Not compatible with UISearchDisplayController about bolts-objc HOT 3 CLOSED

- (void)viewDidLoad {
//...
    _returnToReferrerView.frame = CGRectMake(0, -44, 320, 44);
    _returnToReferrerView.delegate = self;
    [self.navigationController.view addSubview:_returnToReferrerView];
//...
}
- (void)displayReferreView {
    CGRect frame = self.navigationController.view.frame;
    frame.origin.y = 44;
    self.navigationController.view.frame = frame;
    self.navigationController.navigationBar.frame = CGRectMake(0.0, 0.0, 320.0, 44.0);
    [self.navigationController.view bringSubviewToFront:_returnToReferrerView];
}

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];

    if (!self.returnToRefererController) {
        // fake data
        NSURL *url = [NSURL URLWithString:BFURLWithRefererData];
        BFAppLink *appLink = [[BFURL URLWithURL:url] appLinkReferer];

        // init for display above nav controller
        self.returnToRefererController =
        [[BFAppLinkReturnToRefererController alloc] initForDisplayAboveNavController:self.navigationController];

        [self.returnToRefererController showViewForRefererAppLink:appLink];

        return;
    }
}