Hide/show a widget in a flex layout on demand

[lenormf]

Hi,

I want to hide/show a TextView widget in a Flex layout on demand, the goal would be to show contextual information depending on the state of the application (e.g. tips, completion candidates).

A proposal based on adding nil objects to the layout has been hinted at in #104, what is the status of that feature?

Thanks!

[rivo]

nil objects can be added to Flex, see AddItem():

You can provide a nil value for the primitive. This will still consume screen space but nothing will be drawn.

But I'm not sure that this will help you achieve what you want to do. Do you want the TextView to be temporarily empty or do you want to take it out of the layout completely? There is a RemoveItem() function.

[lenormf]

I want the TextView not to take any screen space unless I'm printing information in it, possibly without having to re-instantiate it every time I need it.

[rivo]

You don't need to re-instantiate it. When you call RemoveItem(), it's just taken out of the Flex layout. You can call AddItem() with the same TextView object again.

[lenormf]

Thanks, I'll play around with that then. Closing, in the meantime.