Resize NSPopover after it is shown

Question

I have an NSPopover who's content in an NSView. I create the popover and add the view like this:

NSPopover *thePopover = [[NSPopover alloc] init];
[thePopover setContentViewController:myViewController];

I then show the popover and set the size:

[thePopover setContentSize:NSMakeSize(300.0f, 160.0f)];

At this point the popover is visible and its content view is correct. Is there a way that I can resize the popover at this point without closing and re-showing it?

score 11 · Accepted Answer · answered Jan 22 '13 at 23:53

11

I was able to achieve this by calling back to the controller that launched the popover via a delegate protocol and resetting the size using the setContentSize:

answered Jan 22 '13 at 23:53

Chris

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how did you do that? – Cyril May 29 '23 at 16:17

Valentin Shergin · Answer 2 · 2016-06-06T04:36:33.963

3

NSWindow has private property _popover that store a reference to NSPopover. You can use it to access to NSPopover instance from any NSViewController (and then call setContentSize: on it) like this:

- (NSPopover *)popover
{
    NSWindow *window = self.view.window;
    NSPopover *popover = [window valueForKey:@"_popover"];
    return popover;
}

edited Jun 06 '16 at 04:36

answered Apr 29 '15 at 14:40

Valentin Shergin

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score 2 · Answer 3 · answered Jan 22 '13 at 08:02

2

From the documentation:

The popover's content size is set to match the size of the content view when the content view controller is set.

So, set the frame of the popover's content view.

answered Jan 22 '13 at 08:02

Peter Hosey

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This seems like the simplest answer. – Morten J Dec 11 '20 at 17:13

Resize NSPopover after it is shown

3 Answers3