iPhone的动画效果类型及实现方法
实现iphone漂亮的动画效果主要有两种方法,一种是UIView层面的,一种是使用CATransition进行更低层次的控制,
第一种是UIView,UIView方式可能在低层也是使用CATransition进行了封装,它只能用于一些简单的、常用的效果展现,这里写一个常用的示例代码,供大家参考。
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- [UIView beginAnimations:@
"Curl"context:nil];//动画开始
- [UIView setAnimationDuration:0.75];
[UIView setAnimationDelegate:self];
- [UIView setAnimationTransition:UIViewAnimationTransitionCurlUp forView:myview cache:YES];
[myview removeFromSuperview];
- [UIView commitAnimations];
[UIView
beginAnimations:@"Curl"context:nil];//动画开始[UIView
setAnimationDuration:0.75];[UIView setAnimationDelegate:self];[UIView
setAnimationTransition:UIViewAnimationTransitionCurlUp forView:myview
cache:YES];[myview removeFromSuperview];[UIView commitAnimations];
第二种方式相对复杂一些,但如果更好的进行控制,还是使用这种方法吧,基本使用方法可以看一下如下例子:
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- [animation setDuration:1.25f]; [animation setTimingFunction:[CAMediaTimingFunction
- functionWithName:kCAMediaTimingFunctionEaseIn]]; [animation setType:kCATransitionReveal];
- [animation setSubtype: kCATransitionFromBottom]; [self.view.layer addAnimation:animation forKey:@
- CATransition *animation = [CATransition animation];
"Reveal"];
CATransition
*animation = [CATransition animation];[animation
setDuration:1.25f];[animation
setTimingFunction:[CAMediaTimingFunctionfunctionWithName:kCAMediaTimingFunctionEaseIn]];[animation
setType:kCATransitionReveal];[animation setSubtype:
kCATransitionFromBottom];[self.view.layer addAnimation:animation
forKey:@"Reveal"];
这里使用了setType与setSubtype组合,这使用个比较保险,因为他的参数就是官方API里定义的,他们的参数说明可以参考如下:
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- setType:可以返回四种类型:
- kCATransitionFade淡出 kCATransitionMoveIn覆盖原图
- kCATransitionPush推出 kCATransitionReveal底部显出来
- setSubtype:也可以有四种类型: kCATransitionFromRight;
- kCATransitionFromLeft(默认值) kCATransitionFromTop;
- kCATransitionFromBottom
setType:
可以返回四种类型:kCATransitionFade淡出kCATransitionMoveIn覆盖原图kCATransitionPush推出
kCATransitionReveal底部显出来setSubtype:也可以有四种类
型:kCATransitionFromRight;kCATransitionFromLeft(默认
值)kCATransitionFromTop;kCATransitionFromBottom
还有一种设置动画类型的方法,不用setSubtype,只用setType
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- [animation setType:@
"suckEffect"];
[animation setType:@"suckEffect"];
这里的suckEffect就是效果名称,可以用的效果主要有:
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- pageCurl 向上翻一页
- pageUnCurl 向下翻一页 rippleEffect 滴水效果
- suckEffect 收缩效果,如一块布被抽走 cube 立方体效果
- oglFlip 上下翻转效果
pageCurl 向上翻一页pageUnCurl 向下翻一页rippleEffect 滴水效果suckEffect 收缩效果,如一块布被抽走cube 立方体效果oglFlip 上下翻转效果
最后再给出一种常用代码供大家参考。
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// Curl the image up or down
- CATransition *animation = [CATransition animation];
[animation setDuration:0.35];
- [animation setTimingFunction:UIViewAnimationCurveEaseInOut];
if (!curled){
- //animation.type = @"mapCurl";
animation.type = @"pageCurl";
- animation.fillMode = kCAFillModeForwards;
animation.endProgress = 0.99;
- } else {
//animation.type = @"mapUnCurl";
- animation.type = @"pageUnCurl";
animation.fillMode = kCAFillModeBackwards;
- animation.startProgress = 0.01;
}
- [animation setRemovedOnCompletion:NO];
[view exchangeSubviewAtIndex:0 withSubviewAtIndex:1];
- [view addAnimation:animation forKey"pageCurlAnimation"];
// Disable user interaction where necessary
- if (!curled) {
- } else {
- }
curled = !curled;
//
Curl the image up or downCATransition *animation = [CATransition
animation];[animation setDuration:0.35];[animation
setTimingFunction:UIViewAnimationCurveEaseInOut];if
(!curled){//animation.type = @"mapCurl";animation.type =
@"pageCurl";animation.fillMode =
kCAFillModeForwards;animation.endProgress = 0.99;} else
{//animation.type = @"mapUnCurl";animation.type =
@"pageUnCurl";animation.fillMode =
kCAFillModeBackwards;animation.startProgress = 0.01;}[animation
setRemovedOnCompletion:NO];[view exchangeSubviewAtIndex:0
withSubviewAtIndex:1];[view addAnimation:animation
forKey"pageCurlAnimation"];// Disable user interaction where necessaryif
(!curled) { } else { }curled = !curled;

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