I do this with AppSwipe! on the Market. The main app is free and there is
also a donate key app. The package names are as follows:
AppSwipe!: com.magouyaware.appswipe
Donate Key: com.magouyaware.appswipe2
To determine if the user has paid for additional features I have this class:
public class AppMode
{
public static boolean isDonateMode(Context context)
{
PackageManager mgr = context.getPackageManager();
int sigMatch = mgr.checkSignatures(context.getPackageName(),
"com.magouyaware.appswipe2");
return sigMatch == PackageManager.SIGNATURE_MATCH;
}
}
And I can do things like this:
if (AppMode.isDonateMode(myContext)
{
//Unlock features here
}
It works quite nicely...
Thanks,
Justin Anderson
MagouyaWare Developer
http://sites.google.com/site/magouyaware
On Wed, Mar 9, 2011 at 8:40 PM, PatternMusic <[email protected]> wrote:
> Kindle is allowed to "circumvent the Market" because Amazon is selling
> "digital
> content or goods that may be consumed outside of the application itself".
> This is not the same as unlocking a feature (e.g. the removal of ads) in
> ones app.
>
> See "*Paid and Free Applications" *in* *
> http://www.android.com/us/developer-content-policy.html
>
> There are many apps on the Market that are free but unlock additional
> features through additional APK downloads from the Market. I don't know the
> best practice for an IPC unlock mechanism, but it wouldn't be hard to do,
> and that would seem to comply with Google's requirement of using the
> Market's Payment Processor.
>
> The imminent in-app payment system will no doubt be prettier.
>
> Disclaimer: IANAL.
>
> - Richard Lawler
>
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