zumo_2.0_android/app/src/main/res/layout/fragment_event.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="match_parent">


  <android.support.v4.view.ViewPager
    android:id="@+id/recycler_view_event"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="14dp"
    android:layout_marginBottom="35dp"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent"
    tools:background="@color/CF6F6F6"/>

  <android.support.design.widget.TabLayout
    android:id="@+id/tab_layout_event"
    android:layout_width="match_parent"
    android:layout_height="20dp"
    android:layout_marginBottom="18dp"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:tabBackground="@drawable/black_tab_selector"
    app:tabGravity="center"
    app:tabIndicatorHeight="0dp"
    app:tabPaddingEnd="6dp"
    app:tabPaddingStart="6dp"
    tools:background="@color/C000000"/>

  <android.support.constraint.ConstraintLayout
    android:id="@+id/layout_my_event"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginStart="25dp"
    android:layout_marginEnd="25dp"
    android:layout_marginBottom="25dp"
    android:background="@drawable/rectangle_black_radius_2"
    android:visibility="gone"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    tools:visibility="visible">

    <TextView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_marginTop="10dp"
      android:layout_marginBottom="10dp"
      android:gravity="center_horizontal"
      android:lineSpacingExtra="6sp"
      android:text="@string/my_event"
      android:textColor="@color/CFFFFFF"
      android:textSize="16sp"
      app:layout_constraintBottom_toBottomOf="parent"
      app:layout_constraintEnd_toEndOf="parent"
      app:layout_constraintStart_toStartOf="parent"
      app:layout_constraintTop_toTopOf="parent"
      />

  </android.support.constraint.ConstraintLayout>

</android.support.constraint.ConstraintLayout>