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。 button.frame大于图片的大小。

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

现在我想缩小此按钮的图像。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.

任何人都可以帮我缩放 UIButton 的imageView？

Can anyone help me scale a UIButton's imageView?

我创建了 UIButton ，如下所示：

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

我试图像这样缩放图像：

I tried to scale the image like this:

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

这个：

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

推荐答案

对于原始海报，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.

花了我几个小时来计算出那一个（该属性的命名非常非直观）所以想我会分享。

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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