IOS 改变UISearchBar的背景色

之前网上提供的方法试了很多种  都不能很好的去掉背景色  ，修改背景色方法如下：

searchbar.barStyle = UIBarStyleBlackTranslucent;

    searchbar.autocorrectionType = UITextAutocorrectionTypeNo;

    searchbar.autocapitalizationType = UITextAutocapitalizationTypeNone;

    searchbar.keyboardType = UIKeyboardTypeDefault;

searchbar.backgroundImage = [self SearchImageWithColor:[UIColor clearColor] size:searchbar.bounds.size];

 

定义一个函数  

//取消searchbar背景色

- (UIImage *)SearchImageWithColor:(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;

}