问题描述
我有一个矩形图像 (jpg)，想用它来填充 xcode 中圆角按钮的背景.
I have a rectangle image (jpg) and want to use it to fill the background of a button with rounded corner in xcode.
我写了以下内容:
UIButton *button = [[UIButton buttonWithType:UIButtonTypeRoundedRect] retain];
CGRect frame = CGRectMake(x, y, cardWidth, cardHeight);
button.frame = frame;
[button setBackgroundImage:backImage forState:UIControlStateNormal];
但是，我用这种方法得到的按钮没有圆角:它是一个普通的矩形，看起来与我的原始图像完全一样.我怎样才能得到一个圆角的图像来代表我的按钮?
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?
谢谢！
推荐答案
我用 UITextArea 尝试了以下解决方案，我希望这也适用于 UIButton.
I tried the following solution with the UITextArea and I expect this will work with UIButton as well.
首先在你的 .m 文件中导入这个 -
First of all import this in your .m file -
#import <QuartzCore/QuartzCore.h>
然后在您的 loadView 方法中添加以下行
and then in your loadView method add following lines
yourButton.layer.cornerRadius = 10; // this value vary as per your desire
yourButton.clipsToBounds = YES;
这篇关于如何使按钮的角变圆的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持编程学习网！