Get all font name in ios

How to check if a font is available in version of iOS?

- (void) getAllFontName {

    NSArray *familyNames = [[NSArray alloc] initWithArray:[UIFont familyNames]];

    

    NSArray *fontNames;

    NSInteger indFamily, indFont;

    for (indFamily=0; indFamily<[familyNames count]; ++indFamily)

    {

        NSLog(@"Family name: %@", [familyNames objectAtIndex:indFamily]);

        fontNames = [[NSArray alloc] initWithArray:

                     [UIFont fontNamesForFamilyName:

                      [familyNames objectAtIndex:indFamily]]];

        for (indFont=0; indFont<[fontNames count]; ++indFont)

        {

            NSLog(@"Font name: %@", [fontNames objectAtIndex:indFont]);

        }

    }

}