1<?xml version="1.0" encoding="utf-8"?> 2<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 3 android:orientation="vertical" 4 android:layout_width="match_parent" 5 android:layout_height="wrap_content"> 6 7 <ImageView 8 android:id="@+id/qrCode" 9 android:contentDescription="@string/qr_code_description" 10 android:layout_gravity="center_horizontal" 11 android:layout_width="200dp" 12 android:layout_height="200dp" /> 13</LinearLayout>