KioskActivity.java

 private void provisionOwner() { 
        DevicePolicyManager manager =
                (DevicePolicyManager) getSystemService(Context.DEVICE_POLICY_SERVICE);
        ComponentName componentName = BasicDeviceAdminReceiver.getComponentName(this);
 
 
        if(!manager.isAdminActive(componentName)) {
            Intent intent = new Intent(DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN);
            intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, componentName);
            startActivityForResult(intent, 0);
            return; 
        } 
 
 
        if (manager.isDeviceOwnerApp(getPackageName()))
            manager.setLockTaskPackages(componentName, new String [] {getPackageName()});
    }