Settings from a PLIST file

static NSDictionary *settings;

+ (id)settingsValueForKeyPath:(NSString*)keyPath
{
    if (settings == nil) {
        NSString *plistPath = [[[NSBundle mainBundle] bundlePath] stringByAppendingPathComponent:@"settings.plist"];
        settings = [[NSDictionary alloc] initWithContentsOfFile:plistPath];
    }

    return [settings valueForKeyPath:keyPath];
}