1<PreferenceScreen xmlns:app="http://schemas.android.com/apk/res-auto" 2 xmlns:android="http://schemas.android.com/apk/res/android"> 3 <Preference 4 app:key="Scan" 5 app:title="@string/trusted_scan_now_title" 6 app:selectable="false" 7 app:summary="@string/trusted_scan_now_summary"/> 8 9 <com.android.settingslib.widget.LayoutPreference 10 android:key="qr_code" 11 app:selectable="false" 12 android:layout="@layout/layout_trusted_qrcode" /> 13</PreferenceScreen> 14