Using JCo to connect SAP with Android

I have not tried it but it does not seem feasible. The reason being if you are planning to use JCo library, you will require a native library but that is still not available for Android environment.

You can try an alternative for it. You can create a Web Service either a SOAP or REST which communicates to SAP via JCo. Then, you can use the service to do two way communication with SAP.

The result of communication can then be shared to Android environment in either JSON or XML format as per requirement.