CAKeyframeAnimation

可以给动画添加路径（path）

 CAKeyframeAnimation *anim = [CAKeyframeAnimation animation];
    anim.keyPath = @"position";
    //贝塞尔曲线
    UIBezierPath *path = [UIBezierPath bezierPath];
    //起点
    [path moveToPoint:CGPointMake(50, 50)];
    //连线
    [path addLineToPoint:CGPointMake(300, 50)];
    anim.duration = 0.5;
    //动画保持最后一个状态
    anim.fillMode = kCAFillModeForwards;
    anim.path = path.CGPath;
    //动画执行完不会被自动删除
    anim.removedOnCompletion = NO;
    [self.imageV.layer addAnimation:anim forKey:nil];

给动画设置多个变化的值

CAKeyframeAnimation *anim = [CAKeyframeAnimation animation];
    anim.keyPath = @"transform.rotation";
    anim.values = @[@angleZRad(-5),@angleZRad(5)];
    //自动反转
    anim.autoreverses = YES;
    anim.repeatCount = MAXFLOAT;
    [self.imageV.layer addAnimation:anim forKey:nil];

CABasicAnimation

可以设置动画变化值的起点终点

CABasicAnimation *anim = [CABasicAnimation animation];
    anim.keyPath = @"transform.scale";
    anim.toValue = @0;
    anim.duration = 1;
    //设置自动反转
    anim.autoreverses = YES;
    //设置动画无线执行
    anim.repeatCount = MAXFLOAT;
    [self.imageView.layer addAnimation:anim forKey:nil];

CATransition

设置转场动画
参数type的类型

fade
交叉淡化过渡
不支持过渡方向
对应的常量为kCATransitionFade

push
新视图把旧视图推出去
对应的常量为kCATransitionPush
moveIn
新视图移到旧视图上面
对应的常量为kCATransitionMoveIn
reveal
将旧视图移开显示下边的新视图
对应的常量为kCATransitionReveal
cube
立方体反转效果
oglFlip
上下左右反转效果
suckEffect
收缩效果，如一块布被抽走
不支持过渡方向
rippleEffect
滴水效果
不支持过渡方向
pageCurl
向上翻页效果
pageUnCurl
向下翻页效果
cameraIrisHollowOpen
相机镜头打开效果
不支持过渡方向
cameraIrisHollowClose
相机镜头关闭效果
不支持过渡方向

 //转场代码跟转场动画必须连在一起
    CATransition *anim = [CATransition animation];
    anim.type = @"push";
    self.i++;
    NSString *image = [NSString stringWithFormat:@"%d",self.i];
    self.imageV.image = [UIImage imageNamed:image];
    [self.imageV.layer addAnimation:anim forKey:nil];

CAAnimationGroup

动画组可以同时设置多个动画

CABasicAnimation *anim = [CABasicAnimation animation];
    anim.keyPath = @"position.y";
    anim.toValue = @400;
    
    CABasicAnimation *anim2 = [CABasicAnimation animation];
    anim2.keyPath = @"transform.scale";
    anim2.toValue = @0.5;
    
    CAAnimationGroup *group = [CAAnimationGroup animation];
    group.animations = @[anim,anim2];
    group.removedOnCompletion = NO;
    group.fillMode = kCAFillModeForwards;
    
    [self.imageV.layer addAnimation:group forKey:nil];