I want to implement a biometric measure based on keystroke analysis. (This is a known research topic). I need to extract timing vectors that correspond to how a user types. (This is done on other devices like Win Mob but not Android)
Suppose a user types EARLENCE (length of string = 8) It should result in 8 values that represent the time for which each key was held down, or each touch event. and 7 values that represent the time elapse between consecutive keys. Cheers, Earlence On Sep 4, 10:44 pm, Dianne Hackborn <hack...@android.com> wrote: > You can override EditText to return your own InputConnection. > > But... if you want KeyEvents, you won't get KeyEvents. Period. There are > no KeyEvent objects involved in this ANYWHERE. At all. The user is > touching on the screen (that is a touch event). The IME turns that into an > edit operation on the TextView (that is a call to InputConnection). No > KeyEvent. > > What you are claiming to want to do simply doesn't make sense. Let's back > up here and see what you are actually trying to accomplish? Not timing > between two key events. What is the goal you are trying to achieve? > > > > On Sat, Sep 4, 2010 at 6:55 AM, Tez <earlencefe...@gmail.com> wrote: > > How do I intercept the InputConnection Calls? Would I have to modify > > the IME or use a custom one? > > Having text change listeners would not be of use as I need key timing > > information. This I can only get thru KeyEvents. > > > Cheers, > > Earlence > > > On Sep 4, 12:39 pm, Dianne Hackborn <hack...@android.com> wrote: > > > On Fri, Sep 3, 2010 at 10:48 PM, Tez <earlencefe...@gmail.com> wrote: > > > > 1. I have registered a KeyListener on an EditText. When I use the soft > > > > keyboard to input text, my listener is not called. How Do I intercept > > > > these events? > > > > InputConnection is how edit operations are delivered through an IME. > > These > > > will appear as direct edits of the text in the EditText, so to watch that > > > you either need to intercept the InputConnection calls or have listeners > > for > > > text changes. > > > > > 2. How do I measure time interval between KeyEvents. The methods are > > > > confusing and documentation is not good. Plz put pseudo-code here. > > > > Er... there is nothing really to document here. > > SystemClock.uptimeMillis() > > > returns the current time in what are probably appropriate units for you. > > > Call it at the points you are interested in. Compare the values. > > > > (Didn't we just have a thread on this?) > > > > -- > > > 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<android-developers%2bunsubscr...@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
