Android fill_parent issue

Question

HI there. This is my layout

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
    <ListView android:id="@+id/lv"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:background="@android:color/white" />
    <Button android:layout_width="wrap_content" 
        android:layout_height="wrap_content"
        android:layout_below="@id/lv" />
</RelativeLayout>

When I run this the list view occupies full screen. What I want is list view to be full screen except button area without mentioning dp. Thanks

score 1 · Answer 1 · answered Sep 30 '10 at 12:43

1

@mnish is quite right except that in Android 1.5 you have to declare ids before using them.

<ListView android:id="@+id/lv"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@android:color/white" />
<Button android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@id/lv" />

You can use layout_above, layout_below, layout_toLeftOf, ...

answered Sep 30 '10 at 12:43

fedj

3,452
1
22
21

Thats true. However, since i mentioned fill_parent as height, the button isn't visible. – Prabhat Sep 30 '10 at 12:47
Prevent this by putting android:layout_alignParentTop="true" on your listview – fedj Sep 30 '10 at 13:24

score 1 · Accepted Answer · answered Sep 30 '10 at 12:52

After trying out some possibilities I found this to be helpful

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
    <ListView android:id="@+id/lv"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:background="@android:color/white" android:layout_above="@+id/bt"/>
    <Button android:layout_width="wrap_content" 
        android:layout_height="wrap_content"
        android:id="@+id/bt" android:layout_alignParentBottom="true"/>
</RelativeLayout>

Thanks all of you for answers.

score 1 · Answer 3 · answered Sep 30 '10 at 14:26

I think a LinearLayout is more suited here.

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    >
    <ListView
         android:layout_width="fill_parent"
         android:layout_height="wrap_content"
         android:layout_weight="1"
         />
    <Button
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        />
</LinearLayout>

(Yes, wrap_content is correct on ListView's layout_height, the layout_weight="1" will ensure it expands as much as possible)

mnish · Answer 4 · 2010-09-30T12:36:18.900

0

I guess you can do this:

write:

<Button android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@id/lv" />

before:

<ListView android:id="@+id/lv"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@android:color/white" />

like this:

<Button android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@id/lv" />

<ListView android:id="@+id/lv"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@android:color/white" />

but I am not sure

edited Sep 30 '10 at 12:36

answered Sep 30 '10 at 12:24

mnish

3,877
12
36
54

You can't do that. You have to have declared the listview before you can reference it. Instead, set the button as alignparentbottom, and then set the listview above it – Falmarri Sep 30 '10 at 15:56

Android fill_parent issue

4 Answers4

Linked