iOS-Senior17-CoreAnimation动画

Posted 2020-07-17 萌萌的周丽娜

1.CABasicAnimation动画

//设置全局变量图片

@property (nonatomic,strong) UIImageView *eyeImage;

//设置圆角(注意：光设置上边一句代码是实现不了效果的，下边的masksToBounds这个属性影响layer层的阴影效果)

self.eyeImage.layer.cornerRadius = 40;

self.eyeImage.layer.masksToBounds = YES;

//设置阴影

//设置layer的阴影颜色

self.eyeImage.layer.shadowColor = [UIColor yellow].CGColor;

//设置layer层的透明度

self.eyeImage.layer.shadowOpacity = 1.0;

//设置阴影的偏移量

self.eyeImage.layer.shadowOffSet = CGSizeMake(-20,10);

//设置阴影的模糊度

self.eyeImage.layer.shadowRadius = 1.0f;

##########自定义layer######################

//创建一个对象

CALayer *layer = [CALayer layer];

//设置对象的位置和大小

layer.frame = CGRectMake(0,280,100,100);

//设置背景颜色

layer.backgroundColor = [UIColor redColor].CGColor;

//layer需要添加到layer层

[self.view.layer addSublayer:layer];

//设置锚点

layer.anchorPoint = CGPointMake(0,0);

//设置大小（位置）

layer.position = CGPointMake(100,100);

CABasicAnimation动画

//第一步：创建动画的对象

CABasicAnimation *basicAnimation = [CABasicAnimation animation];

//第二步：告诉layer层需要执行什么样子的动画[后边设置的内容为CALayer的相关属性]

basicAnimation.keyPath = @"position";

//第三步：告诉从哪里来，到哪里去

basicAnimation.fromValue = [NSValue valueWithCGPoint : CGPointMake(100,100)];

basicAnimation.toValue = [NSValue valueWirhCGPoint : CGPointMake(300,300)];

//注意点：如果要实现移动的位置不回到原来的位置，需要实现以下两句代码

basicAnimation.removeOnCompletion = NO;　　

//设置保存动画状态的内容

basicAnimation.fillMode = KCAFillModeForwards;

//第四步：设置动画持续时长

basicAnimation.duration = 6.0f;

//第五步：将要执行的动画添加到calayer层

[self.eyeImage.layer addAnimation:basicAnimation forKey:@"basic"];

###############翻转效果#######################

CABasicAnimation *basic = [CABasicAnimation animation];

basic.keyPath = @"transform";

//设置翻转到的地方

basic.toValue = [NSValue valueWithCATransform3D:CATransform3DMakeRotation(M_PI_2,0,0,1)];

basic.duration = 0.2f;

[self.eyeImage.layer addAnimation:basic forKey:@"aaa"];

//根据key区移除动画

[self.eyeImage.layer removeAnimationForKey:@"basic"];

 

2.CAKeyFrameAnimation动画

//第一步：创建对象

CAKeyframeAnimation *keyFrameAnimation = [CAKeyframeAnimation animation];

//第二步：设置动画轨迹

keyFrameAnimation.keyPath = @"transform.rotation";

//第三步：设置旋转角度(弧度计算公式：度数/180*M_PI)

keyFrameAnimation.values = @[@(-4/180.0 *M_PI),@(4/180.0 *M_PI),@(8/180 *M_PI)];

//第四步：设置时长

keyFrameAnimation.Duration = 3.0f;

//第五步：添加动画到layer层

[self.eyeImage.layer addAnimation:keyFrameAnimation forKey:@"keyFrameAnimation"];

3.CAAnimationGroup动画

//平移动画

CABasicAnimation *basicAnimation1 = [CABsicAnimation animation];

basicAnimation1.keyPath = @"transform.translation.y";

basicAnimation1.toValue = @(400);

//翻转动画

CABasicAnimation *basicAnimation2 = [CABasicAnimation animation];

basicAnimation2.keyPath = @"transform.scale";

basicAnimation2.toValue = @(0.2);

//旋转动画

CABasicAnimation *baiscAnimation3 = [CABasicAnimation animation];

basicAnimation3.keyPath = @"transform.rotation";

basicAnimation3.toValue = @(M_PI);

//需要创建管理各个动画的动画组

CAAnimationGroup *group = [CAAnimationGroup animation];

group.animations = @[basicAnimation1,basicAnimation2,basicAnimation3];

group.duration = 5.0f;

[self.eyeImage.layer addAnimation:group forKey:@"groupAnimation"];

 

4.CASpringAnimation动画

CASpringAnimation *springAnimation = [CASpringAnimation animation];

springAnimation.keyPath = @"transform.scale";

springAnimation.fromValue = @1;

springAnimation.toValue = @0.25;

springAnimation.duration = 2.0f;

[self.eyeImage.layer addAnimation :springAnimation forKey:@"springAnimation"];