B4J Question Use B4I or B4A to convert to B4J

[dieterp]

I have just completed porting a fairly large B4A Android app to B4I. I now want to port the app over to B4J. Will it be best for me to use the B4A version as the base app or the b4I app (Which one is closer to B4J)?

One of the main things that slowed down the Android to iOS port was the way that Cursors/Resultsets are handled differently on the platforms. I had a quick look at B4J and it looks like it uses the same structure for Resultsets as B4I. Since querying the SQLite db is such a big part of the app, would using the B4I app then as the base be the better option?

 

[aberezhnykh]

In my opinion, В4А and В4J are closer to each other.

 

[klaus]

Be aware that in B4A you can also use ResultSet to have all SQLite queries the same in all three products.
You may have a look at chapter 10 Differences B4J <> B4A in the B4J Beginner's Guide.
You may also have a look at the B4x Booklets, especially B4x Basic Language.

 

[Erel]

Be aware that in B4A you can also use ResultSet to have all SQLite queries the same in all three products.

+1

In many aspects B4J is closer to B4i:

- No special modules with their own life cycle.
- Code modules can handle events.
- You need to handle the page resize event.

 

[dieterp]

Thanks for the feedback guys. It looks like it might be better then to use B4i as the base. The resultsets and the page resize handling were definitely 2 of the things that were the most challenging to handle in the original port. I will report back on my own findings once the port is completed.

 

[Erel]

The resultsets and the page resize handling were definitely 2 of the things that were the most challenging to handle in the original port.

Reread Klaus post. You can also use ResultSet in B4A.

 

[dieterp]

I'll have a read through that. Thanks chaps!