核心动画-07-组动画-day4

 1 //
 2 //  ViewController.m
 3 //  07 CAAnimationGroup
 4 //
 5 //  Created by ZhuJiaCong on 16/4/19.
 6 //  Copyright © 2016年 wxhl. All rights reserved.
 7 //
 8 
 9 #import "ViewController.h"
10 
11 @interface ViewController ()
12 
13 
14 @property (weak, nonatomic) IBOutlet UIView *animationView;
15 
16 @end
17 
18 @implementation ViewController
19 
20 
21 
22 - (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
23     
24     //旋转动画
25     CABasicAnimation *animation1 = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];
26     animation1.fromValue = @0;
27     animation1.toValue = @(M_PI_2);
28     
29     //设置动画时间
30     animation1.duration = 1;
31     //重复旋转动画
32     animation1.repeatCount = HUGE_VALF;
33     
34     
35 //    [_animationView.layer addAnimation:animation1 forKey:nil];
36     
37     //在使用关键帧动画来改变背景颜色时
38     //1 不能使用UIColor，必须使用CGColor
39     //2 不能将CGColor包装为NSValue 需要使用桥接来转化为id类型
40     NSArray *colors = @[(__bridge id)[UIColor redColor].CGColor,
41                         (__bridge id)[UIColor orangeColor].CGColor,
42                         (__bridge id)[UIColor yellowColor].CGColor,
43                         (__bridge id)[UIColor greenColor].CGColor,
44                         (__bridge id)[UIColor cyanColor].CGColor,
45                         (__bridge id)[UIColor blueColor].CGColor,
46                         (__bridge id)[UIColor purpleColor].CGColor
47                         ];
48     
49     CAKeyframeAnimation *animation2 = [CAKeyframeAnimation animationWithKeyPath:@"backgroundColor"];
50     animation2.values = colors;
51     
52     //设置动画时间
53     animation2.duration = 10;
54     //重复旋转动画
55     animation2.repeatCount = HUGE_VALF;
56 
57 //    [_animationView.layer addAnimation:animation2 forKey:nil];
58     
59     
60     //创建动画组
61     CAAnimationGroup *group = [CAAnimationGroup animation];
62     //将动画加入到动画组中去
63     group.animations = @[animation1, animation2];
64     
65     //设置组动画的持续时间
66     group.duration = 10;
67     
68     [_animationView.layer addAnimation:group forKey:nil];
69     
70 }
71 
72 
73 
74 - (void)viewDidLoad {
75     [super viewDidLoad];
76     
77     _animationView.layer.anchorPoint = CGPointMake(0.5, 0.5);
78     
79     
80 }
81 
82 @end