今天主要用到的动画类是calayer下的catransition至于各种动画类中如何继承的在这也不做赘述，网上的资料是一抓一大把。好废话少说切入今天的正题。
一.封装动画方法
1.用catransition实现动画的封装方法如下，每句代码是何意思，请看注释之。
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#pragma catransition动画实现
- (void) transitionwithtype:(nsstring *) type withsubtype:(nsstring *) subtype forview : (uiview *) view
{
//创建catransition对象
catransition *animation = [catransition animation];
//设置运动时间
animation.duration = duration;
//设置运动type
animation.type = type;
if (subtype != nil) {
//设置子类
animation.subtype = subtype;
}
//设置运动速度
animation.timingfunction = uiviewanimationoptioncurveeaseinout;
[view.layer addanimation:animation forkey:@"animation"];
}
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代码说明：
catransition常用的属性如下：
duration:设置动画时间
type:稍后下面会详细的介绍运动类型
subtype:和type匹配使用，指定运动的方向，下面也会详细介绍
timingfunction ：动画的运动轨迹，用于变化起点和终点之间的插值计算,形象点说它决定了动画运行的节奏,比如是
均匀变化(相同时间变化量相同)还是先快后慢,先慢后快还是先慢再快再慢.
* 动画的开始与结束的快慢,有五个预置分别为(下同):
* kcamediatimingfunctionlinear 线性,即匀速
* kcamediatimingfunctioneasein 先慢后快
* kcamediatimingfunctioneaseout 先快后慢
* kcamediatimingfunctioneaseineaseout 先慢后快再慢
* kcamediatimingfunctiondefault 实际效果是动画中间比较快.
2.用uiview的block回调实现动画的代码封装
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#pragma uiview实现动画
- (void) animationwithview : (uiview *)view withanimationtransition : (uiviewanimationtransition) transition
{
[uiview animatewithduration:duration animations:^{
[uiview setanimationcurve:uiviewanimationcurveeaseinout];
[uiview setanimationtransition:transition forview:view cache:yes];
}];
}
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3.改变view的背景图，便于切换时观察
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#pragma 给view添加背景图
-(void)addbgimagewithimagename:(nsstring *) imagename
{
self.view.backgroundcolor = [uicolor colorwithpatternimage:[uiimage imagenamed:imagename]];
}
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二.调用上面的方法实现我们想要的动画
1.我们在view上添加多个button,给不同的button设置不同的tag值，然后再viewcontroller中绑定同一个方法，点击不同的button实现不同的页面切换效果。storyboard上的控件效果如下图所示：
2.下面我们就开始编写点击button要回调的方法
(1).定义枚举来标示按钮所对应的动画类型，代码如下：
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typedef enum : nsuinteger {
fade = , //淡入淡出
push, //推挤
reveal, //揭开
movein, //覆盖
cube, //立方体
suckeffect, //吮吸
oglflip, //翻转
rippleeffect, //波纹
pagecurl, //翻页
pageuncurl, //反翻页
camerairishollowopen, //开镜头
camerairishollowclose, //关镜头
curldown, //下翻页
curlup, //上翻页
flipfromleft, //左翻转
flipfromright, //右翻转
} animationtype;
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(2),获取button的tag值：
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uibutton *button = sender;
animationtype animationtype = button.tag;
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(3).每次点击button都改变subtype的值，包括上,左,下,右
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nsstring *subtypestring;
switch (_subtype) {
case :
subtypestring = kcatransitionfromleft;
break;
case :
subtypestring = kcatransitionfrombottom;
break;
case :
subtypestring = kcatransitionfromright;
break;
case :
subtypestring = kcatransitionfromtop;
break;
default:
break;
}
_subtype += ;
if (_subtype > ) {
_subtype = ;
}
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(4),通过switch结合上边的枚举来判断是那个按钮点击的
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switch (animationtype)
{
//各种case,此处代码下面会给出
}
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3.调用我们封装的运动方法，来实现动画效果
(1),淡化效果
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case fade:
[self transitionwithtype:kcatransitionfade withsubtype:subtypestring forview:self.view];
break;
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(2).push效果
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case push:
[self transitionwithtype:kcatransitionpush withsubtype:subtypestring forview:self.view];
break;
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效果如下：
(3).揭开效果：
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case reveal:
[self transitionwithtype:kcatransitionreveal withsubtype:subtypestring forview:self.view];
break;
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效果图如下：
(4).覆盖效果
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case movein:
[self transitionwithtype:kcatransitionmovein withsubtype:subtypestring forview:self.view];
break;
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效果图如下：
(5).立方体效果
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case cube:
[self transitionwithtype:@"cube" withsubtype:subtypestring forview:self.view];
break;
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效果如下：
(6).吮吸效果
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case suckeffect:
[self transitionwithtype:@"suckeffect" withsubtype:subtypestring forview:self.view];
break;
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效果如下：
(7).翻转效果
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case oglflip:
[self transitionwithtype:@"oglflip" withsubtype:subtypestring forview:self.view];
break;
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效果图如下：
8.波纹效果
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case rippleeffect:
[self transitionwithtype:@"rippleeffect" withsubtype:subtypestring forview:self.view];
break;
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(9).翻页和反翻页效果
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case pagecurl:
[self transitionwithtype:@"pagecurl" withsubtype:subtypestring forview:self.view];
break;
case pageuncurl:
[self transitionwithtype:@"pageuncurl" withsubtype:subtypestring forview:self.view];
break;
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(10).相机打开效果
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case camerairishollowopen:
[self transitionwithtype:@"camerairishollowopen" withsubtype:subtypestring forview:self.view];
break;
case camerairishollowclose:
[self transitionwithtype:@"camerairishollowclose" withsubtype:subtypestring forview:self.view];
break;
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(11),调用上面封装的第二个动画方法
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case curldown:
[self animationwithview:self.view withanimationtransition:uiviewanimationtransitioncurldown];
break;
case curlup:
[self animationwithview:self.view withanimationtransition:uiviewanimationtransitioncurlup];
break;
case flipfromleft:
[self animationwithview:self.view withanimationtransition:uiviewanimationtransitionflipfromleft];
break;
case flipfromright:
[self animationwithview:self.view withanimationtransition:uiviewanimationtransitionflipfromright];
break;
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以上内容是针对ios开发中常用的各种动画、页面切面效果的相关介绍，希望对大家有所帮助！