samples/Vault/AndroidManifest.xml

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

    <application
        android:label="@string/app_label"
        android:icon="@drawable/ic_lock_lock">
        <provider
            android:name=".VaultProvider"
            android:authorities="com.example.android.vault.provider"
            android:exported="true"
            android:grantUriPermissions="true"
            android:permission="android.permission.MANAGE_DOCUMENTS"
            android:enabled="@bool/isAtLeastKitKat">
            <intent-filter>
                <action android:name="android.content.action.DOCUMENTS_PROVIDER" />
            </intent-filter>
        </provider>
    </application>

</manifest>