entityMap|blocks|key|7ltmd|text|我会这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|711pe|UIButton就是一个UIView。您可以简单地添加一个带有设置图像的UIImageView，并在UIButton上调用addSubview。|offset|length|style|CODE|8f6t9^0|0|0|8|C|6|10|B|1E|8|1P|A|0^^$0|$]|1|@$2|3|4|5|6|7|8|J|9|@]|A|@]|B|$]]|$2|C|4|D|6|7|8|K|9|@$E|L|F|M|G|H]|$E|N|F|O|G|H]|$E|P|F|Q|G|H]|$E|R|F|S|G|H]|$E|T|F|U|G|H]]|A|@]|B|$]]|$2|I|4|-4|6|7|8|V|9|@]|A|@]|B|$]]]]

I would do it this way:

A <code>UIButton</code> is just a <code>UIView</code>. You can simply add a <code>UIImageView</code> with a set image and call <code>addSubview</code> on the <code>UIButton</code>.

entityMap|blocks|key|ele09|text|您可以尝试使用图像视图插入。每个UIButton都有一个属性imageView。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1bsg1|在Swift+3中，你可以这样做：|4n95i|//let+button+=+UIButton()
button.imageView?.backgroundColor+=+UIColor.red
button.imageEdgeInsets+=+UIEdgeInsetsMake(10,+10,+10,+10)|code-block|syntax|javascript|fnd9k|红色背景只是为了让你知道发生了什么变化|d1klt^0|0|0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|M|9|@]|A|@]|B|$]]|$2|C|4|D|6|7|8|N|9|@]|A|@]|B|$]]|$2|E|4|F|6|G|8|O|9|@]|A|@]|B|$H|I]]|$2|J|4|K|6|7|8|P|9|@]|A|@]|B|$]]|$2|L|4|-4|6|7|8|Q|9|@]|A|@]|B|$]]]]

You can experiment with image view insets. Every UIButton has a property imageView.

In Swift 3 you can do this like so:

<pre><code>//let button = UIButton()
button.imageView?.backgroundColor = UIColor.red
button.imageEdgeInsets = UIEdgeInsetsMake(10, 10, 10, 10)
</code></pre>

red background is just so you know what is changing

entityMap|blocks|key|dak3b|text|这可以通过以下方式通过代码完成：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|eai98|++++let+imageSize:CGSize+=+CGSize(width:+20,+height:+20)

++++let+button:UIButton+=+UIButton(type:+UIButton.ButtonType.custom)
++++button.frame+=+CGRect(x:+200,+y:+200,+width:+60,+height:+60)
++++button.backgroundColor+=+UIColor.yellow
++++button.setImage(UIImage(named:+"chat.png"),+for:+UIControl.State.normal)

++++//+The+below+line+will+give+you+what+you+want
++++button.imageEdgeInsets+=+UIEdgeInsets(
++++++++top:+(button.frame.size.height+-+imageSize.height)+/+2,
++++++++left:+(button.frame.size.width+-+imageSize.width)+/+2,
++++++++bottom:+(button.frame.size.height+-+imageSize.height)+/+2,
++++++++right:+(button.frame.size.width+-+imageSize.width)+/+2)

++++self.view.addSubview(button)|code-block|syntax|javascript|3kg8u|这样，你就可以实现你想要的。|249b3^0|0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|K|9|@]|A|@]|B|$]]|$2|C|4|D|6|E|8|L|9|@]|A|@]|B|$F|G]]|$2|H|4|I|6|7|8|M|9|@]|A|@]|B|$]]|$2|J|4|-4|6|7|8|N|9|@]|A|@]|B|$]]]]

This can be done through code in the following way:

<pre><code> let imageSize:CGSize = CGSize(width: 20, height: 20)

 let button:UIButton = UIButton(type: UIButton.ButtonType.custom)
 button.frame = CGRect(x: 200, y: 200, width: 60, height: 60)
 button.backgroundColor = UIColor.yellow
 button.setImage(UIImage(named: "chat.png"), for: UIControl.State.normal)

 // The below line will give you what you want
 button.imageEdgeInsets = UIEdgeInsets(
 top: (button.frame.size.height - imageSize.height) / 2,
 left: (button.frame.size.width - imageSize.width) / 2,
 bottom: (button.frame.size.height - imageSize.height) / 2,
 right: (button.frame.size.width - imageSize.width) / 2)

 self.view.addSubview(button)
</code></pre>

This way, you can achieve what you wanted.

entityMap|blocks|key|25k4|text|考虑到KVISH之前说过的话，我已经实现了这一点，并且它像预期的那样工作。我发布这篇文章是因为霍曼想要一个例子。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|gki1|//grab+the+image+using+the+name+of+the+pic
var+image+=+UIImage(named:+"picture")

//set+the+size+for+the+image
image+=+image?.resize(toWidth:+18)
image+=+image?.resize(toHeight:+18)

//set+the+image+to+the+button
buttonName.setImage(image,+for:+UIControlState.normal)

//adjust+the+position
buttonName.imageEdgeInsets+=+UIEdgeInsetsMake(8,16,9,0)|code-block|syntax|javascript|1scen^0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|I|9|@]|A|@]|B|$]]|$2|C|4|D|6|E|8|J|9|@]|A|@]|B|$F|G]]|$2|H|4|-4|6|7|8|K|9|@]|A|@]|B|$]]]]

Taking into account what KVISH said before i have implemented this and it worked as expected. I posted this because Houman asked for an example.

<pre><code>//grab the image using the name of the pic
var image = UIImage(named: "picture")

//set the size for the image
image = image?.resize(toWidth: 18)
image = image?.resize(toHeight: 18)

//set the image to the button
buttonName.setImage(image, for: UIControlState.normal)

//adjust the position
buttonName.imageEdgeInsets = UIEdgeInsetsMake(8,16,9,0)
</code></pre>

entityMap|blocks|key|5ddpg|text|这些可以通过向UIButton添加imageEdgeInsets来实现。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|18gkf|在swift4.2中|dj64u|++button.imageEdgeInsets+=+UIEdgeInsets(top:+10,+left:+10,+bottom:+10,+right:+10)|code-block|syntax|javascript|46b4j^0|0|0|0^^$0|$]|1|@$2|3|4|5|6|7|8|K|9|@]|A|@]|B|$]]|$2|C|4|D|6|7|8|L|9|@]|A|@]|B|$]]|$2|E|4|F|6|G|8|M|9|@]|A|@]|B|$H|I]]|$2|J|4|-4|6|7|8|N|9|@]|A|@]|B|$]]]]

These can be achieved by adding imageEdgeInsets to a UIButton.

In swift4.2

<pre><code> button.imageEdgeInsets = UIEdgeInsets(top: 10, left: 10, bottom: 10, right: 10)
</code></pre>

entityMap|0|type|IMAGE|mutability|IMMUTABLE|data|imageUrl|https://i.stack.imgur.com/X3QiM.png|imageAlt|blocks|key|auqfl|text|我无法让按钮的imageView调整大小，直到我使用了contentHorizontalAlignment和contentVerticalAlignment，这两个参数都设置为.fill。然后使用imageEdgeInsets重新定位图像。|unstyled|depth|inlineStyleRanges|entityRanges|8fe3d|let+button+=+UIButton()
let+image+=+UIImage(systemName:+"bag.badge.plus")
button.setImage(image,+for:+.normal)
button.contentHorizontalAlignment+=+.fill
button.contentVerticalAlignment+=+.fill
button.imageEdgeInsets+=+UIEdgeInsets(top:+6,+left:+6,+bottom:+10,+right:+10)|code-block|syntax|javascript|dr6ou|结果：|bl89j|​|m844|?|atomic|offset|length|2ic8g|flrc7^0|0|0|0|0|0|1|0|0|0^^$0|$1|$2|3|4|5|6|$7|8|9|-4]]]|A|@$B|C|D|E|2|F|G|Z|H|@]|I|@]|6|$]]|$B|J|D|K|2|L|G|10|H|@]|I|@]|6|$M|N]]|$B|O|D|P|2|F|G|11|H|@]|I|@]|6|$]]|$B|Q|D|R|2|F|G|12|H|@]|I|@]|6|$]]|$B|S|D|T|2|U|G|13|H|@]|I|@$V|14|W|15|B|16]]|6|$]]|$B|X|D|R|2|F|G|17|H|@]|I|@]|6|$]]|$B|Y|D|-4|2|F|G|18|H|@]|I|@]|6|$]]]]

I couldn't get the button's imageView to resize until I used contentHorizontalAlignment and contentVerticalAlignment both set to .fill. Then using imageEdgeInsets I repositioned the image.
<pre><code>let button = UIButton()
let image = UIImage(systemName: &quot;bag.badge.plus&quot;)
button.setImage(image, for: .normal)
button.contentHorizontalAlignment = .fill
button.contentVerticalAlignment = .fill
button.imageEdgeInsets = UIEdgeInsets(top: 6, left: 6, bottom: 10, right: 10)
</code></pre>
Result:
<a href="https://i.stack.imgur.com/X3QiM.png" rel="noreferrer"><img src="https://i.stack.imgur.com/X3QiM.png" alt="enter image description here" /></a>

I have this UIButton and an image to fit in. 
I don't want that the image take all the space inside the button but just a little part of it right in the center, but if I resize the button it will resize the image too.
How can I do that, is there an option to set whatever dimension I want independently from the size of the UIButton?
Thanks!

How to resize an image inside an UIButton programmatically?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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 我有这个UIButton和一张图片。我不想让图片占据按钮内的所有空间，而只是在中间的一小部分，但如果我调整按钮的大小，它也会调整图像的大小。我该怎么做呢?有没有一个选项可以独立于UIButton的大小来设置我想要的任何尺寸？谢谢！ 

问如何以编程方式调整UIButton中图像的大小？
EN

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问如何以编程方式调整UIButton中图像的大小？EN