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  • 核心动画 (CAAnimationGroup)

    Main.storyboard

    ViewController.m

    //

    //  ViewController.m

    //  8A05.核心动画 CAAnimationGroup

    //

    //  Created by huan on 16/2/5.

    //  Copyright © 2016 huanxi. All rights reserved.

    //

     

    #import "ViewController.h"

     

    @interface ViewController ()

    @property (weak, nonatomic) IBOutlet UIImageView *imageView;

     

    @end

     

    @implementation ViewController

     

    - (void)viewDidLoad {

        [super viewDidLoad];

        // Do any additional setup after loading the view, typically from a nib.

        

        

    }

     

    -(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{

        //有一张图片,同时可以平移、旋转、缩放的效果

        //实现这个效果 使用组动画【CAAnimatonGroup

        //组动画怎么使用

        

        //1.创建对象

        CAAnimationGroup *group = [CAAnimationGroup animation];

        

        //2.往里面添加多个动画

        //2.1 平移动画

        CABasicAnimation *positionAni = [CABasicAnimation animation];

        positionAni.keyPath = @"position";

        positionAni.toValue = [NSValue valueWithCGPoint:CGPointMake(250, 250)];

        //2.2 旋转动画

        CABasicAnimation *rotationAni = [CABasicAnimation animation];

        rotationAni.keyPath = @"transform.rotation";

        rotationAni.toValue = @(M_PI_2);

        

        //2.3 缩放的效果

        CABasicAnimation *scaleAni = [CABasicAnimation animation];

        scaleAni.keyPath = @"transform.scale";

        scaleAni.toValue = @(0.5);

        

        group.duration = 3;

        group.animations = @[positionAni, rotationAni, scaleAni];

        //3.把组动画添加到图层上

        [self.imageView.layer addAnimation:group forKey:nil];

    }

    @end

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  • 原文地址:https://www.cnblogs.com/Lu2015-10-03/p/5191343.html
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