PostScript Name of a font file ( .ttf ) using Objective - C and not all installed fonts

Question

I want to find out the PostScript Name of a .ttf file which I have copied to Documents Directory ... So that I can set the font to a label programmatically without changing the .plist file.

I know this code :

  for (NSString *fontFamilyName in [UIFont familyNames]) {
    for (NSString *fontName in [UIFont fontNamesForFamilyName:fontFamilyName]) {
        NSLog(@"Family: %@    Font: %@", fontFamilyName, fontName);
    }
}

But I want to find PostScript name for only one file example : segoe.ttf

Obviously there will be different font files which will be copied to Documents Directory and I would like to get the PostScript Name for every single file only and not like the one from the code mentioned above. Thank You ...

Answer 1

So I got it using this code :

- (NSString *)realNameOfFont:(NSString *)fullFontName {

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

NSString *documentsDirectory = [paths objectAtIndex:0];

NSString *docFilePath = [documentsDirectory stringByAppendingPathComponent:fullFontName];

NSData *data = [NSData dataWithContentsOfFile:docFilePath];
if (data == nil) {
    NSLog(@"Failed to load font. Data at path %@ is null", fullFontName);
    return nil;
}
  CFErrorRef errorRef;
    CGDataProviderRef provider = CGDataProviderCreateWithCFData((CFDataRef)data);
    CGFontRef font = CGFontCreateWithDataProvider(provider);
    NSString *realFontName = (__bridge NSString *)CGFontCopyPostScriptName(font);
    if (!CTFontManagerRegisterGraphicsFont(font, &errorRef)) {
        NSError *error = (__bridge NSError *)errorRef;
        if (error.code != kCTFontManagerErrorAlreadyRegistered) {
            NSLog(@"Failed to load font: %@", error);
       }
    }
    NSLog(@"PostScript Font Name:%@", realFontName);
    CFRelease(font);
    CFRelease(provider);
    return realFontName;