标签：
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
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;
}
标签：
原文地址：http://www.cnblogs.com/zhanghuifeng/p/4870799.html
