Keeping the last visible item of a ListView when the size of the ListView changes

Question

What I want is simple, well at least I thought it would be simple. I just want a window where an EditText is on the bottom of the screen, and the rest of the space is filled with ListView. Unfortunately, it did not work as I expected. What I want is the following image. Is there any easy way to do this in the XML, or should I write some special code for this?

My Problematic Android Source Code.

<?xml version="1.0" encoding="utf-8"?> <LinearLayout  xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="fill_parent" android:orientation="vertical" > <ListView     android:id="@+id/demolist"     android:layout_width="match_parent"     android:layout_height="fill_parent"     android:layout_weight="1"      > </ListView>     <EditText         android:id="@+id/editText1"         android:layout_width="match_parent"         android:layout_height="wrap_content"          android:layout_weight="0">     </EditText> </LinearLayout > 

Answer 1

What you Want

Last Visible Item Without Keyboard

Last Visible Item With Keyboard

Last Visible Item With larger input

Here is how i did it.

Summary

• Set android:stackFromBottom="true" and android:transcriptMode="alwaysScroll" in your list view
• Set android:windowSoftInputMode="adjustPan" in Activity
• Call adapter.notifyDataSetChanged(); when you add new chats so that the list view will always scroll to the last position
• Set android:inputType="textMultiLine" & android:maxLines="4" in EditText for growing text box

Details

Activity

<activity android:name="MainActivity" android:screenOrientation="portrait" android:windowSoftInputMode="adjustPan"></activity> 

Chat View

<RelativeLayout     android:id="@+id/chat_header"     android:layout_width="fill_parent"     android:layout_height="40dp"     android:padding="3dp" >      <Button         android:id="@+id/btnBackChat"         android:layout_width="35dp"         android:layout_height="35dp"         android:layout_alignParentLeft="true"         android:background="@drawable/back_button" />      <TextView         android:id="@+id/txt_name"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_alignBottom="@+id/btnBackChat"         android:layout_centerHorizontal="true"         android:textColor="@android:color/white"         android:textSize="18sp" />      <ImageView         android:id="@+id/imgViewProfileChat"         android:layout_width="35dp"         android:layout_height="35dp"         android:layout_alignParentRight="true"         /> </RelativeLayout>  <ListView     android:id="@+id/listView1"     android:layout_width="match_parent"     android:layout_height="wrap_content"     android:layout_above="@+id/form"     android:layout_below="@+id/chat_header"     android:stackFromBottom="true"     android:transcriptMode="alwaysScroll"/>  <RelativeLayout     android:id="@+id/form"     android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:layout_alignParentBottom="true"     android:layout_alignParentLeft="true"     android:orientation="vertical" >      <ImageButton         android:id="@+id/btnAttach"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_alignParentLeft="true"         android:layout_alignParentTop="true"         android:contentDescription="@string/attach"         android:src="@drawable/attach_icon" />      <EditText         android:id="@+id/txtChat"         android:layout_width="fill_parent"         android:layout_height="wrap_content"         android:layout_toLeftOf="@+id/btnSend"         android:layout_toRightOf="@+id/btnAttach"         android:inputType="textMultiLine"         android:maxLines="4" />      <Button         android:id="@+id/btnSend"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_alignParentRight="true"         android:layout_alignParentTop="true"         android:text="@string/send" /> </RelativeLayout>