Thanks for your reply. But I think I should learn Visual Basic before starting with B4A.
Because I don't know properly how to write VB codes, how to use array/loop etc in Visual Basic. So any good tutorial to learn those before using b4a?
I do not think it is much necessary. I too don't have any prior VB code knowledge, but having not much trouble with B4A. Seeing examples, tutorials etc.
I think you should first follow the example shown in the Beginner's Guide. After that start a project, any project. At this time when you find new things, for example 'list', read the documentation and search the forum to know about this.
By the way, I am not a professional android developer and I don't have any intention to make app for selling on google market/play. I am just a hobbyist and love to program (trying), on this interesting small OS, which has many things.
Best regards.