Change contentSizeForViewInPopover on navigationController push on iOS

Question

I have a UIPopoverController with navigationController and bunch of subviews. The size of the popover is set just before it's shown like this:

[self.myPopover setPopoverContentSize:CGSizeMake(320, 500)];

That works fine. The popover is shown with adjusted size. When another view is pushed on navigation stack the size of a popover is set again - need different height - in viewWillAppear method:

self.contentSizeForViewInPopover = CGSizeMake(320, 700);

This also works fine. When I go back to a previous view the size does not change.

I added the same call in viewWillAppear in first view but the view does not resize.

How can I manage resizing of popover when navigating between views?

Answer 1

I use this hack:

- (CGSize)contentSizeForViewInPopover
{
    return CGSizeMake(320, 200);
}

- (void) forcePopoverSize 
{
    CGSize currentSetSizeForPopover = self.contentSizeForViewInPopover;
    CGSize fakeMomentarySize = CGSizeMake(currentSetSizeForPopover.width - 1.0f, 
                                          currentSetSizeForPopover.height - 1.0f);
    self.contentSizeForViewInPopover = fakeMomentarySize;
}


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

    [self forcePopoverSize];
}

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

    CGSize currentSetSizeForPopover = self.contentSizeForViewInPopover;
    self.contentSizeForViewInPopover = currentSetSizeForPopover;
}