =
[CABasicAnimation animationWithKeyPath:#"position"];
[animation setDuration:0.05];
[animation setRepeatCount:8];
[animation setAutoreverses:YES];
[animation setFromValue:[NSValue valueWithCGPoint:
CGPointMake([_image1 center].x - 20.0f, [_image1 center].y)]];
[animation setToValue:[NSValue valueWithCGPoint:
CGPointMake([_image1 center].x + 20.0f, [_image1 center].y)]];
[[_image1 layer] addAnimation:animation forKey:#"position"];
Please refer this Sample code link:- https://github.com/jaysonlane/OpenBook
Hope it will help you to animate Splash screen.
After Launch image. You can make your animated splash screen.
[[_image1 layer] addAnimation:animation forKey:#"position"];
// After add this line
[[_image1 layer] removeAnimationForKey:#"opacity"];
Move to next view controller
It's possible to delay the animation of a CATransition? I tried with startProgressbut it doesn't make any difference.
This is how I'm making the transition:
CATransition *animation = [CATransition animation];
[animation setType:kCATransitionPush];
[animation setSubtype:kCATransitionFromLeft];
[animation setDuration:0.25];
[animation setTimingFunction:[CAMediaTimingFunction functionWithName:
kCAMediaTimingFunctionEaseInEaseOut]];
[animation setRemovedOnCompletion:YES];
[self.tabBarController.view.layer addAnimation:animation forKey:#"pushAnimation"];
Please read this: http://wangling.me/2011/06/time-warp-in-animation.html
It's a good article about additional timing properties of animatios.
I am having a little trouble getting a UiView to animate properly using core animation. Here is my code:
CABasicAnimation* animation = [CABasicAnimation animationWithKeyPath:#"position"];
[animation setFromValue:[NSValue valueWithCGPoint:self.view.layer.position]];
[animation setToValue:[NSValue valueWithCGPoint:CGPointMake(250, self.view.layer.position.y)]]; //I want to move my UIView 250 pts to the right
[animation setDuration:1];
[animation setDelegate:self]; //where self is the view controller of the view I want to animate
[animation setRemovedOnCompletion:NO];
[self.view.layer addAnimation:animation forKey:#"toggleMenu"]; //where self.view returns the view I want to animate
I have also implemented the following delegate method:
-(void)animationDidStop:(CAAnimation *)anim finished:(BOOL)flag{
if(flag)
[self.view.layer setTransform:CATransform3DMakeTranslation(250, 0, 0)]; //set layer to its final position
}
I am trying to make it so that the UIView moves 250 points to the right. However, when the animation is triggered, my view starts to move but the animations seems to end before the view moves 250 points to the right, resulting in the UIView 'teleporting' to its final position. I can't seem to figure out what is causing this behavior.
I have also tried using the UIView method +(void)animateWithDuration:animations: and this approach works perfectly. However, I am trying to achieve a subtle 'bounce' effect and I'd much rather achieve it using the setTimingFunction:functionWithControlPoints: method rather than having multiple callbacks.
Any help and suggestions are appreciated.
Try like this
CABasicAnimation *rotationAnimation;
rotationAnimation = [CABasicAnimation animationWithKeyPath:#"position"];
rotationAnimation.fromValue=[NSValue valueWithCGPoint:CGPointMake([view center].x, [view center].y)];
rotationAnimation.toValue=[NSValue valueWithCGPoint:CGPointMake([view center].x+250, [view center].y)];
rotationAnimation.duration = 1.0+i;
rotationAnimation.speed = 3.0;
rotationAnimation.cumulative = YES;
rotationAnimation.repeatCount = 1.0;
rotationAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut];
[view.layer addAnimation:rotationAnimation forKey:#"position"];
If you are aiming to move your view, your code should go like this:
CABasicAnimation* animation = [CABasicAnimation animationWithKeyPath:#"position"];
[animation setFromValue:[NSValue valueWithCGPoint:self.view.layer.position]];
CGPoint p = self.view.layer.position;
p.x += 250;
self.view.layer.position = p;
[animation setDuration:1];
[animation setRemovedOnCompletion:NO];
[self.view.layer addAnimation:animation forKey:#"toggleMenu"];
You should really change your view's(layer's) position. Otherwise, your view will stay still at its previous position when your animation removed. That's a difference between UIView Animation and Core Animation.
CABasicAnimation* animation = [CABasicAnimation animationWithKeyPath:#"position"];
[animation setFromValue:[NSValue valueWithCGPoint:view.layer.position]];
CGPoint newPosition = CGPointMake(200, 300);
view.layer.position = p;
[animation setDuration:0.5f];
[animation setRemovedOnCompletion:NO];
[group setFillMode:kCAFillModeForwards];
[[view layer] addAnimation:animation forKey:#"position"];
So I want to redraw a rectangle in a view and then transition to it with a fade. This is what I'm using now:
[self setNeedsDisplayInRect:changedRect];
CATransition *animation = [CATransition animation];
[animation setDuration:0.25];
[animation setType:kCATransitionFade];
[[self layer] addAnimation:animation forKey:nil];
This however fades the entire layer. How can I go about fading just changedRect?
Thanks,
Alec
Good Morning everyone,
I'm totally confused with this problem.
I have 3 UIWebViews and what should hapen is webView1 fades in (that works) fades out und WebView2 fades in......
I made it so far with:
CATransition *Animation = [CATransition animation];
[Animation setDuration:4.0];
[Animation setType:kCATransitionFade];
[Animation setSubtype:kCATransitionFade];
[Animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];
transitioning = YES;
if (transitioning) {
[self.webView1.layer addAnimation:Animation forKey:nil];
self.webView1.hidden = YES;
self.webView2.hidden = NO;
can anyone help me with that?
And when it fades in the webView fades from white even the background color is set to an other color!
can't I effect the color?
You should use UIView implicit animations. For instance, a cross fade from webView1 to webView2:
[UIView beginAnimations:#"fade" context:nil];
self.webView1.alpha = 0.0;
self.webView2.alpha = 1.0;
[UIView commitAnimations];
If you wanna execute some code after the animation finished, insert this between begin and commit:
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:#selector(fadeAnimationDidStop:finished:context:)];
and create the didStop method with the signature
- (void)fadeAnimationDidStop:(NSString*)animationID finished:(NSNumber*)finished context:(void*)context`
transition.type =kCATransitionMoveIn;
transition.subtype =kCATransitionFade;