AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:tools="http://schemas.android.com/tools" >
 
  <uses-permission android:name="android.permission.CAMERA" />
 
  <uses-feature
      android:name="android.hardware.camera"
      android:required="true" />
</manifest>