THe answer is NO!
Android and iOS are different operating systems, each with its specificitiees.
There are views similar in both system with the same code and othera are quite different.
Most of the user interface code needs to be
Most of all other, none uesr interface code, can be reused.
Anyway you need to define a new project in B4i. You cannot convert a B4A project directly into a B4i project.
You can convert a B4A layout into a B4i layout with the
B4ALayoutConverter.
You may have a look in the B4i Beginner's guide at chapter
11 Differences B4i <> B4A.