How to ship files on Android with Necessitas

Seba84

Hello everyone,

I am developping an app for Android using Necessitas that interfaces with a sqlite database. The problem is that this database already exists, and I need to ship it with the app. Do you know how to do this?

I think this problem is not database related but more generally to all files.

Thanks,
Seba84

sierdzio

Add it to qmake's DEPLOYMENTOLDERS or DEPLOYMENT ("link":http://qt-project.org/forums/viewthread/2556). You can also search on Necessitas forum, I remember there was a similar topic a few months ago ("link":https://groups.google.com/forum/#!forum/android-qt).

You can also use QRC, but that would give you a read-only DB, which is not nice :)

Seba84

Thanks sierdzio for the quick answer!

I tried to do the DEPLOYMENT method in your link and didn't worked, I must be doing something wrong. After investigating a bit the method in the net, here it is another solution that didn't work neither:

@
deployment.files = stock.dba
deployment.path = /data/data/org.kde.necessitas.example.test/files

INSTALLS += deployment
@

Taken from this "link":http://techbase.kde.org/Development/Tutorials/Necessitas.

Anyway I managed to upload the database file through my mail box (I send myself an email and downloaded the attachment in the tablet), then I found where it was stored (thanks to QFileDialog) and that was solved. For the time being I don't in how many tablets I will need to install the software, but it is clear that I cannot do this each time.

sierdzio

Well yes, that's clearly suboptimal :) Unfortunately I can't help you more - for my use cases, QRC is enough and that is all I've used to date (on droid, that is). I think it's possible to use some native Android tools to do that. If it's not on official forum, try searching on mailing list. I'm sure I've seen it somewhere.

sierdzio

Ah, there it is! Turned out it was in my bookmarks :P Here you go, hope that helps: "LINK":http://techbase.kde.org/Development/Tutorials/Necessitas.

Seba84

By the way, when trying to open the db, I found the QSQLITE driver not loaded error. This was simply solved by adding the following line in the main() function:
@ a.addLibraryPath("/data/data/org.kde.necessitas.ministro/files/qt/plugins"); @

just after the QApplication declaration.

sierdzio

That's a nice trick, thanks for sharing. Be sure to check out my last post, you might have missed it cause we posted almost simultaneously.

Seba84

Yes, we posted simultaneously.

You can see I used the same link for the code before. But I couldn't make it work. And I don't see in the compilation, deployment and execution phases anything saying that the files are being copied.

I used QFileDialog to explore the tablets storage media but I couldn't find the file (expect for the one I downloaded from my mailbox).

sierdzio

Sad. Regrettably, I have nothing more to add, then, apart from suggestion to ask on Necessitas forum and/ or mailing list.

mbnoimi

[quote author="Seba84" date="1335785134"]Yes, we posted simultaneously.

You can see I used the same link for the code before. But I couldn't make it work. And I don't see in the compilation, deployment and execution phases anything saying that the files are being copied.

I used QFileDialog to explore the tablets storage media but I couldn't find the file (expect for the one I downloaded from my mailbox).[/quote]

Did you find a solution for this issue? I'm suffering from it right now and I digget it deep into Necessitas mailing list and got nothing!