You should only sign your app with one cert. What you want to do can't be done, sorry. You should always sign your app with your own cert, not with different certs. The cert is the signature of who you are. If the cert is different, it is fundamentally a different app.
Fwiw, this is a bad thing that Amazon currently seems to be doing with their app store -- they are re-signing apps with their own certs, but not changing the package name. This is not how Android works and doing that kind of thing causes problems for developers. If you have multiple certs, each of those apps should use a different manifest package name. You can fairly easily build different versions of your app with different package names through the --rename-manifest-package aapt option. (Though you do need to take some care with it -- for example if you have a content provider this will leave it with the same authority name in both apps and thus they can't both be installed on the same device the same time.) On Thu, Jun 9, 2011 at 7:52 AM, Jalal <jalalso...@gmail.com> wrote: > Dear Android community, > > I'm having a big problem with the application certificates and I > haven't found any official info regarding the possibility of signing > an application with more than one certificate. I have an application > with package name "com.example.myapp" signed with certificate A and > the same app with the same package name but signed with certificate B. > The application signed with A comes preinstalled in device X and the > app signed with B comes preinstalled in device Y. > > Now I need to publish a the app in the Market with the next version. > How can I publish this update so I don't leave any of my users > hanging. If i sign the update with certificate A, only users with the > device X will be able to install the update and the same thing with > certificate B and device Y. > > I saw some posts from other developers in different forums and groups > saying that it's possible to sign an apk with two certificates. When I > try this I get the worst result possible, device X nor device Y can > install the update. > > Another thing, is it possible to do some kind of device > differentiation in the Market so users with device X can download one > app and the users with device Y the other? > > Thank you all in advance. I hope you can help me with this issue. > > Cheers, > Jalal > > -- > 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 > -- Dianne Hackborn Android framework engineer hack...@android.com Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. -- 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
