session-android/res/layout/registration_activity.xml

<?xml version="1.0" encoding="utf-8"?>
<ScrollView
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@color/white"
    android:fillViewport="true"
    tools:context=".RegistrationActivity">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <LinearLayout
            android:id="@+id/header"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="40dp"
            android:layout_marginLeft="32dp"
            android:layout_marginRight="32dp"
            android:layout_alignParentTop="true"
            android:orientation="vertical">

            <TextView
                android:id="@+id/verify_header"
                style="@style/Signal.Text.Headline.Registration"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:gravity="center"
                android:paddingBottom="16dp"
                android:text="@string/RegistrationActivity_enter_your_phone_number_to_get_started" />

            <TextView
                android:id="@+id/verify_subheader"
                style="@style/Signal.Text.Body"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:gravity="center"
                android:paddingBottom="25dp"
                android:text="@string/RegistrationActivity_you_will_receive_a_verification_code" />

        </LinearLayout>

        <LinearLayout
            android:id="@+id/restore_container"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_below="@id/header"
            android:layout_marginTop="30dp"
            android:layout_marginLeft="32dp"
            android:layout_marginRight="32dp"
            android:orientation="vertical"
            android:paddingBottom="0dp"
            android:visibility="invisible"
            tools:visibility="gone">

            <TextView
                android:id="@+id/backup_created_text"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                tools:text="Backup created: 1 min ago" />

            <TextView
                android:id="@+id/backup_size_text"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginTop="16dp"
                tools:text="Backup size: 899 KB" />

            <TextView
                android:id="@+id/backup_progress_text"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_horizontal"
                android:layout_marginTop="16dp"
                tools:text="100 messages so far..." />

            <com.dd.CircularProgressButton
                android:id="@+id/restore_button"
                android:layout_width="match_parent"
                android:layout_height="50dp"
                android:layout_gravity="center_horizontal"
                android:layout_marginTop="20dp"
                android:background="@color/signal_primary"
                android:textColor="@color/white"
                app:cpb_colorIndicator="@color/white"
                app:cpb_colorProgress="@color/textsecure_primary"
                app:cpb_cornerRadius="4dp"
                app:cpb_selectorIdle="@drawable/progress_button_state"
                app:cpb_textIdle="@string/registration_activity__restore_backup" />

            <Button
                android:id="@+id/skip_restore_button"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_horizontal"
                android:layout_marginTop="13dp"
                android:paddingLeft="30dp"
                android:paddingTop="10dp"
                android:paddingRight="30dp"
                android:paddingBottom="10dp"
                style="@style/Button.Borderless.Registration"
                android:text="@string/registration_activity__skip" />

        </LinearLayout>

        <LinearLayout
            android:id="@+id/registration_container"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_below="@id/header"
            android:layout_marginLeft="32dp"
            android:layout_marginTop="30dp"
            android:layout_marginRight="32dp"
            android:animateLayoutChanges="true"
            android:orientation="vertical"
            android:paddingBottom="0dp"
            android:clipToPadding="false"
            android:clipChildren="false"
            tools:visibility="gone">

            <FrameLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="16dp"
                android:background="@drawable/labeled_edit_text_background_inactive">

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

            </FrameLayout>

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layoutDirection="ltr"
                android:orientation="horizontal">

                <org.thoughtcrime.securesms.components.LabeledEditText
                    android:id="@+id/country_code"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_weight="1"
                    android:layout_marginEnd="12dp"
                    android:layout_marginRight="12dp"
                    app:labeledEditText_background="@color/white"
                    app:labeledEditText_textLayout="@layout/country_code_text" />

                <org.thoughtcrime.securesms.components.LabeledEditText
                    android:id="@+id/number"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_weight="3"
                    app:labeledEditText_background="@color/white"
                    app:labeledEditText_label="Phone Number"
                    app:labeledEditText_textLayout="@layout/phone_text"/>

            </LinearLayout>

            <com.dd.CircularProgressButton
                android:id="@+id/registerButton"
                android:layout_width="match_parent"
                android:layout_height="50dp"
                android:layout_gravity="center_horizontal"
                android:layout_marginTop="20dp"
                android:background="@color/signal_primary"
                android:textColor="@color/white"
                app:cpb_colorIndicator="@color/white"
                app:cpb_colorProgress="@color/textsecure_primary"
                app:cpb_cornerRadius="4dp"
                app:cpb_selectorIdle="@drawable/progress_button_state"
                app:cpb_textIdle="@string/RegistrationActivity_next" />

            <TextView
                android:id="@+id/skip_button"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_horizontal"
                android:layout_marginTop="20dp"
                android:text="@android:string/cancel"
                android:textColor="@color/core_grey_60" />

        </LinearLayout>

        <android.support.constraint.ConstraintLayout
            android:id="@+id/verification_container"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_below="@id/header"
            android:visibility="invisible"
            tools:visibility="visible">

            <org.thoughtcrime.securesms.components.registration.VerificationCodeView
                android:id="@+id/code"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentTop="true"
                android:layout_centerHorizontal="true"
                android:layout_marginStart="8dp"
                android:layout_marginLeft="8dp"
                android:layout_marginTop="24dp"
                android:layout_marginEnd="8dp"
                android:layout_marginRight="8dp"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent"
                app:vcv_inputColor="@color/core_black"
                app:vcv_inputWidth="30dp"
                app:vcv_spacing="10dp"
                app:vcv_textColor="@color/core_black" />

            <org.thoughtcrime.securesms.components.registration.CallMeCountDownView
                android:id="@+id/call_me_count_down"
                style="@style/Button.Borderless.Registration"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_below="@id/code"
                app:layout_constraintTop_toTopOf="@+id/wrong_number"
                app:layout_constraintStart_toStartOf="@+id/code" />

            <Button
                android:id="@+id/wrong_number"
                style="@style/Button.Borderless.Registration"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginTop="32dp"
                android:layout_toEndOf="@id/call_me_count_down"
                android:layout_toRightOf="@id/call_me_count_down"
                android:text="@string/RegistrationActivity_wrong_number"
                app:layout_constraintEnd_toEndOf="@+id/code"
                app:layout_constraintTop_toBottomOf="@+id/code" />

            <org.thoughtcrime.securesms.components.registration.VerificationPinKeyboard
                android:id="@+id/keyboard"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_alignParentBottom="true"
                app:layout_constraintBottom_toBottomOf="parent" />

        </android.support.constraint.ConstraintLayout>


        <LinearLayout
            android:id="@+id/pin_container"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_below="@id/header"
            android:animateLayoutChanges="true"
            android:orientation="vertical"
            android:paddingLeft="16dp"
            android:paddingTop="30dp"
            android:paddingRight="16dp"
            android:paddingBottom="0dp"
            android:visibility="invisible"
            tools:visibility="gone">

            <LinearLayout
                android:id="@+id/pin_clarification_container"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="20dp"
                android:layout_marginTop="16dp"
                android:layout_marginRight="20dp"
                android:layout_marginBottom="16dp"
                android:orientation="horizontal"
                android:visibility="gone"
                tools:visibility="visible">

                <TextView
                    android:id="@+id/clarification_label"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center_vertical"
                    android:layout_marginLeft="5dp"
                    android:layout_marginTop="-2dp"
                    android:layout_marginRight="5dp"
                    android:text="@string/registration_activity__the_registration_lock_pin_is_not_the_same_as_the_sms_verification_code_you_just_received_please_enter_the_pin_you_previously_configured_in_the_application"
                    android:textColor="#73B7F0" />
            </LinearLayout>


            <android.support.design.widget.TextInputLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="15dp"
                android:paddingLeft="100dp"
                android:paddingRight="100dp">

                <android.support.design.widget.TextInputEditText
                    android:id="@+id/pin"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:hint="@string/registration_activity__registration_lock_pin"
                    android:imeOptions="actionDone"
                    android:inputType="numberPassword" />

            </android.support.design.widget.TextInputLayout>

            <com.dd.CircularProgressButton
                android:id="@+id/pinButton"
                android:layout_width="match_parent"
                android:layout_height="50dp"
                android:layout_gravity="center_horizontal"
                android:layout_marginLeft="16dp"
                android:layout_marginTop="40dp"
                android:layout_marginRight="16dp"
                android:background="@color/signal_primary"
                android:textColor="@color/white"
                app:cpb_colorIndicator="@color/white"
                app:cpb_colorProgress="@color/textsecure_primary"
                app:cpb_cornerRadius="4dp"
                app:cpb_selectorIdle="@drawable/progress_button_state"
                app:cpb_textIdle="@string/RegistrationActivity_continue" />


            <TextView
                android:id="@+id/forgot_button"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_horizontal"
                android:layout_marginTop="20dp"
                android:padding="15dp"
                android:text="@string/registration_activity__forgot_pin"
                android:textColor="@color/blue_400" />


        </LinearLayout>

    </RelativeLayout>

</ScrollView>