navigationItem.titleView is not shown after presenting

[ElfSundae]

Reproduce:

1. InPopupViewController1.m , set titleView in viewDidLoad

   self.navigationItem.titleView = [UIButton buttonWithType:UIButtonTypeInfoLight];
   

2. Build and run the example project, tap the first row on the table view. You can see that the titleView is not shown.

3. Now tap the "Next" bar item on the opened view controller, and then tap the "Back" arrow, now you can see that the titleView is shown.

I found this bug on my iPhone 6 Plus which installed iOS 8.4, I also tested in iPhone Simulator 9.0/9.1/9.2 and it worked fine.

After debugging, I found that the titleView was removed from popupController's navigationBar after presenting popupController. This is so strange. Maybe it is an iOS bug.

Temporary Fix:

Re-add titleView to navigationBar when viewDidAppear, or reset navigationItem.titleView:

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

    // BugFix: navigationBar's titleView is not shown after presenting STPopupController.
    // See: https://github.com/kevin0571/STPopup/issues/60
    if (self.popupController) {
        UIView *titleView = self.popupController.navigationBar.topItem.titleView;
        if (titleView && !titleView.superview) {
            // Re-add titleView to the navigationBar
            // [self.popupController.navigationBar addSubview:titleView];

            // Or: invoke -[STPopupController updateNavigationBarAniamted]
            self.navigationItem.titleView = titleView;
        }
    }
}

[kevin-lyn]

Related to #59 . Will look into this issue.

[ElfSundae]

@kevin0571 Did you try to set titleView on iOS9 device? I have no device running iOS 9, maybe it's a previous iOS bug.

[kevin-lyn]

Yes, I tried. Works well on iOS 9.