IOS中十六进制的颜色转换为UIColor
- #pragma mark - 颜色转换 IOS中十六进制的颜色转换为UIColor
- + (UIColor *) colorWithHexString: (NSString *)color
- {
- NSString *cString = [[color stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] uppercaseString];
- // String should be 6 or 8 characters
- if ([cString length] < 6) {
- return [UIColor clearColor];
- }
- // strip 0X if it appears
- if ([cString hasPrefix:@"0X"])
- cString = [cString substringFromIndex:2];
- if ([cString hasPrefix:@"#"])
- cString = [cString substringFromIndex:1];
- if ([cString length] != 6)
- return [UIColor clearColor];
- // Separate into r, g, b substrings
- NSRange range;
- range.location = 0;
- range.length = 2;
- //r
- NSString *rString = [cString substringWithRange:range];
- //g
- range.location = 2;
- NSString *gString = [cString substringWithRange:range];
- //b
- range.location = 4;
- NSString *bString = [cString substringWithRange:range];
- // Scan values
- unsigned int r, g, b;
- [[NSScanner scannerWithString:rString] scanHexInt:&r];
- [[NSScanner scannerWithString:gString] scanHexInt:&g];
- [[NSScanner scannerWithString:bString] scanHexInt:&b];
- return [UIColor colorWithRed:((float) r / 255.0f) green:((float) g / 255.0f) blue:((float) b / 255.0f) alpha:1.0f];
- }
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