Customized XMPP Chat Application

Hi There, I need a chat XMPP client with following functionality. 1. Registration: On first start of app asked for mobile no, his our api and waits for an SMS with validation code. Once registered stores jabberid securely. 2. Chat Group list: From backend we will map that user to multiple rooms and on first screen for registered users, list of all rooms/group user is mapped to should be presented. (user is made to enter all rooms). 3. User can select a group from the list to move to bubble chat window where standard chat activity is displayed. This is basic customization that we want we can discuss further. I have seen two open source projects for this. [login to view URL] (beautiful XMPP client but lack customization I need) and [login to view URL] (Is close to what I want but transport layer is proprietary and doesn't use XMPP. If transport layer can be changed? ***Snapshots/Visuals attached***