session-android/res/layout/registration_activity.xml

<?xml version="1.0" encoding="utf-8"?>

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:fillViewport="true"
            android:background="@drawable/background_pattern_repeat">

    <FrameLayout
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:gravity="center" >

        <LinearLayout android:paddingRight="16dip"
                      android:paddingLeft="16dip"
                      android:paddingTop="10dip"
                      android:layout_width="fill_parent"
                      android:layout_height="wrap_content"
                      android:layout_gravity="center"
                      android:orientation="vertical">

            <TextView style="@style/Registration.Description"
                      android:layout_width="fill_parent"
                      android:layout_marginBottom="16dip"
                      android:layout_marginTop="16dip"
                      android:text="Please confirm your country code and phone number."/>

            <TextView style="@style/Registration.Label"
                      android:layout_width="fill_parent"
                      android:textAllCaps="true"
                      android:text="YOUR COUNTRY" />

            <Spinner android:id="@+id/country_spinner"
                     android:layout_width="fill_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginBottom="16dip" />

            <TextView style="@style/Registration.Label"
                      android:layout_width="fill_parent"
                      android:textAllCaps="true"
                      android:text="YOUR COUNTRY CODE AND PHONE NUMBER" />

            <LinearLayout android:orientation="horizontal"
                          android:layout_width="fill_parent"
                          android:layout_height="wrap_content">

                <TextView android:layout_width="wrap_content"
                          android:layout_height="wrap_content"
                          android:textSize="20sp"
                          style="@style/Registration.Constant"
                          android:text="+" />

                <EditText android:id="@+id/country_code"
                          android:layout_width="55dip"
                          android:layout_height="wrap_content"
                          android:singleLine="true"
                          android:gravity="center"
                          android:inputType="phone"
                          android:digits="0123456789" />

                <EditText android:id="@+id/number"
                          android:layout_width="0dip"
                          android:layout_height="wrap_content"
                          android:layout_weight="1"
                          android:inputType="phone"
                          android:hint="PHONE NUMBER"
                          android:gravity="center"
                          android:singleLine="true"/>

            </LinearLayout>

            <Button style="@android:style/Widget.Button"
                    android:id="@+id/registerButton"
                    android:text="Register"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="right"
                    android:textAppearance="?android:attr/textAppearanceMedium"
                    android:layout_marginTop="20dip"
                    android:layout_marginBottom="20dip"/>
        </LinearLayout>
    </FrameLayout>
</ScrollView>