How can I convert RGB hex string into UIColor in objective-c?

Question

I have color values coming from the url data is like this, \"#ff33cc\". How can I convert this value into UIColor? I am attempting with the following lines of code. I am not

Answer 1

I have made a function which works in the following cases:- 1) with or without # 2) both 3 and 6 character long values #000 as well as #000000 3) In case of extra digits more than six it ignores the extra digits

//Function Call
UIColor *organizationColor = [self colorWithHexString:@"#AAAAAAAAAAAAA" alpha:1];

//Function
- (UIColor *)colorWithHexString:(NSString *)str_HEX  alpha:(CGFloat)alpha_range{
    NSString *noHashString = [str_HEX stringByReplacingOccurrencesOfString:@"#" withString:@""]; // remove the #

    int red = 0;
    int green = 0;
    int blue = 0;

if ([str_HEX length]<=3)
    {
        sscanf([noHashString UTF8String], "%01X%01X%01X", &red, &green, &blue);
        return  [UIColor colorWithRed:red/16.0 green:green/16.0 blue:blue/16.0 alpha:alpha_range];
    }
else if ([str_HEX length]>7)
    {
        NSString *mySmallerString = [noHashString substringToIndex:6];
        sscanf([mySmallerString UTF8String], "%02X%02X%02X", &red, &green, &blue);
        return  [UIColor colorWithRed:red/255.0 green:green/255.0 blue:blue/255.0 alpha:alpha_range];
    }
else
{
    sscanf([noHashString UTF8String], "%02X%02X%02X", &red, &green, &blue);
    return  [UIColor colorWithRed:red/255.0 green:green/255.0 blue:blue/255.0 alpha:alpha_range];
}}