Question

uibutton怎么点击修改背景颜色

Answer 1

(UIImage *)imageWithColor:(UIColor *)color size:(CGSize)size {
<br>
<br> CGRect rect = CGRectMake(0, 0, size.width, size.height);
<br>
<br>
<br>
<br> UIGraphicsBeginImageContext(rect.size);
<br>
<br> CGContextRef context = UIGraphicsGetCurrentContext();
<br>
<br> CGContextSetFillColorWithColor(context, [color CGColor]);
<br>
<br> CGContextFillRect(context, rect);
<br>
<br>
<br>
<br> UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
<br>
<br> UIGraphicsEndImageContext();
<br>
<br>
<br>
<br> return image;
<br>
<br>}

上边是纯色生成uiimage的方法。

如果我没理解错的话你是用纯色作为背景的，那么用setBackgroundImage方法来用上边的方法设置背景，然后normal时一种颜色，highlighted时一种颜色