////  ViewController.m//  Core AnimationTest////  Created by apple on 15-3-27.//  Copyright (c) 2015年 apple. All rights reserved.//#import "ViewController.h"@interface ViewController ()@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view, typically from a nib.            }- (IBAction)btnAction:(id)sender {    [self animationOfCAKeyframeAnimationPath];}//动画上下文-(void)animationOfUIKit{    UIView *redView=[[UIView alloc]initWithFrame:CGRectMake(10, 10, 100, 100)];    redView.backgroundColor=[UIColor redColor];        [self.view addSubview:redView];    //开始动画    [UIView beginAnimations:@"test" context:nil];    //动画时长    [UIView setAnimationDuration:1];    /*     *要进行动画设置的地方     */        redView.backgroundColor=[UIColor blueColor];    redView.frame=CGRectMake(50, 50, 200, 200);    redView.alpha=0.5;            //动画结束    [UIView commitAnimations];}//通过代码块-(void)animationOfBlock{    //初始化一个View，用来显示动画    UIView *redView=[[UIView alloc]initWithFrame:CGRectMake(10, 10, 100, 100)];    redView.backgroundColor=[UIColor redColor];        [self.view addSubview:redView];        [UIView animateWithDuration:1 //时长                          delay:0 //延迟时间                        options:UIViewAnimationOptionCurveEaseInOut//动画效果                     animations:^{                                                  //动画设置区域                         redView.backgroundColor=[UIColor blueColor];                         redView.frame=CGRectMake(50, 50, 200, 200);                         redView.alpha=0.5;                                              } completion:^(BOOL finish){                         //动画结束时调用                         //............                     }];        }//CA动画- (void)animationOfCABasicAnimation{    //创建一个CABasicAnimation对象    CABasicAnimation *animation=[CABasicAnimation animation];    //设置颜色    animation.toValue=(id)[UIColor blueColor].CGColor;    //动画时间    animation.duration=1;    //是否反转变为原来的属性值    animation.autoreverses=YES;    //把animation添加到图层的layer中，便可以播放动画了。forKey指定要应用此动画的属性    [self.view.layer addAnimation:animation forKey:@"backgroundColor"];}////关键帧动画CAKeyframeAnimation- (void)animationOfCAKeyframeAnimation{    CAKeyframeAnimation *animation=[CAKeyframeAnimation animation];    //设置属性值    animation.values=[NSArray arrayWithObjects://                      (id)self.view.backgroundColor,                      (id)[UIColor yellowColor].CGColor,                      (id)[UIColor greenColor].CGColor,                      (id)[UIColor blueColor].CGColor,nil];    animation.duration=3;    animation.autoreverses=YES;    //把关键帧添加到layer中    [self.view.layer addAnimation:animation forKey:@"backgroundColor"];}//使用路径制作动画CAKeyframeAnimation- (void)animationOfCAKeyframeAnimationPath{    //初始化一个View，用来显示动画    UIView *redView=[[UIView alloc]initWithFrame:CGRectMake(10, 10, 20, 20)];    redView.backgroundColor=[UIColor redColor];        [self.view addSubview:redView];        CAKeyframeAnimation *ani=[CAKeyframeAnimation animation];    //初始化路径    CGMutablePathRef aPath=CGPathCreateMutable();    //动画起始点    CGPathMoveToPoint(aPath, nil, 20, 20);    CGPathAddCurveToPoint(aPath, nil,                          160, 30,//控制点                          220, 220,//控制点                          240, 380);//控制点            CGPathAddCurveToPoint(aPath, nil,                          160, 30,//控制点                          220, 220,//控制点                          240, 380);//控制点        ani.path=aPath;    ani.duration=10;    //设置为渐出    ani.timingFunction=[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn];    //自动旋转方向    ani.rotationMode=@"auto";        [redView.layer addAnimation:ani forKey:@"position"];}- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}@end