blocks|key|996799|text|我在UITextArea上尝试了以下解决方案，我希望这也能在UIButton上工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|996800|首先，在你的.m文件中导入这个-|996801|#import+<QuartzCore/QuartzCore.h>|code-block|syntax|javascript|996802|然后在您的loadView方法中添加以下行|offset|length|style|CODE|996803|++++yourButton.layer.cornerRadius+=+10;+//+this+value+vary+as+per+your+desire
++++yourButton.clipsToBounds+=+YES;|996804|entityMap^0|0|0|0|5|8|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|V|8|@$K|W|L|X|M|N]]|9|@]|A|$]]|$1|O|3|P|5|F|7|Y|8|@]|9|@]|A|$G|H]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

I tried the following solution with the UITextArea and I expect this will work with UIButton as well.
First of all import this in your .m file -
<pre><code>#import &lt;QuartzCore/QuartzCore.h&gt;
</code></pre>
and then in your <code>loadView</code> method add following lines
<pre><code> yourButton.layer.cornerRadius = 10; // this value vary as per your desire
 yourButton.clipsToBounds = YES;
</code></pre>

blocks|key|782564|text|另一个可以设置边框(使其更像一个按钮)的答案在这里...+How+to+set+rectangle+border+for+custom+type+UIButton|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|782565|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/854306/how-to-set-rectangle-border-for-custom-type-uibutton/7672651#7672651^0|T|1G|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

An alternative answer which sets a border too (making it more like a button) is here ... <a href="https://stackoverflow.com/questions/854306/how-to-set-rectangle-border-for-custom-type-uibutton/7672651#7672651">How to set rectangle border for custom type UIButton</a>

blocks|key|996899|text|如果你想要一个圆角只到一个角或两个角，等等。阅读这篇文章：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|996900|带圆角的ObjC+-+UIButton+-+http://goo.gl/kfzvKP|offset|length|996901|它是一个XIB/Storyboard子类。无需编写代码即可导入和设置边框。|996902|entityMap|0|LINK|mutability|MUTABLE|url|http://goo.gl/kfzvKP^0|0|M|K|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@$D|R|E|S|1|T]]|A|$]]|$1|F|3|G|5|6|7|U|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]]]

If you want a rounded corner only to one corner or two corners, etc... read this post: 

[ObjC] – UIButton with rounded corner - <a href="http://goo.gl/kfzvKP" rel="nofollow">http://goo.gl/kfzvKP</a>

It's a XIB/Storyboard subclass. Import and set borders without write code.

blocks|key|782633|text|UIButton*+closeBtn+=+[[UIButton+alloc]+initWithFrame:CGRectMake(10,+50,+90,+35)];
//Customise+this+button+as+you+wish+then
closeBtn.layer.cornerRadius+=+10;
closeBtn.layer.masksToBounds+=+YES;//Important|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|782634|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>UIButton* closeBtn = [[UIButton alloc] initWithFrame:CGRectMake(10, 50, 90, 35)];
//Customise this button as you wish then
closeBtn.layer.cornerRadius = 10;
closeBtn.layer.masksToBounds = YES;//Important
</code></pre>

blocks|key|782648|text|对于Swift：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|782649|button.layer.cornerRadius+=+10.0|code-block|syntax|javascript|782650|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

For Swift:

<pre><code>button.layer.cornerRadius = 10.0
</code></pre>

blocks|key|996952|text|对于iOS+SWift+4|type|unstyled|depth|inlineStyleRanges|entityRanges|data|996953|button.layer.cornerRadius+=+25;
button.layer.masksToBounds+=+true;|code-block|syntax|javascript|996954|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

For iOS SWift 4 

<pre><code>button.layer.cornerRadius = 25;
button.layer.masksToBounds = true;
</code></pre>

blocks|key|997006|text|试试我的代码。你可以在这里设置UIButton的所有属性，比如文本颜色、背景颜色、边角半径等。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|997007|extension+UIButton+{
++++func+btnCorner()+{
++++++++layer.cornerRadius+=+10
++++++++clipsToBounds+=+true
++++++++backgroundColor+=+.blue
++++}
}|code-block|syntax|javascript|997008|现在像这样调用|997009|yourBtnName.btnCorner()|997010|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Try my code. Here you can set all properties of UIButton like text colour, background colour, corner radius, etc.

<pre><code>extension UIButton {
 func btnCorner() {
 layer.cornerRadius = 10
 clipsToBounds = true
 backgroundColor = .blue
 }
}
</code></pre>

Now call like this

<pre><code>yourBtnName.btnCorner()
</code></pre>

blocks|key|782743|text|Swift+4更新|type|unstyled|depth|inlineStyleRanges|entityRanges|data|782744|我也尝试了很多方法，但我还是不能让我的UIButton陷入绝境。我在viewDidLayoutSubviews()中添加了转角半径代码，解决了我的问题。|offset|length|style|CODE|782745|func+viewDidLayoutSubviews()+{
++++++++super.viewDidLayoutSubviews()
++++++++anyButton.layer.cornerRadius+=+anyButton.frame.height+/+2
++++}|code-block|syntax|javascript|782746|我们还可以调整cornerRadius，如下所示|782747|func+viewDidLayoutSubviews()+{
++++++++super.viewDidLayoutSubviews()
++++++++anyButton.layer.cornerRadius+=+10+//Any+suitable+number+as+you+prefer+can+be+applied+
++++}|782748|entityMap^0|0|Y|N|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@$D|U|E|V|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|W|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|X|8|@]|9|@]|A|$]]|$1|O|3|P|5|J|7|Y|8|@]|9|@]|A|$K|L]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

<h1>Swift 4 Update</h1>

I also tried many options still i wasn't able to get my UIButton round cornered.
I added the corner radius code inside the <code>viewDidLayoutSubviews()</code> Solved My issue.

<pre><code>func viewDidLayoutSubviews() {
 super.viewDidLayoutSubviews()
 anyButton.layer.cornerRadius = anyButton.frame.height / 2
 }
</code></pre>

Also we can adjust the cornerRadius as follows 

<pre><code>func viewDidLayoutSubviews() {
 super.viewDidLayoutSubviews()
 anyButton.layer.cornerRadius = 10 //Any suitable number as you prefer can be applied 
 }
</code></pre>

blocks|key|782795|text|你可以在视图上对你的按钮使用插座连接和didSet功能；|type|unstyled|depth|inlineStyleRanges|entityRanges|data|782796|+@IBOutlet+weak+var+button:+UIButton!{
++++++++didSet+{
++++++++++++button.layer.cornerRadius+=+5;
++++++++++++button.layer.masksToBounds+=+true;
++++++++}
++++}|code-block|syntax|javascript|782797|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can use outlet connection and didSet function for your button on the view;
<pre><code> @IBOutlet weak var button: UIButton!{
 didSet {
 button.layer.cornerRadius = 5;
 button.layer.masksToBounds = true;
 }
 }
</code></pre>

I have a rectangle image (jpg) and want to use it to fill the background of a button with rounded corner in xcode.

I wrote the following:

<pre><code>UIButton *button = [[UIButton buttonWithType:UIButtonTypeRoundedRect] retain];
CGRect frame = CGRectMake(x, y, cardWidth, cardHeight);
button.frame = frame;
[button setBackgroundImage:backImage forState:UIControlStateNormal];
</code></pre>

However, the button I get with that approach doesn't have its corners rounded: it is instead a plain rectangle that looks exactly like my original image. How can I get instead an image with rounded corner to represent my button?

Thanks!

How to round the corners of a button

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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我有一个矩形图像(jpg)，并想用它来填充一个按钮的背景圆角在xcode。我写了以下内容：UIButton *button = [[UIButton buttonWithType:UIButtonTypeRoundedRect] retain];CGRect frame = CGRectMake(x, y, cardW...

问如何使按钮的角变圆
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问如何使按钮的角变圆
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