Core Animation中的组动画

//
//  ViewController.m
//  Demo02183
//
//  Created by wiseman on 16/2/18.
//  Copyright (c) 2016年 wiseman. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()
{
    CALayer *_layer;
}
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    //自定义一个图层
    _layer=[[CALayer alloc]init];
    _layer.bounds=CGRectMake(0, 0, 10, 20);
    _layer.position=CGPointMake(50, 150);
    _layer.backgroundColor = [UIColor redColor].CGColor;
    [self.view.layer addSublayer:_layer];
    
}

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
    [self groupAnimation];
}

#pragma mark - 组动画
-(void)groupAnimation{
    //1.创建动画组
    CAAnimationGroup *animationGroup=[CAAnimationGroup animation];
    
    //2.设置组中的动画和其他属性
    CABasicAnimation *basicAnimation=[self rotationAnimation];
    CAKeyframeAnimation *keyframeAnimation=[self translationAnimation];
    animationGroup.animations=@[basicAnimation,keyframeAnimation];
    
    animationGroup.delegate=self;
    animationGroup.duration=10.0;//设置动画时间，如果动画组中动画已经设置过动画属性则不再生效
    animationGroup.beginTime=CACurrentMediaTime();//延迟五秒执行
    
    //3.给图层添加动画
    [_layer addAnimation:animationGroup forKey:nil];
}

#pragma mark - 基础旋转动画
-(CABasicAnimation *)rotationAnimation{
    //1.创建基本动画
    CABasicAnimation *basicAnima = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];
    
    //2.
    CGFloat toValue = M_PI_2 * 3;
    basicAnima.toValue = [NSNumber numberWithFloat:toValue];
    basicAnima.autoreverses = true;
    basicAnima.repeatCount = HUGE_VALF;
    basicAnima.removedOnCompletion = YES;
    
    return basicAnima;
}

#pragma mark - 关键帧移动动画
-(CAKeyframeAnimation *)translationAnimation{
    CAKeyframeAnimation *keyframeAnima = [CAKeyframeAnimation animationWithKeyPath:@"position"];
    UIBezierPath *bezierPath = [UIBezierPath bezierPath];
    [bezierPath moveToPoint:CGPointMake(100, 100)];
    [bezierPath addCurveToPoint:CGPointMake(100, 400) controlPoint1:CGPointMake(0, 250) controlPoint2:CGPointMake(200, 250)];
    
    keyframeAnima.path = bezierPath.CGPath;
    
    return keyframeAnima;
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end