CALyer动画

// ViewController.h
#import 

@interface ViewController : UIViewController


@end

// ViewController.m


#import "ViewController.h"

// 角度转弧度
#define angle2Radio(angle) ((angle) * M_PI / 180.0)

@interface ViewController ()

@property (weak, nonatomic) IBOutlet UIView *redView;

@end

@implementation ViewController

/***
 UIView与核心动画区别?
 1.核心动画只作用在layer.
 2.核心动画看到的一切都是假像.真实值并没有被修改.

 什么时候使用UIVeiw,什么时候使用核心动画
 1. 什么时候使用UIVeiw:当与用户进行交互时,使用UIView.不须要与用户进行交互时, 使用两个都可以.
 2.什么时候使用核心动画:当做帧动画时,转场动画.
 */

- (void)viewDidLoad {
    [super viewDidLoad];
}

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
//    [self startTransformAnimation:self.redView];
//    [self startScaleAnimation:self.redView];
//    [self startHeartBeatAnimation:self.redView];
//    [self startShakeAnimation:self.redView];
//    [self startDrawedRouteAnimation:self.redView];
//    [self startTransitionAnimation:self.redView];
    [self startGroupAnimation:self.redView];
}

// 动画组
- (void)startGroupAnimation:(UIView*)view {
    CAAnimationGroup *groupA = [CAAnimationGroup animation];
    // 移动
    CABasicAnimation *anim = [CABasicAnimation animation];
    anim.keyPath = @"position.y";
    anim.toValue = @300;
    anim.removedOnCompletion = NO;
    anim.fillMode = kCAFillModeForwards;
    [view.layer addAnimation:anim forKey:nil];
    // 缩放
    CABasicAnimation *anim2 = [CABasicAnimation animation];
    anim2.keyPath = @"transform.scale";
    anim2.toValue = @0.5;
    anim2.removedOnCompletion = NO;
    anim2.fillMode = kCAFillModeForwards;
    [view.layer addAnimation:anim2 forKey:nil];
    // 自动执行数组当中的每一个动画对象
    groupA.animations = @[anim, anim2];
    groupA.removedOnCompletion = NO;
    groupA.fillMode = kCAFillModeForwards;
    [view.layer addAnimation:groupA forKey:nil];
}


// 转场动画
- (void)startTransitionAnimation:(UIView*)view {
    // 添加转场动画
    CATransition *anim = [CATransition animation];
    // 设置动画持续时间
    anim.duration = 1;
    //设置转场类型
    anim.type = @"suckEffect";
    [view.layer addAnimation:anim forKey:nil];
}

// 按绘制路线移动
- (void)startDrawedRouteAnimation:(UIView*)view {
    //帧动画
    CAKeyframeAnimation *anim = [CAKeyframeAnimation animation];
    anim.keyPath = @"position";
    anim.duration = 3;
    UIBezierPath *path = [UIBezierPath bezierPath];
    [path moveToPoint:CGPointMake(50, 50)];
    [path addLineToPoint:CGPointMake(200, 50)];
    [path addLineToPoint:CGPointMake(200, 300)];
    anim.path = path.CGPath;

    [view.layer addAnimation:anim forKey:nil];
}

// 图片抖动
- (void)startShakeAnimation:(UIView*)view {
    //帧动画
    CAKeyframeAnimation *anim = [CAKeyframeAnimation animation];
    anim.keyPath = @"transform.rotation";
    anim.values = @[@(angle2Radio(-5)),@(angle2Radio(5)),@(angle2Radio(-5))];

    //设置执行次数
    anim.repeatCount = MAXFLOAT;
    anim.autoreverses = YES;

    [view.layer addAnimation:anim forKey:nil];
}

// 心跳效果
- (void)startHeartBeatAnimation:(UIView*)view {
    // 创建动画对象
    CABasicAnimation *anim = [CABasicAnimation animation];
    anim.keyPath = @"transform.scale";
    // 复位
    anim.toValue = @0;
    // 设置动画的执行次数
    anim.repeatCount = MAXFLOAT;
    // 设置动画的执行时长
    anim.duration = 0.2;
    // 设置自动反转
    anim.autoreverses = YES;
    // 添加动画
    [view.layer addAnimation:anim forKey:nil];
}

// 缩放
- (void)startScaleAnimation:(UIView*)view {
    //初始化动画对象
    CABasicAnimation *anim = [CABasicAnimation animation];
    //设置属性值
    anim.keyPath = @"transform.scale.x";
    anim.toValue = @0.5;
    // 动画完成时会自动删除动画,下面两段代码一起使用，效果才会出现
    anim.removedOnCompletion = NO;
    anim.fillMode = @"forwards";
    //添加核心动画
    [self.redView.layer addAnimation:anim forKey:nil];
}

// 开始旋转
- (void)startTransformAnimation:(UIView*)view {
    CABasicAnimation* rotationAnimation;
    rotationAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];
    rotationAnimation.toValue = [NSNumber numberWithFloat: M_PI * 2.0 ];
    rotationAnimation.duration = 0.5;
    rotationAnimation.cumulative = YES;
    rotationAnimation.repeatCount = MAXFLOAT;

    [view.layer addAnimation:rotationAnimation forKey:@"rotationAnimation"];
}

@end

• 动画效果: