activity_chat.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.godoro.androidclients.ChatActivity"
    android:orientation="vertical"
    android:weightSum="1">

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/connectToServer"
        android:id="@+id/button"
        android:onClick="onClickConnectToServer"/>

    <TextView
        android:layout_width="match_parent"
        android:layout_height="33dp"
        android:text="@string/chatRequest"
        android:id="@+id/inputTitle"/>
    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/requestEdit"
        android:layout_gravity="center_horizontal"
        android:layout_below="@+id/inputTitle"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true"
        android:lines="3" />
    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/sendMessage"
        android:id="@+id/callServiceButton"
        android:onClick="onClickChatSend"
        android:layout_below="@+id/requestEdit"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="27dp"
        android:text="@string/chatResponse"
        android:id="@+id/outputTitle" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/responseView"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:layout_centerVertical="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />


</LinearLayout>