CODEWITHSUNDEEP
androidandroid-management-api
Andrew Wizzard
Andrew Wizzard

Reputation: 93

Android Management API's Delegation Scopes do not seem to be acquired by Companion app

Following the Android Management API reference, we've configured our Android Companion app to be able to : enable system apps, hide and unhide packages.

We've added the following information in our policy configuration:

{
  '
  '
  '
  "applications": [
    {
      "packageName": "com.domain.app",
      "installType": "REQUIRED_FOR_SETUP",
      "defaultPermissionPolicy": "GRANT",
      "delegatedScopes": [
        "ENABLE_SYSTEM_APP",
        "PACKAGE_ACCESS"
      ]
    }
  ],
  '
  '
  '
}

Then, in our Android Companion app, we've added the following lines of code in compliance with Google documentation here and here :

DevicePolicyManager dpm = (DevicePolicyManager) mContext.getSystemService(Context.DEVICE_POLICY_SERVICE);
ComponentName admin = new ComponentName(mContext, DeviceAdminReceiver.class);

// Iterate through system application package names list
for (String packageName : systemAppsList) {
  if (packageName != null && !packageName.equals("")) {
    try {
      // Re-enable a system app that was disabled by default when the user was initialized
      dpm.enableSystemApp(admin, packageName);

      // Unhide a package (it could be any app : system, managed, etc...)
      dpm.setApplicationHidden(admin, packageName, false);
    } catch (SecurityException e) {
      e.printStackTrace();
      Log.e(TAG, e.getMessage());
    }
  }
}

We expect the Android launcher to show the enabled system apps, but Android catches a SecurityException and prints the following error log :

No active admin ComponentInfo{com.domain.app/android.app.admin.DeviceAdminReceiver}

Do you have any idea about what could be wrong ?

Upvotes: 5

Views: 1698

Answers (1)

issamux
issamux

Reputation: 1415

in your method call , set admin param to null if you are using delegated scope as explained in Android Documentation

ComponentName: Which DeviceAdminReceiver this request is associated with, or null if the caller is a package access delegate. This value must never be null.

a bit confusing,admin param can be set to null if using delegated scope and in the same time just after ... this value must never be null , (Great Google)

Upvotes: 6

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