create a chatView layout in android

How about below code -

Main.xml

<LinearLayout android:id="@+id/list_layout"
    android:layout_height="fill_parent" 
    android:layout_width="fill_parent"
    android:background="@drawable/background"
    xmlns:android="http://schemas.android.com/apk/res/android">

    <ListView android:id="@+id/myList" 
        android:layout_height="fill_parent"
        android:layout_width="wrap_content"/>

</LinearLayout>

list_row_layout_even.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/even_container"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content">

    <ImageView android:id="@+id/user_img"
        android:layout_height="wrap_content" 
        android:layout_width="wrap_content"
        android:layout_marginTop="80dip"
        android:src="@drawable/sample_image"/>

    <ImageView android:id="@+id/even_bubble"
        android:layout_height="wrap_content" 
        android:layout_width="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_margin="5dip"
        android:src="@drawable/even"/>

    <TextView android:id="@+id/text" 
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:layout_alignParentRight="true"
        android:textColor="#000000" 
        android:textSize="16dip"
        android:layout_marginRight="8dip"
        android:layout_marginLeft="120dip"
        android:layout_marginTop="10dip" />

</RelativeLayout>

list_row_layout_odd.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/even_container"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content">

    <ImageView android:id="@+id/user_img"
        android:layout_height="wrap_content" 
        android:layout_width="wrap_content"
        android:layout_marginTop="80dip"
        android:layout_alignParentRight="true"
        android:src="@drawable/sample_image"/>

    <ImageView android:id="@+id/odd_bubble"
        android:layout_height="wrap_content" 
        android:layout_width="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_margin="5dip"
        android:src="@drawable/odd"/>

    <TextView android:id="@+id/text" 
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:layout_alignParentLeft="true"
        android:textColor="#ffffff" 
        android:textSize="16dip"
        android:layout_marginRight="120dip"
        android:layout_marginLeft="8dip"
        android:layout_marginTop="10dip" />

</RelativeLayout>

This is my output -

Just Customize this example with your needs.

Instead of TableLayout, i would suggest you to create Custom adapter for ListView. You just need to check the condition to change the background of layout/views inside getViews() method.

Some thread may be helpful to you:

1. Android: ListView style like text messages conversations
2. Android Implementing Chat Bubble in ListView