如何缩放 UIButton 的 imageView? [英] How do I scale a UIButton's imageView?

问题描述

我使用 [UIButton setImage:forState:] 创建了一个名为button"的 UIButton 实例，其中包含一个图像.button.frame 大于图片尺寸.

I created a UIButton instance named "button" with an image using [UIButton setImage:forState:]. The button.frame is larger than the image's size.

现在我想缩小这个按钮的图像.我尝试更改button.imageView.frame、button.imageView.bounds和button.imageView.contentMode，但似乎都无效.

Now I want to scale this button's image smaller. I tried changing button.imageView.frame, button.imageView.bounds and button.imageView.contentMode, but all seem ineffective.

谁能帮我缩放 UIButton 的 imageView?

Can anyone help me scale a UIButton's imageView?

我像这样创建了 UIButton:

UIButton *button = [[UIButton alloc] init];
[button setImage:image forState:UIControlStateNormal];

我尝试像这样缩放图像:

I tried to scale the image like this:

button.imageView.contentMode = UIViewContentModeScaleAspectFit;
button.imageView.bounds = CGRectMake(0, 0, 70, 70);

还有这个:

button.imageView.contentMode = UIViewContentModeScaleAspectFit;
button.imageView.frame = CGRectMake(0, 0, 70, 70);

推荐答案

对于原发帖者，这是我找到的解决方案:

For the original poster, here is the solution I found:

commentButton.contentHorizontalAlignment = UIControlContentHorizontalAlignmentFill;

这将允许您的按钮水平缩放.还有一个垂直设置.

This will allow your button to scale horizontally. There is a vertical setting as well.

我花了几个小时才弄明白(该属性的命名非常不直观)，所以我想分享一下.

Took me several hours to figure that one out (the naming of the property is very unintuitive) so figured I'd share.

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