CABasicAnimation基本使用

简介:

CABasicAnimation 自己只有三个property,分别为 fromValue toValue ByValue

当你创建一个 CABasicAnimation 时,你需要通过-setFromValue 和-setToValue 来指定一个开始值和结束值。当你增加基础动画到层中的时候,它开始运行。当用属性做动画完成时,例如用位置属性做动画,层就会立刻返回到它的初始位置

下面是一些继承的属性

Autoreverses

当你设定这个属性为 YES 时,在它到达目的地之后,动画的返回到开始的值,代替了直接跳转到开始的值。

Duration
Duration 这个参数你已经相当熟悉了。它设定开始值到结束值花费的时间。期间会被速度的属性所影响。 RemovedOnCompletion
这个属性默认为 YES,那意味着,在指定的时间段完成后,动画就自动的从层上移除了。这个一般不用。

假如你想要再次用这个动画时,你需要设定这个属性为 NO。这样的话,下次你在通过-set 方法设定动画的属性时,它将再次使用你的动画,而非默认的动画。

Speed

默认的值为 1.0.这意味着动画播放按照默认的速度。如果你改变这个值为 2.0,动画会用 2 倍的速度播放。这样的影响就是使持续时间减半。如果你指定的持续时间为 6 秒,速度为 2.0,动画就会播放 3 秒钟---一半的持续时间。

BeginTime

这个属性在组动画中很有用。它根据父动画组的持续时间,指定了开始播放动画的时间。默认的是 0.0.组动画在下个段落中讨论“Animation Grouping”。

TimeOffset

如果一个时间偏移量是被设定,动画不会真正的可见,直到根据父动画组中的执行时间得到的时间都流逝了。

RepeatCount

默认的是 0,意味着动画只会播放一次。如果指定一个无限大的重复次数,使用 1e100f。这个不应该和 repeatDration 属性一块使用。

RepeatDuration

这个属性指定了动画应该被重复多久。动画会一直重复,直到设定的时间流逝完。它不应该和 repeatCount 一起使用。

一、
我们可以通过animationWithKeyPath键值对的方式来改变动画

animationWithKeyPath的值：

　 transform.scale = 比例轉換

transform.scale.x = 闊的比例轉換

transform.scale.y = 高的比例轉換

transform.rotation.z = 平面圖的旋轉

opacity = 透明度

margin

zPosition

backgroundColor 背景颜色

cornerRadius 圆角

borderWidth

bounds

contents

contentsRect

cornerRadius

frame

hidden

mask

masksToBounds

opacity

position

shadowColor

shadowOffset

shadowOpacity

shadowRadius

二、

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

　　pulse.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut];

pulse.duration = 0.5 + (rand() % 10) * 0.05;

pulse.repeatCount = 1;

pulse.autoreverses = YES;

pulse.fromValue = [NSNumber numberWithFloat:.8];

pulse.toValue = [NSNumber numberWithFloat:1.2];

[self.ui_View.layer addAnimation:pulse forKey:nil];

// bounds
  
　　CABasicAnimation *anim = [CABasicAnimation animationWithKeyPath:@"bounds"];
    anim.duration = 1.f;
    anim.fromValue = [NSValue valueWithCGRect:CGRectMake(0,0,10,10)];
    anim.toValue = [NSValue valueWithCGRect:CGRectMake(10,10,200,200)];
    anim.byValue  = [NSValue valueWithCGRect:self. ui_View.bounds]; 
//    anim.toValue = (id)[UIColor redColor].CGColor;
//    anim.fromValue =  (id)[UIColor blackColor].CGColor;
    anim.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
    anim.repeatCount = 1;
    anim.autoreverses = YES;
    [ui_View.layer addAnimation:anim forKey:nil];
 
//cornerRadius
    CABasicAnimation *anim2 = [CABasicAnimation animationWithKeyPath:@"cornerRadius"];
    anim2.duration = 1.f;
    anim2.fromValue = [NSNumber numberWithFloat:0.f];
    anim2.toValue = [NSNumber numberWithFloat:20.f];
    anim2.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
    anim2.repeatCount = CGFLOAT_MAX;
    anim2.autoreverses = YES;
    [ui_View.layer addAnimation:anim2 forKey:@"cornerRadius"];
 
//contents  
CABasicAnimation *anim = [CABasicAnimation animationWithKeyPath:@"contents"];
    anim.duration = 1.f;
    anim.fromValue = (id)[UIImage imageNamed:@"1.jpg"].CGImage;
    anim.toValue = (id)[UIImage imageNamed:@"2.png"].CGImage;
//    anim.byValue  = (id)[UIImage imageNamed:@"3.png"].CGImage;
//    anim.toValue = (id)[UIColor redColor].CGColor;
//    anim.fromValue =  (id)[UIColor blackColor].CGColor;
    anim.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
    anim.repeatCount = CGFLOAT_MAX;
    anim.autoreverses = YES;
     
    [ui_View.layer addAnimation:anim forKey:nil];
 
 
  //shadowColor
[ui_View.layer setShadowOffset:CGSizeMake(2,2)];
    [ui_View.layer setShadowOpacity:1];
    [ui_View.layer setShadowColor:[UIColor grayColor].CGColor];
 
    CABasicAnimation *anim = [CABasicAnimation animationWithKeyPath:@"shadowColor"];
    anim.duration = 1.f;
    anim.toValue = (id)[UIColor redColor].CGColor;
    anim.fromValue =  (id)[UIColor blackColor].CGColor;
     
    anim.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
    anim.repeatCount = CGFLOAT_MAX;
    anim.autoreverses = YES;
     
    [ui_View.layer addAnimation:anim forKey:nil];
     
    CABasicAnimation *_anim = [CABasicAnimation animationWithKeyPath:@"shadowOffset"];
    _anim.duration = 1.f;
    _anim.fromValue = [NSValue valueWithCGSize:CGSizeMake(0,0)];
    _anim.toValue = [NSValue valueWithCGSize:CGSizeMake(3,3)];
     
    _anim.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
    _anim.repeatCount = CGFLOAT_MAX;
    _anim.autoreverses = YES;
     
    [ui_View.layer addAnimation:_anim forKey:nil];
     
     
    CABasicAnimation *_anim1 = [CABasicAnimation animationWithKeyPath:@"shadowOpacity"];
    _anim1.duration = 1.f;
    _anim1.fromValue = [NSNumber numberWithFloat:0.5];
    _anim1.toValue = [NSNumber numberWithFloat:1];
     
    _anim1.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
    _anim1.repeatCount = CGFLOAT_MAX;
    _anim1.autoreverses = YES;
     
    [ui_View.layer addAnimation:_anim1 forKey:nil];
     
    CABasicAnimation *_anim2 = [CABasicAnimation animationWithKeyPath:@"shadowRadius"];
    _anim2.duration = 1.f;
    _anim2.fromValue = [NSNumber numberWithFloat:10];
    _anim2.toValue = [NSNumber numberWithFloat:5];
     
    _anim2.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
    _anim2.repeatCount = CGFLOAT_MAX;
    _anim2.autoreverses = YES;
     
    [ui_View.layer addAnimation:_anim2 forKey:nil];

三、

几个可以用来实现热门APP应用PATH中menu效果的几个方法

+(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;

}

+(CAAnimationGroup *)groupAnimation:(NSArray *)animationAry durTimes:(float)time Rep:(float)repeatTimes ／／组合动画

{

CAAnimationGroup *animation=[CAAnimationGroup animation];

animation.animations=animationAry;

animation.duration=time;

animation.repeatCount=repeatTimes;

animation.removedOnCompletion=NO;

animation.fillMode=kCAFillModeForwards;

return animation;

}

+(CAKeyframeAnimation *)keyframeAniamtion:(CGMutablePathRef)path durTimes:(float)time Rep:(float)repeatTimes ／／路径动画

{

CAKeyframeAnimation *animation=[CAKeyframeAnimation animationWithKeyPath:@"position"];

animation.path=path;

animation.removedOnCompletion=NO;

animation.fillMode=kCAFillModeForwards;

animation.timingFunction=[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn];

animation.autoreverses=NO;

animation.duration=time;

animation.repeatCount=repeatTimes;

return animation;

}

+(CABasicAnimation *)movepoint:(CGPoint )point ／／点移动

{

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

animation.toValue=[NSValue valueWithCGPoint:point];

animation.removedOnCompletion=NO;

animation.fillMode=kCAFillModeForwards;

return animation;

}

+(CABasicAnimation *)rotation:(float)dur degree:(float)degree direction:(int)direction repeatCount:(int)repeatCount ／／旋转

{

CATransform3D rotationTransform = CATransform3DMakeRotation(degree, 0, 0,direction);

CABasicAnimation* animation;

animation = [CABasicAnimation animationWithKeyPath:@"transform"];

animation.toValue= [NSValue valueWithCATransform3D:rotationTransform];

animation.duration= dur;

animation.autoreverses= NO;

animation.cumulative= YES;

animation.removedOnCompletion=NO;

animation.fillMode=kCAFillModeForwards;

animation.repeatCount= repeatCount;

animation.delegate= self;

return animation;

}

四、捕获动画开始时和终了时的事件

/* 移动 */

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

animation.delegate = self; // 指定委托对象

// 设定动画选项

animation.duration = 2.5; // 动画时长

animation.repeatCount = 1; // 重复次数

// 终点设定

animation.toValue = [NSNumber numberWithFloat:100];; // 终点

// 添加动画

[myView.layer addAnimation:animation forKey:@"move-layer"];

/** * 动画开始时 */

- (void)animationDidStart:(CAAnimation *)theAnimation

{

NSLog(@"begin");

}

/**

* 动画结束时

- (void)animationDidStop:(CAAnimation *)theAnimation finished:(BOOL)flag

{

NSLog(@"end");

}

posted on 2015-10-12 10:05 殇_了阅读(650) 评论(0) 编辑收藏举报

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