hiding views and re-layouting their parent - how?

[Lester Burnham]

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]

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]

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]

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):

<LinearLayout
	xmlns:android="http://schemas.android.com/apk/res/android"
	android:id="@+id/editTop"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >

    <MyEditText android:id="@+id/noteEdit"
        android:layout_width="fill_parent" 
        android:layout_height="fill_parent"
        android:layout_weight="1"
        android:gravity="top"
        android:textSize="24sp"
        />

    <LinearLayout
		android:id="@+id/buttons"
		android:orientation="horizontal"
        android:layout_height="wrap_content"
        android:layout_width="fill_parent">
        
        <Button android:id="@+id/confirmButton"
            android:layout_width="0px"
            android:layout_weight="1"
            android:layout_height="wrap_content"
            android:text="@string/confirm_button"/>

        <Button android:id="@+id/cancelButton"
            android:layout_width="0px"
            android:layout_weight="1"
            android:layout_height="wrap_content"
            android:text="@string/cancel_button"/>

    </LinearLayout>

</LinearLayout>

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

[Lester Burnham]

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]

Hi!

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

Thanks!

[Puscas Marin]

+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.