bounds方法设置图片大小注意事项

bounds是结构体CGRect需要用CGRect接收而不能用CGSize接收,否则报错:

/Users/peibobo/Desktop/未命名文件夹/buttonAction/buttonAction/ViewController.m:97:12:
Initializing 'CGSize' (aka 'struct CGSize') with an expression of incompatible
type 'CGRect' (aka 'struct CGRect')

    //bouneds方式设置放大动画
    CGRect bounds = self.btnIcon.bounds;
    if (sender.tag == 50) {
        bounds.size.height += 100;
        bounds.size.width += 100;
        [UIView animateWithDuration:1.2 animations:^{
            self.btnIcon.bounds = bounds;
        }];
    }else if(sender.tag == 60){
    
        bounds.size.height -= 100;
        bounds.size.width -=100;
        //传统方式缩小动画
        //开启动画
        [UIView beginAnimations:nil context:nil];
//1.设置动画时间
        [UIView setAnimationDuration:1.2];
//2.执行动画代码包含进去
        self.btnIcon.bounds = bounds;
//3.呈现动画
        [UIView commitAnimations];
    }
    
}

center移动图片以图片中心点为移动中心开始移动,用CGPoint接收

- (IBAction)changeIcon:(UIButton *)sender {
    CGPoint originalIcon = self.btnIcon.center;
//tag 10 20 30 40 分别对应上 右 下 左
    switch (sender.tag) {
        case 10:
            originalIcon.y -= 100;
            self.btnIcon.center = originalIcon;
            break;
        case 20:
            originalIcon.x += 100;
            self.btnIcon.center = originalIcon;
            break;
        case 30:
            originalIcon.y += 100;
            self.btnIcon.center = originalIcon;
            break;
        case 40:
            originalIcon.x -= 100;
            self.btnIcon.center = originalIcon;
            break;
        default:
            break;
    }

frame方式移动以及缩放图片大小(无动画)

- (IBAction)changeIcon:(UIButton *)sender {
    //获取frame--图片位置CGPoint以及尺寸CGSize
    CGRect originalIcon = self.btnIcon.frame;
    //switch...case...选择执行的动作
    //给self.btnIcon.frame从新赋值
    switch (sender.tag) {
        case 10:
            originalIcon.origin.y -=100;
            self.btnIcon.frame = originalIcon;
            break;
        case 20:
            originalIcon.origin.x +=100;
            self.btnIcon.frame = originalIcon;
            break;
        case 30:
            originalIcon.origin.y +=100;
            self.btnIcon.frame = originalIcon;
            break;
        case 40:
            originalIcon.origin.x -=100;
            self.btnIcon.frame = originalIcon;
            break;
        case 50:
            originalIcon.size.width +=100;
            originalIcon.size.height +=100;
            self.btnIcon.frame = originalIcon;
            break;
        case 60:
            originalIcon.size.height -=100;
            originalIcon.size.width -=100;
            self.btnIcon.frame = originalIcon;
            break;
        default:
            break;
    }
    
}