placeholder.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:visibility="visible"
    android:background="@color/white">



    <ImageView
        android:id="@+id/lackConnImg"
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:layout_marginTop="16dp"
        android:src="@drawable/tour_item"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />




    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@color/grey_transparent50"
        android:visibility="gone"
        tools:visibility="visible"
        >

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:textColor="@color/white"
            android:text="NO CONNECTION" />

    </FrameLayout>

    <Button
        android:id="@+id/btn_repeat"
        style="@style/Base.Widget.AppCompat.Button.Borderless"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="32dp"
        android:layout_marginTop="8dp"
        android:text="repeat"
        android:textSize="20sp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/lackConnImg" />
</android.support.constraint.ConstraintLayout>