I am trying to make a Unity app go into kiosk mode by using COSU (Corporate Owned Single Use) functionality.
My plan was to first get things working using just Android, so I followed the tutorial offered by Google Code Labs
After I got this working, my plan was to then figure out how to integrate this into my Unity project. I followed this youtube video that showed how to make a plugin that can be called from Unity.
When I build my project, I try to execute the following command
adb shell dpm set-device-owner com.modalvr.unityplugin/.DeviceAdminReceiver
However, I keep getting the following error
Error: Unknown admin: ComponentInfo{com.modalvr.unityplugin/com.modalvr.unityplugin.DeviceAdminReceiver}
I wonder if Unity is not merging the AndroidManifest.xml files together correctly. Here is my AndroidManifest.xml file from plugin.
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.modalvr.unityplugin">
<application android:allowBackup="true" android:label="@string/app_name" android:supportsRtl="true">
<receiver
android:name="com.modalvr.unityplugin.DeviceAdminReceiver"
android:description="@string/app_name"
android:label="@string/app_name"
android:permission="android.permission.BIND_DEVICE_ADMIN">
<meta-data
android:name="android.app.device_admin"
android:resource="@xml/device_admin_receiver" />
<intent-filter>
<action android:name="android.intent.action.DEVICE_ADMIN_ENABLED"/>
<action android:name="android.intent.action.PROFILE_PROVISIONING_COMPLETE"/>
<action android:name="android.intent.action.BOOT_COMPLETED"/>
</intent-filter>
</receiver>
</application>
</manifest>
I copied it and the classes.jar file into Unity's Assets/Plugins/Android/libs folder
I am able to successfully call functions in my plugin, so the plugin appears to be set up correctly.
For reference, this is my C# code that calls into the plugin
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class LockManager : MonoBehaviour {
#if UNITY_ANDROID
private AndroidJavaObject playerActivityContext = null;
#endif
public void SaveContext() {
#if UNITY_ANDROID
// First, obtain the current activity context
using (var actClass = new AndroidJavaClass("com.unity3d.player.UnityPlayer")) {
playerActivityContext = actClass.GetStatic<AndroidJavaObject>("currentActivity");
}
var plugin = new AndroidJavaClass("com.modalvr.unityplugin.PluginClass");
plugin.CallStatic<bool>("setContext", playerActivityContext);
#endif
}
public void LockButtonClicked() {
#if UNITY_ANDROID
SaveContext();
var plugin = new AndroidJavaClass("com.modalvr.unityplugin.PluginClass");
bool retVal = plugin.CallStatic<bool>("lock", 7);
#endif
}
public void UnlockButtonClicked() {
#if UNITY_ANDROID
SaveContext();
var plugin = new AndroidJavaClass("com.modalvr.unityplugin.PluginClass");
bool retVal = plugin.CallStatic<bool>("unlock", 7);
#endif
}
}
And this is the java class that defines those functions.
package com.modalvr.unityplugin;
import android.app.Activity;
import android.content.Context;
import android.util.Log;
public class PluginClass {
private static Context context;
public static boolean setContext(Context ctx) {
context = ctx;
return true;
}
public static boolean lock(int number) {
Log.d("SOME TAG", "onReceive Lock");
Activity activity = (Activity) context;
activity.startLockTask();
return true;
}
public static boolean unlock(int number) {
Log.d("SOME TAG", "onReceive Unlock");
Activity activity = (Activity) context;
activity.stopLockTask();
return true;
}
}
It looks like Unity generates 2 XML files that it puts in Temp/StagingArea
AndroidManfist.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.ModalVR.KioskPluginTest" xmlns:tools="http://schemas.android.com/tools" android:versionName="1.0" android:versionCode="1" android:installLocation="preferExternal">
<supports-screens android:smallScreens="true" android:normalScreens="true" android:largeScreens="true" android:xlargeScreens="true" android:anyDensity="true" />
<application android:theme="@style/UnityThemeSelector" android:icon="@drawable/app_icon" android:label="@string/app_name" android:debuggable="false" android:isGame="true" android:banner="@drawable/app_banner">
<activity android:name="com.unity3d.player.UnityPlayerActivity" android:label="@string/app_name" android:screenOrientation="fullSensor" android:launchMode="singleTask" android:configChanges="mcc|mnc|locale|touchscreen|keyboard|keyboardHidden|navigation|orientation|screenLayout|uiMode|screenSize|smallestScreenSize|fontScale|layoutDirection">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
<category android:name="android.intent.category.LEANBACK_LAUNCHER" />
</intent-filter>
<meta-data android:name="unityplayer.UnityActivity" android:value="true" />
</activity>
</application>
<uses-sdk android:minSdkVersion="9" android:targetSdkVersion="25" />
<uses-feature android:glEsVersion="0x00020000" />
<uses-feature android:name="android.hardware.touchscreen" android:required="false" />
<uses-feature android:name="android.hardware.touchscreen.multitouch" android:required="false" />
<uses-feature android:name="android.hardware.touchscreen.multitouch.distinct" android:required="false" />
</manifest>
and AndroidManifest-main.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.ModalVR.KioskPluginTest" xmlns:tools="http://schemas.android.com/tools" android:installLocation="preferExternal" android:versionName="1.0" android:versionCode="1">
<supports-screens android:smallScreens="true" android:normalScreens="true" android:largeScreens="true" android:xlargeScreens="true" android:anyDensity="true" />
<application android:theme="@style/UnityThemeSelector" android:icon="@drawable/app_icon" android:label="@string/app_name" android:debuggable="true">
<activity android:name="com.unity3d.player.UnityPlayerActivity" android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<meta-data android:name="unityplayer.UnityActivity" android:value="true" />
</activity>
</application>
<uses-sdk android:minSdkVersion="9" android:targetSdkVersion="25" />
</manifest>
In neither of these files do I see the contents of my Android plugin AndroidManifest.xml I guess that is the issue. Do I need to do something to make the manifest files merge?
And for completeness, here is
DeviceAdminReceiver.java
package com.modalvr.unityplugin;
import android.content.ComponentName;
import android.content.Context;
/**
* Handles events related to the managed profile.
*/
public class DeviceAdminReceiver extends android.app.admin.DeviceAdminReceiver {
private static final String TAG = "DeviceAdminReceiver";
/**
* @param context The context of the application.
* @return The component name of this component in the given context.
*/
public static ComponentName getComponentName(Context context) {
return new ComponentName(context.getApplicationContext(), DeviceAdminReceiver.class);
}
}
Thanks in advance for any help. John Lawrie
