Hello, I was really wondering the same thing (for a different purpose), however no-one clearly answered your original question here, so I've actually tested it directly.
First thing, I had to modify the LVL library to take a package name and version code as parameter instead of using the current app's information automatically. Without the other paid app installed, I received a ERROR_INVALID_PACKAGE_NAME. Once the other paid app was installed, I unfortunately received a ERROR_NON_MATCHING_UID. As I couldn't find any UID information in the LVL library, the answer is now pretty clear: it's not possible. On Thursday, January 6, 2011 1:27:25 AM UTC+1, andfan22 wrote: > > Hi all > > Just wondering if I can use LVL to check that the user is licensed to > use a DIFFERENT app from the current one -- ie. one with a different > package name. > > Why would I want to do this? I'm developing an app which I'm > considering publishing using a free + pro license model. The main app > would be a free, ad supported app. To turn off ads the user would > purchase a pro license key from the market (published as a paid app > containing no functionality). The user would continune to use the app > that was downloaded for free, which checks if the paid app is > installed, and if so it disables ads. I prefer this model to a fully > featured paid app model, as it eliminates the need to migrate data > from the free version to the paid when the user upgrades. > > Under this model I would like the free app to check if the paid app is > installed, and if so the free app would then use LVL to check if the > user has purchased the paid app via the market. Will it be possible > for the free app to pass the package name of the paid app to LVL, and > to get back a result confirming whether the paid app has been > purchased or not? > > Looking at the LVL source code I suspect I can do this by modifying > the constructor of LicenseChecker to set mPAckageName to a supplied > argument rather than setting it to mContext.getPackageName(). > > Are there any gotcha's I may be missing? > > Thanks ... > -- 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 --- You received this message because you are subscribed to the Google Groups "Android Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
