如何制作“抖动”动画
如何制作“抖动”动画
提问于 2012-10-03 22:27:52
在我的xcode项目中，我有一个UIImage。我想让它从左到右摇动一下(动画)。我写了这段代码，但是，它不能工作。
-(void)errorShake
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:1.0];
[lockImage setTransform:CGAffineTransformMakeRotation(-5 * M_PI / 180.0)];
[lockImage setTransform:CGAffineTransformMakeRotation(-10 * M_PI / 180.0)];
[lockImage setTransform:CGAffineTransformMakeRotation(-15 * M_PI / 180.0)];
[lockImage setTransform:CGAffineTransformMakeRotation(-20 * M_PI / 180.0)];
[lockImage setTransform:CGAffineTransformMakeRotation(-15 * M_PI / 180.0)];
[lockImage setTransform:CGAffineTransformMakeRotation(-10 * M_PI / 180.0)];
[lockImage setTransform:CGAffineTransformMakeRotation(-5 * M_PI / 180.0)];
[lockImage setTransform:CGAffineTransformMakeRotation(0 * M_PI / 180.0)];
[lockImage setTransform:CGAffineTransformMakeRotation(5 * M_PI / 180.0)];
[lockImage setTransform:CGAffineTransformMakeRotation(10 * M_PI / 180.0)];
[lockImage setTransform:CGAffineTransformMakeRotation(15 * M_PI / 180.0)];
[lockImage setTransform:CGAffineTransformMakeRotation(20 * M_PI / 180.0)];
[lockImage setTransform:CGAffineTransformMakeRotation(15 * M_PI / 180.0)];
[lockImage setTransform:CGAffineTransformMakeRotation(10 * M_PI / 180.0)];
[lockImage setTransform:CGAffineTransformMakeRotation(5 * M_PI / 180.0)];
[lockImage setTransform:CGAffineTransformMakeRotation(0 * M_PI / 180.0)];
[UIView commitAnimations];
}你能告诉我，怎样才能让我的形象动摇吗？
回答 3
Stack Overflow用户
回答已采纳
发布于 2012-10-03 22:29:47
下面是我用来实现这种效果的代码。
-(void)shakeView {
CABasicAnimation *shake = [CABasicAnimation animationWithKeyPath:@"position"];
[shake setDuration:0.1];
[shake setRepeatCount:2];
[shake setAutoreverses:YES];
[shake setFromValue:[NSValue valueWithCGPoint:
CGPointMake(lockImage.center.x - 5,lockImage.center.y)]];
[shake setToValue:[NSValue valueWithCGPoint:
CGPointMake(lockImage.center.x + 5, lockImage.center.y)]];
[lockImage.layer addAnimation:shake forKey:@"position"];
}正如Jere提到的。确保包含导入：
#import <QuartzCore/QuartzCore.h>您也可以将其添加为UIView上的类别。
Stack Overflow用户
发布于 2014-11-18 21:01:18
brynbodayles answer在iOS8下也适用于swift中的摇动动画。
通过导入QuartzCore：
func shakeView(){
var shake:CABasicAnimation = CABasicAnimation(keyPath: "position")
shake.duration = 0.1
shake.repeatCount = 2
shake.autoreverses = true
var from_point:CGPoint = CGPointMake(LoginField.center.x - 5, LoginField.center.y)
var from_value:NSValue = NSValue(CGPoint: from_point)
var to_point:CGPoint = CGPointMake(LoginField.center.x + 5, LoginField.center.y)
var to_value:NSValue = NSValue(CGPoint: to_point)
shake.fromValue = from_value
shake.toValue = to_value
LoginField.layer.addAnimation(shake, forKey: "position")
}Stack Overflow用户
发布于 2018-04-02 15:30:16
func shakeView(_ view: UIView?) {
let shake = CABasicAnimation(keyPath: "position")
shake.duration = 0.1
shake.repeatCount = 2
shake.autoreverses = true
shake.fromValue = NSValue(cgPoint: CGPoint(x: (view?.center.x)! - 5, y: view?.center.y ?? 0.0))
shake.toValue = NSValue(cgPoint: CGPoint(x: (view?.center.x)! + 5, y: view?.center.y ?? 0.0))
view?.layer.add(shake, forKey: "position")
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/12710630
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