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设置16进制颜色

////  UIColor+RGB.h//  类.////  Created by soindy on 14-8-19.//  Copyright (c) 2014年 soindy. All rights reserved.//#import 
   
    @interface UIColor (RGB)+ (UIColor *) colorFromHexRGB:(NSString *) inColorString;+ (UIColor *) colorFromHexARGB:(NSString *) inColorString;@end
   

////  UIColor+RGB.m//  类.////  Created by soindy on 14-8-19.//  Copyright (c) 2014年 soindy. All rights reserved.//#import "UIColor+RGB.h"@implementation UIColor (RGB)// RRGGBB eg. 3F4F5F+ (UIColor *) colorFromHexRGB:(NSString *) inColorString{    NSString *inColorStringWithAlpha = [NSString stringWithFormat:                                        @"%@%@", @"FF", inColorString];        return [self colorFromHexARGB:inColorStringWithAlpha];}// AARRGGBB eg. "803F4F5F" -> 0x803F4F5F// 如果inColorString不符合定义规则, 返回UIColor的色值是#00000000+ (UIColor *) colorFromHexARGB:(NSString *) inColorString{    unsigned int colorCode = 0;        if (nil != inColorString)    {        NSScanner *scanner = [NSScanner scannerWithString:inColorString];        (void) [scanner scanHexInt:&colorCode]; // ignore error    }        // masks off high bits    unsigned char alphaByte = (unsigned char) (colorCode >> 24);    unsigned char redByte = (unsigned char) (colorCode >> 16);    unsigned char greenByte = (unsigned char) (colorCode >> 8);    unsigned char blueByte = (unsigned char) (colorCode);        return [UIColor colorWithRed: (float)redByte / 0xff                           green: (float)greenByte/ 0xff                            blue: (float)blueByte / 0xff                           alpha:(float)alphaByte / 0xff];}@end

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