CABasicAnimation——基本动画
简单的动画效果：
CABasicAnimation *moveAnimation = [CABasicAnimation animationWithKeyPath:@"position.y"];
moveAnimation.duration = 0.8;//动画时间
//动画起始值和终止值的设置
moveAnimation.fromValue = @(self.imageView.center.x);
moveAnimation.toValue = @(self.imageView.center.x-30);
//一个时间函数，表示它以怎么样的时间运行
moveAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn];
moveAnimation.repeatCount = HUGE_VALF;
moveAnimation.repeatDuration = 2;
moveAnimation.removedOnCompletion = NO;
moveAnimation.fillMode = kCAFillModeForwards;
//添加动画，后面有可以拿到这个动画的标识
[self.imageView.layer addAnimation:moveAnimationforKey:@"可以拿到这个动画的Key值"];
keyPath ：要改变的属性名称（传字符串）
fromValue：keyPath相应属性的初始值
toValue：keyPath相应属性的结束值
CAKeyframeAnimation——关键帧动画
CABasicAnimation：只能从一个数值（fromValue）变到另一个数值（toValue）
CAKeyframeAnimation：会使用一个NSArray保存这些数值
CAKeyframeAnimation *animaiton = [CAKeyframeAnimation animationWithKeyPath:@"transform.rotation"];
NSArray *rotationVelues = @[@(M_PI_4), @(-M_PI_4), @(M_PI_4)];
animaiton.values = rotationVelues;
animation.rotationMode = kCAAnimationRotateAuto; //方向
animaiton.duration = 3.0f;
animation.keyTimes = @[@0.2 ,@0.8 ,@1];
animation.path = bezierPath.CGPath;
animaiton.repeatCount = HUGE_VALF; // #define HUGE_VALF 1e50f
[self.imageView.layer addAnimation:animaiton forKey:nil];
UIBezierPath - 贝赛尔曲线
//创建路径
UIBezierPath *bezierPath = [[UIBezierPath alloc] init];
[bezierPath moveToPoint:CGPointMake(0, 450)];
[bezierPath addCurveToPoint:CGPointMake(370, 500) controlPoint1:CGPointMake(350, 200) controlPoint2:CGPointMake(300, 600)]; //一个曲线
//路径样式
CAShapeLayer *shapeLayer = [CAShapeLayer layer];
shapeLayer.path = bezierPath.CGPath;
shapeLayer.fillColor = [UIColor clearColor].CGColor; //填充色<默认黑色>
shapeLayer.strokeColor = [UIColor blueColor].CGColor; //线色
shapeLayer.lineWidth = 2;
[self.view.layer addSublayer:shapeLayer];
转场动画——CATransition
CATransition *caTransition = [CATransition animation];
caTransition.duration = 0.5;
caTransition.delegate = self;
caTransition.timingFunction = [CAMediaTimingFunction functionWithName:@"easeInEaseOut"];//切换时间函数
caTransition.type = kCATransitionReveal;//动画切换风格
caTransition.subtype = kCATransitionFromLeft;//动画切换方向
// 子视图交换位置
//[self.parentView exchangeSubviewAtIndex:0 withSubviewAtIndex:1];
//动画在父视图
[self.parentView.layer addAnimation:caTransition forKey:@"Key"];
UIView中目前最常用的动画方法应该就是这个方法了
UIView中目前最常用的动画方法应该就是这个方法了
+(void)animateWithDuration:(NSTimeInterval)duration animations:(void (^)(void))animations completion:(void (^ nullable)(BOOL finished))completion ;
