将UIColor转换为RGB值

//将UIColor转换为RGB值- (NSMutableArray *) changeUIColorToRGB:(UIColor *)color{    NSMutableArray *RGBStrValueArr = [[NSMutableArray alloc] init];    NSString *RGBStr = nil;    //获得RGB值描述    NSString *RGBValue = [NSString stringWithFormat:@"%@",color];    //将RGB值描述分隔成字符串    NSArray *RGBArr = [RGBValue componentsSeparatedByString:@" "];    //获取红色值    int r = [[RGBArr objectAtIndex:1] intValue] * 255;    RGBStr = [NSString stringWithFormat:@"%d",r];    [RGBStrValueArr addObject:RGBStr];    //获取绿色值    int g = [[RGBArr objectAtIndex:2] intValue] * 255;    RGBStr = [NSString stringWithFormat:@"%d",g];    [RGBStrValueArr addObject:RGBStr];    //获取蓝色值    int b = [[RGBArr objectAtIndex:3] intValue] * 255;    RGBStr = [NSString stringWithFormat:@"%d",b];    [RGBStrValueArr addObject:RGBStr];    //返回保存RGB值的数组    return [RGBStrValueArr autorelease];}