UIColor Extensions

UIColor+Extension.h

#import <UIKit/UIKit.h>

NS_ASSUME_NONNULL_BEGIN

@interface UIColor (Extension)

+ (instancetype)colorWithRGB:(NSUInteger)value alpha:(CGFloat)alpha;

@end

#ifndef HexColor
# define HexColor(x) [UIColor colorWithRGB:(NSUInteger)(x) alpha:1]
# define HexColorA(x, a) [UIColor colorWithRGB:(NSUInteger)(x) alpha:a]
#endif

NS_ASSUME_NONNULL_END

UIColor+Extension.m

#import "UIColor+Extension.h"

@implementation UIColor (Extension)

+ (instancetype)colorWithRGB:(NSUInteger)value alpha:(CGFloat)alpha {
    CGFloat r = ((value & 0xff0000) >> 16) / 255.0;
    CGFloat g = ((value & 0xff00) >> 8) / 255.0;
    CGFloat b = (value & 0xff) / 255.0;

    return [UIColor colorWithRed:r green:g blue:b alpha:alpha];
}

@end