分类：
.h中

typedef NS_ENUM(NSUInteger, HJButtonEdgeInsetsStyle) {
    HJButtonEdgeInsetsStyleTop, // image在上，label在下
    HJButtonEdgeInsetsStyleLeft, // image在左，label在右
    HJButtonEdgeInsetsStyleBottom, // image在下，label在上
    HJButtonEdgeInsetsStyleRight // image在右，label在左
}; - (void)layoutButtonWithEdgeInsetsStyle:(HJButtonEdgeInsetsStyle)style imageTitleSpace:(CGFloat)space;

－－
space 是图片与文字的间距。
.m中

 - (void)layoutButtonWithEdgeInsetsStyle:(HJButtonEdgeInsetsStyle)style imageTitleSpace:(CGFloat)space
{
     switch (style) {
        case HJButtonEdgeInsetsStyleTop:
        {
            [self setImageEdgeInsets:UIEdgeInsetsMake(-self.titleLabel.intrinsicContentSize.height, 0, 0, -self.titleLabel.intrinsicContentSize.width)];
            [self setTitleEdgeInsets:UIEdgeInsetsMake(self.currentImage.size.height+space, -self.currentImage.size.width, 0, 0)];
        }
            break;
        case HJButtonEdgeInsetsStyleLeft:
        {
            [self setTitleEdgeInsets:UIEdgeInsetsMake(0, space, 0, 0)];
        }
            break;
        case HJButtonEdgeInsetsStyleBottom:
        {
            [self setImageEdgeInsets:UIEdgeInsetsMake(self.titleLabel.intrinsicContentSize.height, 0, 0, -self.titleLabel.intrinsicContentSize.width)];
            [self setTitleEdgeInsets:UIEdgeInsetsMake(-self.currentImage.size.height-space, -self.currentImage.size.width, 0, 0)];
        }
            break;
        case HJButtonEdgeInsetsStyleRight:
        {
            [self setImageEdgeInsets:UIEdgeInsetsMake(0,self.titleLabel.intrinsicContentSize.width , 0, -self.titleLabel.intrinsicContentSize.width)];
            [self setTitleEdgeInsets:UIEdgeInsetsMake(0, -self.currentImage.size.width-space, 0, self.currentImage.size.width+space)];
        }
            break;
        default:
            break;
    }
 
}

或者自定义，如果达不到需求(图片与文字宽度大于按钮宽度会压缩)。