动画：如何在加载视图时使UIbutton从右向左移动？

Question

到目前为止，我还没有做过iphone开发的任何动画。

任何人可以帮助我如何从正确的做出的UIButton移动视图加载时剩下什么？

我想产生这样的效果：视图加载时，按钮会显示为从右端向左移动&停在原处。可能吗？

关于这部动画的东西任何帮助表示赞赏。如果有的话，请提供一些示例帮助。

在此先感谢。

Answer 1

只是为了使它更滑头，我会建议不改变UIView的框架，但它的中心;

CGPoint newLeftCenter = CGPointMake(20.0f + myButton.frame.size.width/2.0f, myButton.center.y); 
[UIView beginAnimations:nil context:nil]; 
[UIView setAnimationDuration:1.0f]; 
myButton.center = newLeftCenter; 
[UIView commitAnimations]; 

Answer 2

在viewDidAppear

：（BOOL）动画的方法，您可以更改动画块内的按钮的框架。所以你会看到你想要的。检查有关UIView类参考中动画的文档。该simpliest动画块将是这样的（对不起，我没有MAC附近的权利，所以只是复制粘贴后的代码可能无法正常工作）

[UIView beginAnimations:nil context:nil]; 
[UIView setAnimationDuration:1.0f]; 
[myButton setFrame:newFrame]; 
[UIView commitAnimations]; 

Answer 3

从上到下动画

CATransition *animation = [CATransition animation]; 
[animation setDuration:0.4]; 
[animation setType:kCATransitionPush]; 
[animation setSubtype:kCATransitionFromBottom]; 
[animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]]; 
[[TopButton layer] addAnimation:animation forKey:@"SwitchToDown"]; 

Answer 4

/*共用转移亚型。 */

kCATransitionFromRight

kCATransitionFromLeft

kCATransitionFromTop

kCATransitionFromBottom

夫特：

let transition1: CATransition = CATransition() 
    let timeFunc1 : CAMediaTimingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseInEaseOut) 
    transition1.duration = 1.0 
    transition1.timingFunction = timeFunc1 
    transition1.type = kCATransitionPush 
    transition1.subtype = kCATransitionFromRight 
    self.yourBtnORViewRef.layer.addAnimation(transition1, forKey: kCATransition) 

目标C

CATransition *animation = [CATransition animation]; 
[animation setDuration:1.0]; 
[animation setType:kCATransitionPush]; 
[animation setSubtype:kCATransitionFromRight]; 
[animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]]; 
[[self.yourBtnORViewRef layer] addAnimation:animation forKey:@"SwitchToRight"];