组动画 CAAnimationGroup

最新推荐文章于 2016-06-21 10:02:51 发布

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本文介绍如何使用Core Animation中的组动画CAAnimationGroup实现平移、缩放和旋转动画的组合效果。通过Objective-C代码示例，展示了创建并应用这些动画的具体步骤。

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//
//  ViewController.m
//  组动画 CAAnimationGroup
//
//  Created by 陆巧怡 on 15/7/31.
//  Copyright (c) 2015年 Simon. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()

@property (strong, 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 *)touches withEvent:(UIEvent *)event{
    
    
    //平移动画
    CABasicAnimation *moveAnima = [CABasicAnimation animation];
    moveAnima.keyPath = @"transform.translation.y";
    moveAnima.toValue = @(100);
    
    //缩放缩放
    CABasicAnimation *scaleAnima = [CABasicAnimation animation];
    scaleAnima.keyPath = @"transform.scale";
    scaleAnima.toValue = @(0.0);
    
    //旋转动画
    CABasicAnimation *rotationAnima = [CABasicAnimation animation];
    rotationAnima.keyPath = @"transform.rotation";
    rotationAnima.toValue = @(M_PI_2);
    
    
    //组动画
    CAAnimationGroup *groupAnima = [CAAnimationGroup animation];
    groupAnima.duration = 3.0;
    
    groupAnima.animations = @[moveAnima,scaleAnima,rotationAnima];
    
    
    
    [self.imageView.layer addAnimation:groupAnima forKey:nil];
    
}

@end