Can't redraw the popover in correct place after changing the orientation of the device

Question

I have a tabbar app in which I need to show a popover from the tabBarItem by clicking on it. So, I in my appDelegate:

- (BOOL)tabBarController:(UITabBarController *)tabBarController shouldSelectViewController:(UIViewController *)viewController
{
    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
        if (viewController == [self.objTabBarController.viewControllers objectAtIndex:2])
        {
            if (self.settingsPopover == nil) {
                UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:@"Main - iPad" bundle: nil];
                SettingsViewController *settingsController = [mainStoryboard instantiateViewControllerWithIdentifier: @"SettingsPopover"];
                UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:settingsController];
                self.settingsPopover = [[UIPopoverController alloc] initWithContentViewController:navigationController];
                self.settingsPopover.delegate = self;

                CGSize screenSize;
                if ([[UIApplication sharedApplication] statusBarOrientation] == UIDeviceOrientationPortrait || [[UIApplication sharedApplication] statusBarOrientation] == UIDeviceOrientationPortraitUpsideDown){
                    screenSize = CGSizeMake ([UIScreen mainScreen].applicationFrame.size.width, [UIScreen mainScreen].applicationFrame.size.height);
                } else {
                    screenSize = CGSizeMake ([UIScreen mainScreen].applicationFrame.size.height, [UIScreen mainScreen].applicationFrame.size.width);
                }
                NSLog(@"WIDTH = %f, HEIGHT = %f", screenSize.width, screenSize.height);
                screenSize.height -= 50;
                screenSize.width = screenSize.width / 2 + 105;

                CGRect rect = CGRectMake(screenSize.width, screenSize.height, 1, 1);

                [self.settingsPopover presentPopoverFromRect:rect inView:self.window.rootViewController.view permittedArrowDirections:UIPopoverArrowDirectionDown animated:YES];
            } else {
                [self.settingsPopover dismissPopoverAnimated:NO];
                self.settingsPopover = nil;
            }

            return NO;
        }
    }
    return YES;
}

So it displays correctly. But I need to redraw the popover after the change of the device orientation. For this purposes I made:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
        [[NSNotificationCenter defaultCenter] addObserver:self
                                                 selector:@selector(handleDidChangeStatusBarOrientationNotification:)
                                                     name:UIApplicationDidChangeStatusBarOrientationNotification
                                                   object:nil];
}

- (void) handleDidChangeStatusBarOrientationNotification:(NSNotification *)notification;
{
    if (self.settingsPopover)
    {
        CGSize screenSize;
        if ([[UIApplication sharedApplication] statusBarOrientation] == UIDeviceOrientationPortrait || [[UIApplication sharedApplication] statusBarOrientation] == UIDeviceOrientationPortraitUpsideDown){
            screenSize = CGSizeMake ([UIScreen mainScreen].applicationFrame.size.width, [UIScreen mainScreen].applicationFrame.size.height);
        } else{
            screenSize = CGSizeMake ([UIScreen mainScreen].applicationFrame.size.height, [UIScreen mainScreen].applicationFrame.size.width);
        }
        NSLog(@"WIDTH = %f, HEIGHT = %f", screenSize.width, screenSize.height);
        screenSize.height -= 50;
        screenSize.width = screenSize.width / 2 + 105;

        CGRect rect = CGRectMake(screenSize.width, screenSize.height, 1, 1);
        [self.settingsPopover presentPopoverFromRect:rect inView:self.window.rootViewController.view permittedArrowDirections:UIPopoverArrowDirectionDown animated:YES];
    }
}

So, the NSLog shows the correct screenSize after the changing the orientation but the popover shows in incorrect place. Can anyone help me to solve this?

when changing orientation you hide popover and display after delay in view — NANNAV, Dec 26 '13 at 11:46
You can refer to my answer at http://stackoverflow.com/questions/3008477/uipopover-and-orientation-change/20970049#20970049. It works for iOS 7.0 and later. — Nitin Gupta, Jan 07 '14 at 11:18

score 0 · Answer 1 · answered Dec 26 '13 at 11:05

0

For that you have to close your Popover first and then show it again as I have done to solve my problem

answered Dec 26 '13 at 11:05

Retro

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Unfortunately I have a navigation controller as a content for the popoverController, so I want to save it after the orientation has been changed. Anyway, after adding a dismiss method - the popover is dismissing after changing the orientation and not presenting next. – ShurupuS Dec 26 '13 at 11:11
dismiss and set nil to popover object, then allocate it should work – Retro Dec 26 '13 at 11:43
I don't need to remove the popover - there is some values and user data in textfields - which should be saved. – ShurupuS Dec 26 '13 at 11:47
you can save the value into NSUserDefault and then get back when you show – Retro Dec 26 '13 at 12:19

score 0 · Answer 2 · answered Nov 30 '16 at 19:01

In case anyone is looking for an answer in Swift 3...

1) Register for orientation change events.

    NotificationCenter.default.addObserver(self, selector: #selector(screenRotated), name: NSNotification.Name.UIDeviceOrientationDidChange, object: nil)

2) Inside your view controller being presented as a popover...

    func screenRotated() {
        // Redraw the popover.
        DispatchQueue.main.async {
            self.preferredContentSize = CGSize(width: UIScreen.main.bounds.width, height: self.view.frame.height)
        }
    }

Can't redraw the popover in correct place after changing the orientation of the device

2 Answers2