anima.removedOnCompletion=NO;
//1.3设置保存动画的最新状态
anima.fillMode=kCAFillModeForwards;
//1.4修改属性，执行动画
anima.toValue=[NSValue valueWithCGRect:CGRectMake(0, 0, 200, 200)];
//2.添加动画到layer
[self.myLayer addAnimation:anima forKey:nil];
}
@end
实现效果：
四、旋转动画
代码示例：
复制代码//
// YYViewController.m
// 09-核心动画旋转
//
// Created by apple on 14-6-21.
// Copyright (c) 2014年 itcase. All rights reserved.
//
#import "YYViewController.h"
@interface YYViewController ()
@property(nonatomic,strong)CALayer *myLayer;
@end
复制代码
@implementation YYViewController
- (void)viewDidLoad
{
[super viewDidLoad];
//创建layer
CALayer *myLayer=[CALayer layer];
//设置layer的属性
myLayer.bounds=CGRectMake(0, 0, 150, 60);
myLayer.backgroundColor=[UIColor yellowColor].CGColor;
myLayer.position=CGPointMake(50, 50);
myLayer.anchorPoint=CGPointMake(0, 0);
myLayer.cornerRadius=40;
//添加layer
[self.view.layer addSublayer:myLayer];
self.myLayer=myLayer;
}
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
//1.创建动画
CABasicAnimation *anima=[CABasicAnimation animationWithKeyPath:@"transform"];
//1.1设置动画执行时间
anima.duration=2.0;
//1.2修改属性，执行动画
