That's right, the concept for this is based off the fact that you shouldn't be able to create a system operation as an app.
The device admin API doesn't allow you to implement a lock screen, but does allow you to change the password http://developer.android.com/reference/android/app/admin/DevicePolicyManager.html#resetPassword(java.lang.String,%20int) It's sort of strange the cited app doesn't require any permissions, meaning it basically exploits some hole.. Kris On Sun, Feb 24, 2013 at 10:00 PM, galapogos <[email protected]> wrote: > Thanks for the reply. > > So there's no existing API that allows an app to pass a security > credential(PIN/passphrase/etc) to the security framework for user > authentication/screen unlock purposes? > > Is there a reason why there isn't a way for an app to pass a security > credential to the framework? The only I can think of are for security > reasons (risks of malware taking over the authentication process and > performing a DoS attack by locking the phone with incorrect credentials for > example), but I've come across apps that apparently are able to change the > actual user credential (e.g. Moving Target - > https://play.google.com/store/apps/details?id=org.inh.android.movingtarget), > which seems to me to be a greater security risk. > > > On Saturday, February 23, 2013 12:01:30 AM UTC+8, Kristopher Micinski wrote: >> >> It is not possible to do this at the app level, unfortunately. >> >> Kris >> >> On Fri, Feb 22, 2013 at 12:59 AM, galapogos <[email protected]> wrote: >> > Hi, >> > >> > Is it possible to create a lockscreen replacement at the application >> > level >> > that replaces the device's security lock, whether it be PIN, passphrase, >> > pattern or face unlock, or potentially a new method? I know it's >> > possible in >> > the framework level, and have done it before, but I'm just wondering if >> > it's >> > possible to do it at the application level. >> > >> > So far the few lockscreen replacements that I've tried only implement a >> > slide gesture unlock lockscreen UI, and falls back to the device's >> > security >> > lock after that. >> > >> > Any help would be appreciated, thanks! >> > >> > -- >> > -- >> > 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 unsubscribe from this group and stop receiving emails from it, send >> > an >> > email to [email protected]. >> > For more options, visit https://groups.google.com/groups/opt_out. >> > >> > > > -- > -- > 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 unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > > -- -- 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 unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
