- (UINavigationController *)navigationController {
    if(UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
        NSString *sourceString = [[NSThread callStackSymbols] objectAtIndex:1];
        // Example: 1   UIKit                               0x00540c89 -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1163
        NSCharacterSet *separatorSet = [NSCharacterSet characterSetWithCharactersInString:@" -[]+?.,"];
        NSMutableArray *array = [NSMutableArray arrayWithArray:[sourceString  componentsSeparatedByCharactersInSet:separatorSet]];
        [array removeObject:@""];

        // Array[3] == class caller
        if([array[3] isEqualToString:@"UISearchDisplayController"]) {
            return nil;
        }
    }
    return [super navigationController];
}