IOS动画之CAAnimation动画

CAAnimation采用了CAMediaTiming协议,可以调整时间,包括持续时间,速度,重复次数;采用了CAAction协议,可以通过响应动作的方式来显示动画.
CAAnimation的一些派生类:
CATransition 提供渐变效果:(推拉push效果,消退fade效果,揭开reveal效果)
CAAnimationGroup 允许多个动画同时播放
CABasicAnimation 提供了对单一动画的实现
CAKeyframeAnimation 关键桢动画,可以定义行动路线
CAConstraint 约束类,在布局管理器类中用它来设置属性
CAConstraintLayoutManager 约束布局管理器,是用来将多个CALayer进行布局的.各个CALayer是通过名称来区分,而布局属性是通过CAConstraint来设置的.
CATransaction 事务类,可以对多个layer的属性同时进行修改.它分隐式事务,和显式事务.

--------------------------CATransition动画---------------------------------

//@"cube" @"moveIn" @"reveal" @"fade"(default) @"pageCurl" @"pageUnCurl" @"suckEffect" @"rippleEffect" @"oglFlip"

{这种动画不设置subtilte

1. pageCurl   向上翻一页  
2. pageUnCurl 向下翻一页  
3. rippleEffect 滴水效果  
4. suckEffect 收缩效果，如一块布被抽走  
5. cube 立方体效果  
6. oglFlip 上下翻转效果

}

transition.type = @"rippleEffect"; /* 各种动画效果*/

CATransition *animation=[CATransition animation];

 animation.delegate=self;
 animation.duration=1.0f;

animation.timingFunction=UIViewAnimationCurveEaseInOut;    

animation.type=kCATransitionMoveIn;

animation.subtype=kCATransitionFromTop;
 [myView.layer addAnimation:animation forKey:@"move in"];

--------------------------CABasicAnimation动画---------------------------------
{

} 

+(CABasicAnimation *)opacityForever_Animation:(float)time／／永久闪烁的动画

{

    CABasicAnimation *animation=[CABasicAnimation animationWithKeyPath:@"opacity"];

    animation.fromValue=[NSNumber numberWithFloat:1.0];

    animation.toValue=[NSNumber numberWithFloat:0.0];

    animation.autoreverses=YES;

    animation.duration=time;

    animation.repeatCount=FLT_MAX;

    animation.removedOnCompletion=NO;

    animation.fillMode=kCAFillModeForwards;

    return animation;

}

+(CABasicAnimation *)opacityTimes_Animation:(float)repeatTimes durTimes:(float)time;／／有闪烁次数的动画

{

    CABasicAnimation *animation=[CABasicAnimation animationWithKeyPath:@"opacity"];

    animation.fromValue=[NSNumber numberWithFloat:1.0];

    animation.toValue=[NSNumber numberWithFloat:0.4];

    animation.repeatCount=repeatTimes;

    animation.duration=time;

    animation.removedOnCompletion=NO;

    animation.fillMode=kCAFillModeForwards;

    animation.timingFunction=[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn];

    animation.autoreverses=YES;

    return  animation;

}

+(CABasicAnimation *)moveX:(float)time X:(NSNumber *)x／／横向移动

{

    CABasicAnimation *animation=[CABasicAnimation animationWithKeyPath:@"transform.translation.x"];

    animation.toValue=x;

    animation.duration=time;

    animation.removedOnCompletion=NO;

    animation.fillMode=kCAFillModeForwards;

    return animation;

}

+(CABasicAnimation *)moveY:(float)time Y:(NSNumber *)y／／纵向移动

{

    CABasicAnimation *animation=[CABasicAnimation animationWithKeyPath:@"transform.translation.y"];

    animation.toValue=y;

    animation.duration=time;

    animation.removedOnCompletion=NO;

    animation.fillMode=kCAFillModeForwards;

    return animation;

}

+(CABasicAnimation *)scale:(NSNumber *)Multiple orgin:(NSNumber *)orginMultiple durTimes:(float)time Rep:(float)repeatTimes／／缩放

{

    CABasicAnimation *animation=[CABasicAnimation animationWithKeyPath:@"transform.scale"];

    animation.fromValue=orginMultiple;

    animation.toValue=Multiple;

    animation.duration=time;

    animation.autoreverses=YES;

    animation.repeatCount=repeatTimes;

    animation.removedOnCompletion=NO;

    animation.fillMode=kCAFillModeForwards;

    return animation;

-----------------------------------------------------2.CAAnimation---------------------------------------------------------------------------------------

需要添加库，和包含头文件

caanimation有多个子类

CABasicAnimation

CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"opacity"];
//@""里的字符串有多种，可以自己找相关资料，一定要填对，动画才会执行 opacity设置透明度 bounds.size设置大小
[animation setFromValue:[NSNumber numberWithFloat:1.0]]; //设置透明度从几开始
[animation setToValue:[NSNumber numberWithFloat:0.3]];//设置透明度到几结束
[animation setDuration:0.1]; //设置动画时间
[animation setRepeatCount:100000];//设置重复时间
[animation setRepeatDuration:4];  //会限制重复次数
[animation setAutoreverses:NO];//设置是否从1.0到0.3 再从0.3到1.0 为一次  如果设置为NO则 1.0到0.3为一次
[animation setRemovedOnCompletion:YES]; //完成时移出动画 默认也是
[view.layer addAnimation:animation forKey:@"abc"];//执行动画

CAKeyframeAnimation

CAKeyframeAnimation *animation = [CAKeyframeAnimation animationWithKeyPath:@"position"];//设置view从初始位置经过一系列点
NSArray *postionAraay = [NSArray arrayWithObjects:[NSValue valueWithCGPoint:CGPointMake(100, 20)], [NSValue valueWithCGPoint:CGPointMake(40, 80)],[NSValue valueWithCGPoint:CGPointMake(30, 60)],[NSValue valueWithCGPoint:CGPointMake(20, 40)],[NSValue valueWithCGPoint:CGPointMake(0, 100)],nil];//设置点
   
NSArray *times = [NSArray arrayWithObjects:[NSNumber numberWithFloat:0.3],[NSNumber numberWithFloat:0.5],[NSNumber numberWithFloat:0.6],[NSNumber numberWithFloat:0.1],[NSNumber numberWithFloat:1.0], nil];  //设置移动过程的时间

[animation setKeyTimes:times];
[animation setValues:postionAraay];
[animation setDuration:5]; //设置动画时间
[bigImage.layer addAnimation:animation forKey:@"dd"]; //执行动画

CATransition

CATransition *animation = [CATransition animation];
animation.duration = 0.5f;
animation.timingFunction = UIViewAnimationCurveEaseInOut;
animation.fillMode = kCAFillModeForwards;
    /*
     kCATransitionFade;
     kCATransitionMoveIn;
     kCATransitionPush;
     kCATransitionReveal;
     */
    /*
     kCATransitionFromRight;
     kCATransitionFromLeft;
     kCATransitionFromTop;
     kCATransitionFromBottom;
     */
animation.type = kCATransitionPush;
animation.subtype = kCATransitionFromBottom;
[view.layer addAnimation:animation forKey:animation];
type也可以直接用字符串
/*
     cube    suckEffect 卷走
     oglFlip    翻转
     rippleEffect  水波
     pageCurl   翻页
     pageUnCurl
     cameraIrisHollowOpen
     cameraIrisHollowClose
-----------------------------------------------------2.CAAnimation---------------------------------------------------------------------------------------