iOS 关于16进制RGB颜色设置问题

针对UI给的标注图上，色值给的都是16进制的，如#ED145B,#000000等等， 那么我们在代码中应该怎么使用这一色值呢？下面给出几种方案以供参考！

1.
写一个宏定义：

#define UGUColorFromRGB_0x(rgbValue) [UIColor \
colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 \
green:((float)((rgbValue & 0xFF00) >> 8))/255.0 \
blue:((float)(rgbValue & 0xFF))/255.0 alpha:1.0]

使用：

moreLabel.textColor = UGUColorFromRGB_0x(0x666666);

这样就可以为该控件设置字体颜色了

2.自己写一个转换方法 调用

#pragma mark - 16进制转RGB
+ (UIColor *)getColorWithHexStr:(NSString *)hexColor {
    if([hexColor containsString:@"#"]){
        //去掉#
        hexColor = [hexColor substringFromIndex:1];
    }
    unsigned int red, green, blue;
    NSRange range;
    range.length =2;

    range.location =0;
    [[NSScanner scannerWithString:[hexColor substringWithRange:range]]scanHexInt:&red];
    range.location =2;
    [[NSScanner scannerWithString:[hexColor substringWithRange:range]]scanHexInt:&green];
    range.location =4;
    [[NSScanner scannerWithString:[hexColor substringWithRange:range]]scanHexInt:&blue];

    return [UIColor colorWithRed:(red)/255.f green:(green)/255.f blue:(blue)/255.f alpha:1.f];
}

调用方法：

[_protocolBtn setTitleColor:[BSDTools getColorWithHexStr:@"000000"] forState:UIControlStateNormal];

这样也是可以设置相应控件颜色的！