qr_code_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <RelativeLayout
            android:id="@+id/title_back"
            style="@style/title">

            <TextView
                android:id="@+id/tv_title"
                style="@style/text_title"
                android:text="@string/customer_acceptance" />

            <ImageView
                android:id="@+id/receiving_back"
                style="@style/title_image_back" />
        </RelativeLayout>

        <ImageView style="@style/card_line" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:gravity="center_horizontal"
            android:orientation="vertical">

            <ImageView
                android:id="@+id/qr_code"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginTop="100dp" />

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginTop="@dimen/dp_15"
                android:text="@string/scan_code_for_appointment"
                android:textSize="18sp" />

        </LinearLayout>
    </LinearLayout>
</layout>