How do I do that?
I did not follow any document as such. I tried out the SMPFlightManagementForAndroid example from SAP Mobile Platform and then tried to add the code for POST method from the example of Android Sample Application for SUP ODP 2.2 in the SMPFlightManagementForAndroid itself by adding a screen and class. Obviously it is not working out! 
Do you have any sample application which implements CRUD operations (for Android) in SMP 3.0? If so, can you attach it here? I'll take help from it then! 