On Wednesday, 11 April 2012 16:06:58 UTC+1, MagouyaWare wrote: > > I have an app that uses two apk's... One is the free one, and the paid one > acts as a plugin to unlock features in the free one. I developed this > before in-app purchasing was available, but I don't know if I would have > used in-app purchasing had it been available for use due to all the drama > with patent trolls (you know who you are Lodsys)... > > But what worked for me was this: > > 1. Put ALL functionality in the free app > 2. Give both apps the same sharedUserId (there are some unintended > side effects of this, and Dianne Hackborne often recommends you don't use > it, but I think it is a good fit for my case). > 3. Put all the LVL code in your paid app... When the license check > happens, set a preference value (encrypted) indicating whether it > succeeded > or not > 4. Create a service as part of the paid app that your free app can > call to initiate the LVL check > 5. In your free app, read the same (encrypted) preference that is set > in the paid app to determine if you should run in free or paid mode > > It seems like a bit of work but it wasn't all that hard to actually > implement. My paid app actually does nothing other than the LVL check > through the service. It has a launchable activity in case users get > confused but all it does it launch the free app and quit. > > On a side note... Does anyone know if anything has gotten resolved with > the in-app purchasing fiasco with Lodsys? I know Apple contends that their > developers are safe because their license covers them... I haven't heard of > anything official from Google though... > Thanks, > Justin Anderson > MagouyaWare Developer > http://sites.google.com/site/magouyaware > > > 2012/4/11 Kostya Vasilyev > >> And to add two more cents: in-app items don't show in the user's >> purchases list in Market... scratch that, Google Play application on the >> device. >> >> Sometimes this raises questions about whether they'd have to be >> repurchased - even though they don't, obviously not every user understands >> this. >> >> -- K >> >> 11 апреля 2012 г. 16:42 пользователь Latimerius написал: >> >> On Wed, Apr 11, 2012 at 1:47 PM, Mark Murphy wrote: >>> > On Wed, Apr 11, 2012 at 7:39 AM, Iain King wrote: >>> >> Everyone who releases a >>> >> free version seems to do it by releasing two different apps - I'd >>> rather >>> >> avoid that if I can. >>> > >>> > Then use in-app purchasing. Only distribute the free app, and have the >>> > app upgrade itself to paid (e.g., unlocking features) if the user buys >>> > the upgrade through in-app purchasing. >>> >>> Be aware though that in-app purchasing doesn't take care of content >>> delivery. In practice, that makes it quite a different beast from the >>> two app model if you have content to deliver in response to purchase. >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Android Developers" group. >>> To post to this group, send email to [email protected] >>> To unsubscribe from this group, send email to >>> [email protected] >>> 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 post to this group, send email to [email protected] >> To unsubscribe from this group, send email to >> [email protected] >> For more options, visit this group at >> http://groups.google.com/group/android-developers?hl=en >> > > Doesn't that end up with your user ending up with both apps installed anyway? So at some later time when they are trying to clear up space, they still see YourGame Demo is installed, and nuke it? Probably not that big an issue, but might be unexpected for them. Regardless, it still requires you to build 2 different apps, which is the main annoyance for doing it that way. Definitely better than In App (which looks fiddly and much more likely to foul up than basic per app authentication), but if I'm going 2-app I'm gonna keep it simple.
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