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hiding views and re-layouting their parent - how?

Lester Burnham
Rancher

Joined: Oct 14, 2008
Posts: 1337
In a vertical LinearLayout I have two views. Depending on user actions, I wish to hide the lower view, and have the upper view take up the newly empty space. Hiding and showing the lower view is no problem via addView/removeView, but that doesn't cause the upper view to take up the empty space. Calling requestLayout() and forceLayout() on the parent layout has no effect; what is the magic incantation for a dynamic re-layout?
Jarrek Smith
Greenhorn

Joined: Oct 18, 2010
Posts: 5
You should use setVisibility

http://developer.android.com/reference/android/view/View.html#setVisibility%28int%29

With the parameter 8 : Gone
Using Gone make the layout invisible and make it taking no space in the parent layout
Lester Burnham
Rancher

Joined: Oct 14, 2008
Posts: 1337
Thanks for suggestion; unfortunately, it makes no difference, even if followed by requestLayout/forceLayout.

The new height *is* properly taken into account if a re-layout is forced by displaying and hiding a soft keyboard. A follow-on "setVisibility(View.VISIBLE)" is ignored in that case, though.

Any other ideas? Does this sound like a bug?
Lester Burnham
Rancher

Joined: Oct 14, 2008
Posts: 1337
I'm still stuck on this. I've tried many combinations of setVisibility(View.GONE), parent.removeView, setMinimumHeight, invalidate, parent.requestLayout() and parent.forceLayout() - the result is alway the same: the bottom view is hidden/gone, but the top view will not take expand to take its place.

What's strange is that there are many posts out on the net where one or the other of the method calls I mentioned are said to achieve this effect; but not on my device, and not on any Android version on the emulator.

The following is the layout I'm using; I want to make the "buttons" LinearLayout disappear under certain circumstances (namely, if a soft keyboard is shown):

(Yes, I know I could be using a RelativeLayout, but that doesn't help with the problem at hand.)
Lester Burnham
Rancher

Joined: Oct 14, 2008
Posts: 1337
In the end, I did not get this to work, so I resorted to using 2 different layouts - one with, and one without the buttons. The functionality of the buttons will be provided by the options menu instead.

A strange and disappointing case - everything and everybody says this should work, but I can't there from here.
Egor Ovcharenko
Greenhorn

Joined: Jan 01, 2011
Posts: 1
Hi!

I am facing exactly the same problem. Have you been able to solve it somehow?

Thanks!
Puscas Marin
Greenhorn

Joined: Apr 30, 2011
Posts: 6
+1 here. Views are made invisible, but the relayout does not occur no matter what.

EDIT: solved, obviously worked with some adjustments to the layout.
 
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