如何在Android中将列表视图拉伸到全屏

Question

Supose I have a layout oriented vertically with one button in the top, a list view in the middle, and a button in the bottom:

------
BUTTON
LISTVIEW
LISTVIEW
LISTVIEW
------

I would like to make the whole layout scrollable, to be able to see the full list when scrolling down it:

------
LISTVIEW
LISTVIEW
LISTVIEW
BUTTON
------

Answer 1

I think I found it, here's a solution for you, without using ScrollView (which is actually not needed):

<LinearLayout android:layout_width="match_parent"
              android:layout_height="match_parent"
              android:orientation="vertical">

<Button android:id="@+id/btn1" 
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="0"/>

<ListView android:id="@android:id/list1"
          android:layout_height="0dip"
          android:layout_width="match_parent"
          android:layout_weight="1" />

<ListView android:id="@android:id/list2"
          android:layout_height="0dip"
          android:layout_width="match_parent"
          android:layout_weight="1" />

<ListView android:id="@android:id/list3"
          android:layout_height="0dip"
          android:layout_width="match_parent"
          android:layout_weight="1" />

<Button android:id="@+id/btn2" 
        android:layout_width="match_parent"
        android:layout_height="wrap_content"/>

</LinearLayout>

Answer 2

您可以在ListView的标题中添加按钮，并在ListView的底部添加按钮。

Answer 3

1. Add a Button as header and a Button as footer to the ListView.

2. Write a custom Adapter for the ListView, return Button view at 0 and last position in getView().

Answer 4

I'm not really sure if you want to be able to scroll the buttons too, depending on that there are two ways which you can try. First where the button won't change their position while list view is scrolling. In this situation your xml should look like this :

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <Button
        android:id="@+id/top_button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true" />

    <ListView
        android:id="@+id/my_listview"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_above="@+id/bottom_button"
        android:layout_below="@+id/top_button" />

    <Button
        android:id="@+id/bottom_button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true" />

</RelativeLayout>

The second option is when you want these two buttons to scroll while list view is scrolling too. To achieve this you should add Button s to your list view as header and footer :

mListView.addHeader(myFirstButton);
mListView.addFooter(mySecondButton);

And that should do the trick for you in both scenarios.

Answer 5

您应该使用android:layout_height="wrap_content"