zumo_2.0_android/app/src/main/res/layout/dialog_alert.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
  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="match_parent"
  android:layout_height="wrap_content"
  android:layout_marginStart="37dp"
  android:layout_marginEnd="37dp"
  tools:background="@color/C888888">

  <android.support.constraint.ConstraintLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/rectangle_radius_4"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent">

    <TextView
      android:id="@+id/text_view_title"
      android:layout_width="0dp"
      android:layout_height="wrap_content"
      android:layout_marginStart="10dp"
      android:layout_marginTop="35dp"
      android:layout_marginEnd="10dp"
      android:lineSpacingExtra="7sp"
      android:textColor="@color/C000000"
      android:textSize="18sp"
      android:textStyle="bold"
      app:layout_constrainedWidth="true"
      app:layout_constraintBottom_toTopOf="@+id/text_view_dialog_message"
      app:layout_constraintEnd_toEndOf="parent"
      app:layout_constraintHorizontal_chainStyle="packed"
      app:layout_constraintStart_toStartOf="parent"
      app:layout_constraintTop_toTopOf="parent"
      tools:text="title"
      tools:visibility="gone"/>


    <TextView
      android:id="@+id/text_view_dialog_message"
      android:layout_width="0dp"
      android:layout_height="wrap_content"
      android:layout_marginStart="25dp"
      android:layout_marginTop="20dp"
      android:layout_marginEnd="25dp"
      android:layout_marginBottom="10dp"
      android:lineSpacingExtra="6sp"
      android:textColor="@color/C000000"
      app:layout_constrainedWidth="true"
      app:layout_constraintBottom_toTopOf="@+id/button_layout"
      app:layout_constraintEnd_toEndOf="parent"
      app:layout_constraintStart_toStartOf="parent"
      app:layout_constraintTop_toBottomOf="@+id/text_view_title"
      app:layout_goneMarginTop="35dp"
      tools:text="@string/network_disconnected_message_detail_dialog"
      />

    <android.support.constraint.ConstraintLayout
      android:id="@+id/button_layout"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      app:layout_constraintBottom_toBottomOf="parent"
      app:layout_constraintEnd_toEndOf="parent"
      app:layout_constraintStart_toStartOf="parent"
      app:layout_constraintTop_toBottomOf="@+id/text_view_dialog_message">


      <TextView
        android:id="@+id/text_view_write_app_review"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="24dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="24dp"
        android:layout_marginBottom="8dp"
        android:gravity="center"
        android:includeFontPadding="false"
        android:minWidth="100dp"
        android:padding="7dp"
        android:textColor="@color/C000000"
        android:textSize="14sp"
        android:textStyle="bold"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        tools:text="abcdabcdabcdabcdabcd"
        />

    </android.support.constraint.ConstraintLayout>
  </android.support.constraint.ConstraintLayout>
</android.support.constraint.ConstraintLayout>