[android-developers] Re: Is there a way to determine if a user has purchased a specific application in the market?
Taking this a bit further you could use the AndAppStore licensing system if you didn't want to run your own database. More info is at http://andappstore.com/AndroidApplications/licensing.jsp Al. -- * Written an Android App? - List it at http://andappstore.com/ * == Funky Android Limited is registered in England Wales with the company number 6741909. The registered head office is Kemp House, 152-160 City Road, London, EC1V 2NX, UK. The views expressed in this email are those of the author and not necessarily those of Funky Android Limited, it's associates, or it's subsidiaries. On Jul 21, 11:56 pm, Mike mmille...@gmail.com wrote: You could get a unique ID from the user's phone, refer to this blog post:http://strazzere.com/blog/?p=116 Then, instruct the user to enter the unique ID when they submit their donation, and keep this information in a database. Voila! You can now determine who has donated by making a web service call to your server from your game. On Jul 21, 3:34 pm, Mike michaeldouglaskra...@gmail.com wrote: Use case goes like this: 1) Dev puts game for sale on Android market hoping to make lots of $$ $. 2) Dev makes $50 in a month, cries a little, realizes his game is languishing in the ratings so makes it free. 3) Game does really well and gets 50,000 downloads. 4) Dev still wants to make some $$$ off his game, so adds a donate feature to app which points users to another app dev has created in the marketplace where they can donate by buying the app. 5) Dev wants to reward those who have donated by providing new features only to them. So... how do I go about determining if any given user has purchased either my original app, or my donate app so that I can unlock functionality? I'd like to determine this even if the user no longer has the app installed on their phone. Then android market app seems to know this which is how it knows not to charge the user again for the same app they've already paid for. - Mike --~--~-~--~~~---~--~~ 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: Is there a way to determine if a user has purchased a specific application in the market?
Assuming they still had it installed it you could just query the PackageManager for it. Otherwise I dunno, maybe it's possible to write stuff into the SharedPreferences somehow On Jul 21, 11:34 pm, Mike michaeldouglaskra...@gmail.com wrote: Use case goes like this: 1) Dev puts game for sale on Android market hoping to make lots of $$ $. 2) Dev makes $50 in a month, cries a little, realizes his game is languishing in the ratings so makes it free. 3) Game does really well and gets 50,000 downloads. 4) Dev still wants to make some $$$ off his game, so adds a donate feature to app which points users to another app dev has created in the marketplace where they can donate by buying the app. 5) Dev wants to reward those who have donated by providing new features only to them. So... how do I go about determining if any given user has purchased either my original app, or my donate app so that I can unlock functionality? I'd like to determine this even if the user no longer has the app installed on their phone. Then android market app seems to know this which is how it knows not to charge the user again for the same app they've already paid for. - Mike --~--~-~--~~~---~--~~ 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: Is there a way to determine if a user has purchased a specific application in the market?
Hey there Mr Chaz! :) Hmmm... I think I'm leaning towards just requiring people that buy my donate app to keep it on their phones and I'll look for it using the PackageManager as you suggested. I really don't want to deal with maintaining a web server and a backend database if I don't have to. I'm making next to nothing off of this anyway, so the thought of spending yet more money on infrastructure seems a little premature at this point. - Mike On Jul 22, 5:30 am, MrChaz mrchazmob...@googlemail.com wrote: Assuming they still had it installed it you could just query the PackageManager for it. Otherwise I dunno, maybe it's possible to write stuff into the SharedPreferences somehow On Jul 21, 11:34 pm, Mike michaeldouglaskra...@gmail.com wrote: Use case goes like this: 1) Dev puts game for sale on Android market hoping to make lots of $$ $. 2) Dev makes $50 in a month, cries a little, realizes his game is languishing in the ratings so makes it free. 3) Game does really well and gets 50,000 downloads. 4) Dev still wants to make some $$$ off his game, so adds a donate feature to app which points users to another app dev has created in the marketplace where they can donate by buying the app. 5) Dev wants to reward those who have donated by providing new features only to them. So... how do I go about determining if any given user has purchased either my original app, or my donate app so that I can unlock functionality? I'd like to determine this even if the user no longer has the app installed on their phone. Then android market app seems to know this which is how it knows not to charge the user again for the same app they've already paid for. - Mike --~--~-~--~~~---~--~~ 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: Is there a way to determine if a user has purchased a specific application in the market?
So, assuming Android 1.5 is running on the phone I am planning on
doing the following:
Of course, the other fun thing about trying to test this is that I
can't buy my own friggin' app through the market. I'm hoping others
can look at this code and help verify that checking for uninstalled
packages using the GET_UNINSTALLED_PACKAGES flag will do what I think
it will.
private Boolean isUserHasPaid = null;
private static final String DONATE_PACKAGE_NAME = my.donate.package;
/**
* Determines if a user has donated.
*
* This is determined by checking with the PackageManager and seeing
if the
* donate app is currently installed, or if it is not installed, we'll
check to see
* if they had it installed and uninstalled it.
*
* @param ctx The context
*
* @return true if user has donated, else false
*/
public boolean isUserHasPaid(Context ctx)
{
if (isUserHasPaid == null)
{
PackageInfo pi = null;
try
{
pi =
ctx.getPackageManager().getPackageInfo(DONATE_PACKAGE_NAME,
PackageManager.GET_ACTIVITIES);
}
catch (NameNotFoundException e)
{
// Eat this exception - pi will be null if the package
was not
found
}
if (pi == null)
{
try
{
pi =
ctx.getPackageManager().getPackageInfo(DONATE_PACKAGE_NAME,
PackageManager.GET_UNINSTALLED_PACKAGES);
}
catch (NameNotFoundException e)
{
// Eat this exception - pi will be null if the
package was not
found
}
}
isUserHasPaid = Boolean.valueOf(pi != null);
}
return isUserHasPaid;
}
On Jul 22, 10:10 am, Mike michaeldouglaskra...@gmail.com wrote:
Hey there Mr Chaz! :)
Hmmm... I think I'm leaning towards just requiring people that buy my
donate app to keep it on their phones and I'll look for it using the
PackageManager as you suggested.
I really don't want to deal with maintaining a web server and a
backend database if I don't have to. I'm making next to nothing off
of this anyway, so the thought of spending yet more money on
infrastructure seems a little premature at this point.
- Mike
On Jul 22, 5:30 am, MrChaz mrchazmob...@googlemail.com wrote:
Assuming they still had it installed it you could just query the
PackageManager for it.
Otherwise I dunno, maybe it's possible to write stuff into the
SharedPreferences somehow
On Jul 21, 11:34 pm, Mike michaeldouglaskra...@gmail.com wrote:
Use case goes like this:
1) Dev puts game for sale on Android market hoping to make lots of $$
$.
2) Dev makes $50 in a month, cries a little, realizes his game is
languishing in the ratings so makes it free.
3) Game does really well and gets 50,000 downloads.
4) Dev still wants to make some $$$ off his game, so adds a donate
feature to app which points users to another app dev has created in
the marketplace where they can donate by buying the app.
5) Dev wants to reward those who have donated by providing new
features only to them.
So... how do I go about determining if any given user has purchased
either my original app, or my donate app so that I can unlock
functionality? I'd like to determine this even if the user no longer
has the app installed on their phone.
Then android market app seems to know this which is how it knows not
to charge the user again for the same app they've already paid for.
- Mike
--~--~-~--~~~---~--~~
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: Is there a way to determine if a user has purchased a specific application in the market?
You could get a unique ID from the user's phone, refer to this blog post: http://strazzere.com/blog/?p=116 Then, instruct the user to enter the unique ID when they submit their donation, and keep this information in a database. Voila! You can now determine who has donated by making a web service call to your server from your game. On Jul 21, 3:34 pm, Mike michaeldouglaskra...@gmail.com wrote: Use case goes like this: 1) Dev puts game for sale on Android market hoping to make lots of $$ $. 2) Dev makes $50 in a month, cries a little, realizes his game is languishing in the ratings so makes it free. 3) Game does really well and gets 50,000 downloads. 4) Dev still wants to make some $$$ off his game, so adds a donate feature to app which points users to another app dev has created in the marketplace where they can donate by buying the app. 5) Dev wants to reward those who have donated by providing new features only to them. So... how do I go about determining if any given user has purchased either my original app, or my donate app so that I can unlock functionality? I'd like to determine this even if the user no longer has the app installed on their phone. Then android market app seems to know this which is how it knows not to charge the user again for the same app they've already paid for. - Mike --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
