原文链接:http://www.cnblogs.com/Walking-Jin/p/5754519.html
定义方法
/** 取消searchBar背景色 */
- (UIImage *)imageWithColor:(UIColor *)color size:(CGSize)size
{
CGRect rect = CGRectMake(0, 0, size.width, size.height);
UIGraphicsBeginImageContext(rect.size);
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(context, [color CGColor]);
CGContextFillRect(context, rect);
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return image;
}
调用
_searchBar.backgroundImage = [self imageWithColor:[UIColor clearColor] size:_searchBar.bounds.size];
