1<device-admin xmlns:android="http://schemas.android.com/apk/res/android" android:visible="false"> 2 <headless-system-user headless-device-owner-mode="single_user" device-owner-mode="single_user" /> 3 <uses-policies> 4 <reset-password /> 5 <limit-password /> 6 <expire-password /> 7 <wipe-data /> 8 <watch-login /> 9 <disable-keyguard-features /> 10 <force-lock /> 11 <disable-camera /> 12 </uses-policies> 13</device-admin> 14