如何使“摇晃”动画 [英] How to make "shaking" animation
本文介绍了如何使“摇晃”动画的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
在我的xcode项目中,我有一个UIImage。我想让它从左到右摇动(动画)一点点。我编写了这段代码,但是它没有用。
In my xcode project I have an UIImage. I want to make it shaking (animation) from left to right a little bit. I wrote this code, however, its not working.
-(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];
}
请告诉我,我怎么能让我的图像震动?
Could you tell me please, how can I make my image shake ?
推荐答案
以下是我用于此效果的代码。
Here's the code I use for that effect.
-(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"];
}
提到 Jere
。确保包含导入:
As Jere
mentioned. Make sure to include the import:
#import <QuartzCore/QuartzCore.h>
您还可以将其添加为 UIView $ c $的类别c>。
这篇关于如何使“摇晃”动画的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文