Draw UIImage of Unicode character

UIImageUnicode.m

@implementation UIImage (UIImageUnicode)

+ (UIImage *)imageFromUnicodePoint:(unichar)codepoint compatibleWithTraitCollection:(UITraitCollection *)traitCollection API_AVAILABLE(ios(10.0)) {
    NSString *str = [NSString stringWithCharacters:&codepoint length:1];
    UIFont *weightRef = [UIFont preferredFontForTextStyle:UIFontTextStyleBody compatibleWithTraitCollection:traitCollection];
    UIFont *sizeRef = [UIFont preferredFontForTextStyle:UIFontTextStyleTitle2 compatibleWithTraitCollection:traitCollection];
    NSAttributedString *drawReady = [[NSAttributedString alloc] initWithString:str attributes:@{
        NSFontAttributeName : [weightRef fontWithSize:sizeRef.pointSize]
    }];
    UIGraphicsBeginImageContextWithOptions([drawReady size], NO, 0);
    [drawReady drawAtPoint:CGPointZero];
    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    
    return [image imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
}

@end