[android-developers] Re: Multiple APKs installed to the same location
I'd still be skeptical from a security perspective Multiple jurisdictal authorities have approved our file authentication technology. What kind of code do you need? It's game display logic -- take commands from the game server display appropriately. There are hundreds of games and they will not all fit on a cell phone. Players must be able to selectively download them. An individual game consists of code (Game.so) and assets, all contained within a .zip file. It's not something you could encode into some bytecode like instruction language or dsl? It doesn't matter that it's C++ code because it's running in a walled- off sandbox anyway. The worst-case scenario is someone else's app tries to load run our game code, but that will fail because they cannot authenticate with our servers. That doesn't mean Google will let me do it, just that it's not the problem many think it is. -BT -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: Multiple APKs installed to the same location
On Thu, Feb 2, 2012 at 2:52 PM, BT bunglestwan...@gmail.com wrote: I'd still be skeptical from a security perspective Multiple jurisdictal authorities have approved our file authentication technology. Wow! Very impressive! There are certainly no problems, you shouldn't have even bothered asking! kris -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: Multiple APKs installed to the same location
On Feb 2, 2012, at 9:52 PM, BT wrote: There are hundreds of games and they will not all fit on a cell phone. Players must be able to selectively download them. An individual game consists of code (Game.so) and assets, all contained within a .zip file. So your goal is to create a separate market within one .apk file? AFAIK this might be doable using your main application's internal storage for example. But assuming this is doable, I'd guess it's easiest done without introducing multiple .apks but creating your own logics for dynamic game addition. -- H -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Multiple APKs installed to the same location
BT schrieb:
Can I create multiple .apk's that install ADDITIVELY to the same /data/
apps/MyApp location?
In my particular case I have add-on modules that are built as C++ NDK
share objects: Feature1.so, Feature2.so, Feature3.so, etc. I don't
know what these will be ahead of time and the user must be able to
selectively install only those features they want.
I'm pretty sure iOS does this with in-app purchases, but not sure how
to do it on Android?
Thanks,
BT
Theoretically:
android:sharedUserId
The name of a Linux user ID that will be shared with other
applications. By default, Android assigns each application its own
unique user ID. However, if this attribute is set to the same value for
two or more applications, they will all share the same ID — provided
that they are also signed by the same certificate. Application with the
same user ID can access each other's data and, if desired, run in the
same process.
http://developer.android.com/guide/topics/manifest/manifest-element.html#uid
android:process
The name of a process where all components of the application
should run. Each component can override this default by setting its own
process attribute.
By default, Android creates a process for an application when the
first of its components needs to run. All components then run in that
process. The name of the default process matches the package name set by
the manifest element.
By setting this attribute to a process name that's shared with
another application, you can arrange for components of both applications
to run in the same process — but only if the two applications also share
a user ID and be signed with the same certificate.
If the name assigned to this attribute begins with a colon (':'), a
new process, private to the application, is created when it's needed. If
the process name begins with a lowercase character, a global process of
that name is created. A global process can be shared with other
applications, reducing resource usage.
http://developer.android.com/guide/topics/manifest/application-element.html#proc
I didn't try (yet) ...
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[android-developers] Re: Multiple APKs installed to the same location
Different APK's will have different package names and be installed in different directories, so in short, the answer is no. -John Coryat -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Multiple APKs installed to the same location
Thanks, John. That's unfortunate. How about downloading FeatureX.so to the Downloads directory, calling dlopen(featurex.so), then calling the additional library functions? Thx, BT -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Multiple APKs installed to the same location
You're pretty much stuck sending a complete APK and dealing with additional features using switches inside the app itself. There may be other ways to handle this but I am unaware of them. -John Coryat -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: Multiple APKs installed to the same location
On Wed, Feb 1, 2012 at 6:16 PM, BT bunglestwan...@gmail.com wrote: How about downloading FeatureX.so to the Downloads directory, calling dlopen(featurex.so), then calling the additional library functions? That would be a question for the android-ndk Google Group. AFAIK, though, this is not supported. Not to mention that it is highly insecure, because then anyone can replace your .so with one laden with malware, and your app will happily execute it, with the malware inheriting all your permissions. You can certainly have independent APKs, with their own independent NDK libraries, that communicate through normal Android IPC mechanisms: services (commands or binding), broadcasts, etc. -- Mark Murphy (a Commons Guy) http://commonsware.com | http://github.com/commonsguy http://commonsware.com/blog | http://twitter.com/commonsguy Android 4.0 Programming Books: http://commonsware.com/books -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Multiple APKs installed to the same location
Good point about security, but this isn't a general consumer application. The additional libraries can only be downloaded from our internal servers and only over our internal wi-fi, plus they're hashed verified with our internal security server prior to execution. We have to run on iOS too, which I believe is even more restrictive, so we'll probably need to consider more alternatives. But the ideal solution would've been some way for us to incrementally add shared libraries to our app's install directory. -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
Re: [android-developers] Re: Multiple APKs installed to the same location
On Wed, Feb 1, 2012 at 7:35 PM, BT bunglestwan...@gmail.com wrote: Good point about security, but this isn't a general consumer application. The additional libraries can only be downloaded from our internal servers and only over our internal wi-fi, plus they're hashed verified with our internal security server prior to execution. We have to run on iOS too, which I believe is even more restrictive, so we'll probably need to consider more alternatives. But the ideal solution would've been some way for us to incrementally add shared libraries to our app's install directory. I'd still be skeptical from a security perspective, executing code you can't really be sure about is always a little shady (yes, I know you said you checked it). What kind of code do you need? It's not something you could encode into some bytecode like instruction language or dsl? kris -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
