Signal-Android/app/src/main/res/layout/fragment_change_number_enter_phone_number.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <include layout="@layout/dsl_settings_toolbar" />

    <ScrollView
        android:id="@+id/change_number_enter_phone_number_scroll"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_marginBottom="24dp"
        android:fillViewport="true"
        app:layout_constraintBottom_toTopOf="@+id/change_number_enter_phone_number_continue"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/toolbar">

        <androidx.constraintlayout.widget.ConstraintLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:paddingStart="32dp"
            android:paddingEnd="32dp">

            <TextView
                android:id="@+id/change_number_enter_phone_number_old_number_label"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="8dp"
                android:text="@string/ChangeNumberEnterPhoneNumberFragment__your_old_number"
                android:textAppearance="@style/TextAppearance.Signal.Body2.Bold"
                android:textColor="@color/signal_text_primary_dialog"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent" />

            <FrameLayout
                android:id="@+id/change_number_enter_phone_number_old_number_spinner_frame"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="8dp"
                android:background="@drawable/labeled_edit_text_background_inactive"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@id/change_number_enter_phone_number_old_number_label">

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

            </FrameLayout>

            <LinearLayout
                android:id="@+id/change_number_enter_phone_number_old_number_input_layout"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="16dp"
                android:layoutDirection="ltr"
                android:orientation="horizontal"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@+id/change_number_enter_phone_number_old_number_spinner_frame">

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

                <org.thoughtcrime.securesms.components.LabeledEditText
                    android:id="@+id/change_number_enter_phone_number_old_number_number"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_weight="3"
                    app:labeledEditText_background="@color/signal_background_primary"
                    app:labeledEditText_label="@string/ChangeNumberEnterPhoneNumberFragment__old_phone_number"
                    app:labeledEditText_textLayout="@layout/phone_text" />
            </LinearLayout>

            <TextView
                android:id="@+id/change_number_enter_phone_number_new_number_label"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="24dp"
                android:text="@string/ChangeNumberEnterPhoneNumberFragment__your_new_number"
                android:textAppearance="@style/TextAppearance.Signal.Body2.Bold"
                android:textColor="@color/signal_text_primary_dialog"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@+id/change_number_enter_phone_number_old_number_input_layout" />

            <FrameLayout
                android:id="@+id/change_number_enter_phone_number_new_number_spinner_frame"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="8dp"
                android:background="@drawable/labeled_edit_text_background_inactive"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@id/change_number_enter_phone_number_new_number_label">

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

            </FrameLayout>

            <LinearLayout
                android:id="@+id/change_number_enter_phone_number_new_number_input_layout"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="16dp"
                android:layoutDirection="ltr"
                android:orientation="horizontal"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toBottomOf="@+id/change_number_enter_phone_number_new_number_spinner_frame">

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

                <org.thoughtcrime.securesms.components.LabeledEditText
                    android:id="@+id/change_number_enter_phone_number_new_number_number"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_weight="3"
                    app:labeledEditText_background="@color/signal_background_primary"
                    app:labeledEditText_label="@string/ChangeNumberEnterPhoneNumberFragment__new_phone_number"
                    app:labeledEditText_textLayout="@layout/phone_text" />
            </LinearLayout>

        </androidx.constraintlayout.widget.ConstraintLayout>

    </ScrollView>

    <com.google.android.material.button.MaterialButton
        android:id="@+id/change_number_enter_phone_number_continue"
        style="@style/Signal.Widget.Button.Large.Primary"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginStart="32dp"
        android:layout_marginEnd="32dp"
        android:layout_marginBottom="16dp"
        android:text="@string/ChangeNumberFragment__continue"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/change_number_enter_phone_number_scroll" />

</androidx.constraintlayout.widget.ConstraintLayout>