client.xml

<?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="match_parent"
    android:orientation="vertical">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Char Client"
        android:textStyle="bold"
        android:textAlignment="center"/>

    <LinearLayout
        android:id="@+id/loginpanel"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:visibility="visible">

        <EditText
            android:id="@+id/username"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="User name"
            android:layout_margin="20dp"/>

        <EditText
            android:id="@+id/address"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="Destination Address"
            android:layout_margin="20dp"/>

        <TextView
            android:id="@+id/port"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />

        <Button
            android:id="@+id/connect"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="Connect..."
            android:background="@color/colorAccent"
            android:layout_margin="20dp"/>
    </LinearLayout>

    <LinearLayout
        android:id="@+id/chatpanel"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:visibility="gone" >

        <EditText
            android:id="@+id/say"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="Say something"
            android:layout_margin="20dp"/>

        <Button
            android:id="@+id/send"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@color/colorAccent"
            android:text="Send"
            android:layout_margin="20dp"/>

        <Button
            android:id="@+id/disconnect"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@color/colorAccent"
            android:text="Disconnect"
            android:layout_margin="20dp"/>

        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="BACK"
            android:background="@color/colorAccent"
            android:textSize="15dp"
            android:id="@+id/back"/>

        <ScrollView
            android:layout_width="match_parent"
            android:layout_height="match_parent" >

            <TextView
                android:id="@+id/chatmsg"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_margin="20dp"/>

        </ScrollView>

    </LinearLayout>



</LinearLayout>