KeyListener is (generally) only for physical keyboards. It may not even be used for those -- an IME has first crack at hard key events and may do its own massaging of them and do calls on its InputConnection. (Consider for example a Chinese IME that converts input on a hard keyboard to Chinese text.)
As far as where data goes... it depends on what you are talking about. The general flow for touch input is: - MotionEvent delivered to IME window. - IME makes calls on the target InputConnection based on the touch data. - The InputConnection calls appear in the target app, which for a TextView performs the appropriate editing of its text. On Sun, Sep 5, 2010 at 9:42 PM, Tez <[email protected]> wrote: > and another thing....in all these "key" interactions, (physical or > IME), am I correct in assuming that all data must pass thru the > Framework classes like WindowManagerService, KeyInputQueue etc? > > Cheers, > Earlence > > On Sep 6, 12:02 am, Dianne Hackborn <[email protected]> wrote: > > You can't get that from the IME. What you get is edit operations via > calls > > on InputConnection. > > > > You will need to implement your own keyboard in your app if you want to > > monitor individual interactions with it. > > > > > > > > On Sun, Sep 5, 2010 at 4:18 AM, Tez <[email protected]> wrote: > > > Biometric Measure with neural nets: Key stroke patterns. > > > For that I need data about how something was typed in: > > > > > Eg: EARLENCE > > > > > 1. time for which each key was pressed. > > > 2. interval between consecutive key presses. > > > > > Cheers, > > > Earlence > > > > > On Sep 4, 10:44 pm, Dianne Hackborn <[email protected]> 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 <[email protected]> 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 <[email protected]> wrote: > > > > > > On Fri, Sep 3, 2010 at 10:48 PM, Tez <[email protected]> > > > 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 > > > > > > [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]<android-developers%[email protected]> > <android-developers%[email protected]<android-developers%[email protected]> > > > > > <android-developers%[email protected]<android-developers%[email protected]> > <android-developers%[email protected]<android-developers%[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]<android-developers%[email protected]> > <android-developers%[email protected]<android-developers%[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]<android-developers%[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
