如何制作“摇动”animation

在我的Xcode项目中，我有一个UIImage。 我想让它从左到右晃动（animation）一点点。 我写了这个代码，但是，它不工作。

-(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]; } 

请告诉我，我怎么能让我的形象动摇？

Answer 1

这是我用于这个效果的代码。

  -(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所说。 确保包含导入：

 #import <QuartzCore/QuartzCore.h> 

你也可以把它作为UIView一个类别来添加。

Answer 2

brynbodayles的答案也适用于iOS8下的swiftanimation。

随着QuartzCore的导入：

 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") } 

Answer 3

从电晕答案

在多个button以及视图SWIFT3中给出摇动animation

视图animation只是将扩展UIButton更改为扩展UIView

 extension UIButton { func shakeAnim () { let shake:CABasicAnimation = CABasicAnimation(keyPath: "position") shake.duration = 0.1 shake.repeatCount = 2 shake.autoreverses = true let from_point:CGPoint = CGPoint(x:self.center.x - 5,y: self.center.y) let from_value:NSValue = NSValue(cgPoint: from_point) let to_point:CGPoint = CGPoint(x:self.center.x + 5,y: self.center.y) let to_value:NSValue = NSValue(cgPoint: to_point) shake.fromValue = from_value shake.toValue = to_value self.layer.add(shake, forKey: "position") } }