Layout element max size

Hey everybody,

I've done quite a lot of stuff with uGUI and now I found a limitation, I can't really solve with the GUI elements, but which is pretty basic and should work out of the box. I would like to see a max size in the layout element. Why do I need this. I would like to make a collapsing menu element, which shows options once it's been clicked. Here a small example of what I want:


This works by disabling the objects in the menu, and setting a preferred width of the wrapper, which has the size of the button. This is not very clean, and I can't animate it properly. So that's why I think the feature would be necessary.

What do you think? Did I miss anything, with which I could solve that problem?

 

I'm not sure exactly what you mean, but LayoutElement has no max size property because it's equivalent to the preferred size as long as flexible size is 0.

 

Sorry for the late response, I somehow missed your answer. Not quite, I set the preferred Height to 60 and the flexible Height to 0, but when my content inside exeeds the 60 pixels, the parent object grows to the size of the content. The parent object also contains a vertical layout group, but that shouldn't be the problem right?!

€dit: This is the setup for the gif in my first post, when I enable the content, the parent object increases in size to the child objects, even though the preferred height is 60.

 

Not as long as you disable Child Force Expand on the VerticalLayoutGroup.

 

Thanks for still caring, and sorry for my late reply. I found, that my problem was, that I set a min height property. After removing all min heights, the panel still needed space because of the text fields I think. My solution now is, that I put the button, from which the dropdown menu should come from, in front of everything else, and let it ignore the layout. That way I can hide the other content behind it. Not too elegant, but works for me right now. If somebody has a better idea on how to work around this problem, please post it

Here is my current result (Which I can tweak with the animator):

 

How did you made this tweek animation with ugui?

 

Yep this is all uGUI. You have to use an Animator, in which you can add animations. Those animations then can animate properties of uGUI.

 

That is the 2nd time I've seen you tell people this. It's simply not true. When you set a Preferred Width and Flexible Width to zero, the Layout Group DOES NOT LIMIT THE SIZE to that preferred width.

 

Yes it does, as long as you disable Child Force Expand on the layout group.

If you're seeing otherwise, please file a bug and post the case number here so we can fix it. Thanks.

 

I saw another thread about this issue that I can't find right now, in which I believe runevision said it ends up not being correct that setting Flexible [Width|Height] to 0 yields a max size of the matching Preferred value. And even if it did, wouldn't that mean that the preferred setting becomes the max, and we wouldn't be able to have a preferred setting that's different than a max? e.g. I'd like a preferred width of 200, but have it max out at 400.

 

It's not limiting the size for me either in 2018.2. Has a bug been filed yet?

 

Not what I can see, but the solution that this guy had worked for me:

https://forum.unity.com/threads/limit-max-width-of-layout-component.316625/

But pay attention to the little extra fix/detail from post#23 thats neded to make it work.