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

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:padding="20dp">

    <TextView
        android:id="@+id/pin_reminder_title"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:text="@string/KbsReminderDialog__enter_your_signal_pin"
        style="@style/Signal.Text.Body"
        android:fontFamily="sans-serif-medium"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent" />

    <com.google.android.material.textfield.TextInputLayout
        android:id="@+id/pin_wrapper"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:paddingStart="80dp"
        android:paddingTop="40dp"
        android:paddingEnd="80dp"
        app:layout_constraintTop_toBottomOf="@id/pin_reminder_title"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent">

        <com.google.android.material.textfield.TextInputEditText
            android:id="@+id/pin"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:textColor="?attr/registration_lock_reminder_view_pin_text_color" />

    </com.google.android.material.textfield.TextInputLayout>

    <TextView
        android:id="@+id/reminder"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:lineSpacingMultiplier="1.3"
        android:paddingTop="40dp"
        android:paddingBottom="40dp"
        style="@style/Signal.Text.Preview"
        app:layout_constraintTop_toBottomOf="@id/pin_wrapper"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        tools:text="@string/KbsReminderDialog__to_help_you_memorize_your_pin" />

    <Button
        android:id="@+id/skip"
        style="@style/Button.Borderless"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/KbsReminderDialog__skip"
        app:layout_constraintTop_toTopOf="@id/submit"
        app:layout_constraintEnd_toStartOf="@id/submit"/>

    <Button
        android:id="@+id/submit"
        style="@style/Button.Primary"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/KbsReminderDialog__submit"
        app:layout_constraintTop_toBottomOf="@id/reminder"
        app:layout_constraintEnd_toEndOf="parent"/>

</androidx.constraintlayout.widget.ConstraintLayout>