iOS 属性动画的一个分类:CABasicAnimation 基本动画(没有真正修改属性值)

最新推荐文章于 2024-04-08 10:33:48 发布

原创最新推荐文章于 2024-04-08 10:33:48 发布 · 1.2k 阅读

CC 4.0 BY-SA版权

- (IBAction)pressBasicAnimation:(UIButton *)sender {
    //1.创建并指定修改的属性
    //KeyPath :CALayer的属性名,不是所有的属性都可以,只有在头文件中出现animatable的属性才可以;
//    CABasicAnimation *basic = [CABasicAnimation animationWithKeyPath:@"backgroundColor"];
//    [basic setDuration:2];
    
//    CABasicAnimation *basic = [CABasicAnimation animationWithKeyPath:@"bounds.size.height"];
//    [basic setDuration:2];
    //可以修改属性的属性,例如:bounds.size ,bounds.size.width*********
    CABasicAnimation *basic = [CABasicAnimation animationWithKeyPath:@"bounds"];
    [basic setDuration:30];
    //2.修改CALayer属性值()
//    basic.fromValue = (id)[UIColor redColor].CGColor;
//    basic.toValue = (id)[UIColor orangeColor].CGColor;
//    basic.byValue = (id)[UIColor greenColor].CGColor;
//    basic.fromValue = NSStringFromCGRect(CGRectMake(0, 0, 150, 150));
//    basic.fromValue = @0;
//    basic.toValue = @150;
    basic.fromValue = [NSValue valueWithCGRect:CGRectMake(0, 0, 150, 150)];
    basic.toValue = [NSValue valueWithCGRect:CGRectMake(0, 0, 200, 200)];

    
    
    //3.添加动画(key作业是区分动画)
//    [self.changeView.layer addAnimation:basic forKey:@"changColor"];
    [self.changeView.layer addAnimation:basic forKey:@"changColor"];
}