Bug 8764 - Unable to wrap M4A apk to BB10
Summary: Unable to wrap M4A apk to BB10
Status: RESOLVED UPSTREAM
Alias: None
Product: Android
Classification: Xamarin
Component: General ()
Version: 4.8.x
Hardware: PC Windows
: Normal enhancement
Target Milestone: ---
Assignee: Bugzilla
URL:
Depends on:
Blocks:
 
Reported: 2012-12-05 04:35 UTC by Dylan
Modified: 2012-12-05 14:27 UTC (History)
3 users (show)

Tags:
Is this bug a regression?: ---
Last known good build:


Attachments
conversion log (10.68 KB, text/plain)
2012-12-05 04:35 UTC, Dylan
Details


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Status:
RESOLVED UPSTREAM

Description Dylan 2012-12-05 04:35:17 UTC
Created attachment 3057 [details]
conversion log

So I was really excited to see that on the new BB10 platform that you can repackage the apk to a bar file to make it compatible with the platform:
http://developer.blackberry.com/android/

This potentially means that Xamarin, without having to do very much, has the ability to run on an additional platform!

However in the conversion process there were many problems. I tried to convert a brand new M4A project (the sample one with a single button and event) to the bar format and I was attacked by a lot of issues in the conversion process. The log is attached. 

Will it ever be possible for M4A to produce apk files that are able to be converted?
Comment 1 PJ 2012-12-05 12:48:01 UTC
Very interesting stuff Dylan. Thanks for the feature request. Unfortunately, this is not currently slated for implementation / compatibility fixing. 

Stay subscribed to this bug to receive any updates.
Comment 2 Jonathan Pryor 2012-12-05 14:27:10 UTC
Xamarin will not be able to support this until Blackberry removes their restrictions on the inclusion of native code:

http://developer.blackberry.com/android/apisupport/unsupportedapi_blackberry10_software_features.html

> Unsupported Software Features
> ...
> * Apps that utilize native code bundled into their APK file

My gut feeling is that this isn't easily solvable: BlackBerry uses QNX, not Linux, and BlackBerry uses it's own libc and dynamic library support, etc. I would be surprised if it were easily possible for BlackBerry to load arm-linux-androideabi ELF binaries as-is, plus fully implement JNI support (and whatever else is needed to support Java `native` methods...).

Regardless, there's nothing Xamarin/Mono for Android can do on this front until BlackBerry supports native code in Android apps.

An alternative approach would be to skip Android support, and go directly to BlackBerry support:

http://forums.xamarin.com/discussion/comment/485/#Comment_485