CAAnimationGroup(动画组)的简单使用

最新推荐文章于 2025-05-17 13:03:49 发布

幻想无极

最新推荐文章于 2025-05-17 13:03:49 发布

阅读量1k

点赞数

CC 4.0 BY-SA版权

分类专栏： iOS动画

本文链接：https://blog.youkuaiyun.com/u011032334/article/details/43118227

iOS动画专栏收录该内容

6 篇文章

订阅专栏

本文介绍如何利用Core Animation框架中的CABasicAnimation类来实现对象的平移、翻转与透明度动画效果，并通过设置关键参数如关键路径、持续时间、时间间隔、缓动函数等来控制动画的行为。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

- (void)groupAnimation {
    
    //基础属性动画
    //keyPath:属性键路径，通过路径的形式访问对象的指定属性
    //1.平移
    CABasicAnimation *positionAnimation = [CABasicAnimation animationWithKeyPath:@"position"];
    positionAnimation.duration = 0.5;
    // 在哪个时间间隔开始
    positionAnimation.beginTime = 0.0;
    positionAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
    //配置起始位置（fromeVaue）和终止位置（toValue）
    positionAnimation.fromValue = [NSValue valueWithCGPoint:CGPointMake(160, 284)];
    positionAnimation.toValue = [NSValue valueWithCGPoint:CGPointMake(160, 50)];
    //2.翻转
    CABasicAnimation *rotationAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];
    rotationAnimation.duration = 0.5;
    // 在哪个时间间隔开始
    rotationAnimation.beginTime = 0.5;
    rotationAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
    //配置起始位置（fromeVaue）和终止位置（toValue）
    rotationAnimation.fromValue = @(0);
    rotationAnimation.toValue = @(M_PI);// M_PI *2  360'
    
    //3.透明度
    
    CABasicAnimation *opacityAnimation = [CABasicAnimation animationWithKeyPath:@"opacity"];
    opacityAnimation.duration = 0.5;
    // 在哪个时间间隔开始
    opacityAnimation.beginTime = 1.0;
    opacityAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
    //配置起始位置（fromeVaue）和终止位置（toValue）
    opacityAnimation.fromValue = @(1.0);
    opacityAnimation.toValue = @(0.5);
    
    //初始化动画组
    CAAnimationGroup *groupAnimation = [CAAnimationGroup animation];
    groupAnimation.duration = 1.5;
    groupAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
    groupAnimation.animations = @[positionAnimation,rotationAnimation,opacityAnimation];
//    groupAnimation.delegate = self;
    groupAnimation.removedOnCompletion = NO;
    groupAnimation.fillMode =kCAFillModeForwards;
    [self.view.layer addAnimation:groupAnimation forKey:@"group"];
}

补充：需要导入头文件

#import <QuartzCore/QuartzCore.h>