This is not working on singed .apk.

<?xml version="1.0" encoding="utf-8"?>
<servers>
 <server name="XYZ.com Login"     url="https://myloginserver.cloudforce.com"/>
</servers>

From android native app login page using SalesforceSDK how can i hide/remove menu option.
I want to restict users they should not change server url.

 Iam facing an issue using SalesforceAndroidSDK that if once I logged in app through salesforce login page and I went to salesforce admin panel I disabled/freezed a user, But user is still able to walk in my application.
Is there any way to check programmatically runtime in android app that logged-in user active or inactive

 Iam facing an issue using SalesforceAndroidSDK that if once I logged in app through salesforce login page and I went to salesforce admin panel I disabled/freezed a user, But user is still able to walk in my application.
Is there any way to check programmatically runtime in android app that logged-in user still active or inactive

If any user is already logged in then how can we re-authenticate a user in background? on android