Generally the touch screen firmware processes the raw data into low-level touch events. It never leaves the screen hardware at all.
On Wed, May 9, 2012 at 10:51 AM, Lewis <[email protected]> wrote: > Hello all - > > I've been tasked with determining if the capacitance touchscreen on a > android device is sensitive enough to provide even a partial > fingerprint. During my research I'm coming to the conclusion that no, > most devices does not have enough electrodes to determine the > variation between the ridge/valleys of a print but I'm also suspecting > the hardware doesn't do much more than provide X,Y coordinates to the > software. > > My question is, when you develop for android is there a way to get > access to the touchscreen raw data? > > An alternate, semi-related question, by chance does anyone here know > how the hardware on a capacitance fingerprint scanner works > differently than a capacitance touchscreen? It seems they utilize > similar technology but perhaps the density of electrodes on a > touchscreen is much less? I'm at a loss here. > > Thanks for your time. If I have missed any threads about this, please > either give me some search terms so I can locate the thread or a link > to the thread will be appreciated. > > -- > 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 > -- Dianne Hackborn Android framework engineer [email protected] 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 [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
