We really could use some help with this one. We
have found a case where neither of the approaches,
absolute_x nor View.getLocationOnScreen(), are correct.
The window where this happens is an EditTextPreference.
It should be for a preference near the bottom of 5 or 6
item preference list. To see an example:
1. bring up the AlarmClock app
2. click Menu
3. click Add Alarm
4. click Label
5. observe (either with HierarchyViewer or your eyes) the position of
this window
6. click the "Alarm" EditText box
7. observe (eyes, HV) the new position of this window
Before the window moves I see these values from HierrarchyViewer:
absolute_x: 20
absolute_y: 82
screenX: 27 (see my previous email for how these
screenY: 229 values are obtained)
After the soft keyboard is displayed and the window is pushed up,
and I completely refresh the information in HierarchyViewer, all
four values are the same. I expected absolute_x and absolute_y to
stay constant, but I thought View.getLocationOnScreen() would return,
well, the location of the view on the screen. Sadly, no.
Is there an alternative to getting the screen position of the
EditText box under these circumstances? Is it a bug that the data
backing up getLocationOnScreen() has not been refreshed after the
soft keyboard pushes the preference window up?
-Sam
On Jun 20, 10:19 am, sbq <sbq...@gmail.com> wrote:
> absolute_x and absolute_y are thepositionof a View relative to its
> containing Window. If the Window shifts (e.g., to accomodate the
> soft keyboard IME), absolute_x and absolute_y of a View do not change,
> the
> the view is still in the samepositionwith respect to its containing.
>
> However, the View has moved to a new location on the screen and
> its screen location can be obtained as I described.
>
> On Jun 20, 9:31 am, Romain Guy <romain...@google.com> wrote:
>
> > But HierarchyViewer *already* dumps these values, they're called
> > "absolute_x" and "absolute_y".
>
> > On Sat, Jun 20, 2009 at 8:09 AM, Samuel Quiring<sbq...@gmail.com> wrote:
> > > Hi. Sorry for not responding earlier -- I don't read this newsgroup
> > > daily.
>
> > > Our app sends DUMP commands to the ViewServer class on the phone over a
> > > socket and gets back a list of attributes for all views in the view
> > > hierarchy of a phone app. The code that actually creates these attributes
> > > is the class ViewDebug. Both these classes are in the package
> > > android.view
> > > in the system image. Our interface to ViewDebug is modelled after the
> > > HierarchyViewer app that is part of the SDK.
>
> > > There is a method, View.getLocationOnScreen(), that returns the x and y
> > > coordinate of the view on the screen, not relative to the Window. So I
> > > modified the routine ViewDebug.dumpViewWithProperties() to add these two
> > > values if they are available as follows:
>
> > > private static boolean dumpViewWithProperties(Context context, View view,
> > > BufferedWriter out, int level) {
>
> > > try {
> > > for (int i = 0; i < level; i++) {
> > > out.write(' ');
> > > }
> > > out.write(view.getClass().getName());
> > > out.write('@');
> > > out.write(Integer.toHexString(view.hashCode()));
> > > out.write(' ');
> > > dumpViewProperties(context, view, out);
> > > if(((View) view).mAttachInfo != null) {
> > > int screenLocation[] = new int[2];
> > > ((View)view).getLocationOnScreen(screenLocation);
> > > writeEntry(out, "", "screenX", "",
> > > Integer.toString(screenLocation[0]));
> > > writeEntry(out, "", "screenY", "",
> > > Integer.toString(screenLocation[1]));
> > > }
>
> > > out.newLine();
> > > } catch (IOException e) {
>
> > > Our app also computes the X and Ypositionof each view relative to the
> > > Window. We compare the actual screenpositionwith the computed X and Y to
> > > know when the view is not in its normalpositionand to know what its actual
> > >positionis. You can catch the view in a transition period, for example
> > > suppose the phone app has an EditText view near the bottom of the phone
> > > window. If a click happens in that EditText, the entire window containing
> > > the view will be pushed up to make room for the keyboard and also keep the
> > > EditText control exposed (since the purpose of the soft keyboard is to
> > > enter
> > > text into the EditText control). if you ask to dump the view just after
> > > that
> > > click, you can catch the view in transition. Its screenYpositionwill be
> > > part way between where it was (at the bottom) and where it will be (above
> > > the soft keyboard). Of course the reverse is true if you click the BACK
> > > key
> > > to remove the soft keyboard and ask for the dump right after that click.
>
> > > Hope that helps. Sorry for not responding earlier.
>
> > > -Sam
>
> > > On Thu, Jun 18, 2009 at 10:24 PM, tek <tek.bas...@gmail.com> wrote:
>
> > >> Please post your solution, I'm interested in this as well.
>
> > >> On Jun 13, 2:17 pm, sbq <sbq...@gmail.com> wrote:
> > >> > Thanks anyway, I found what I'm looking for.
>
> > >> > -Sam
>
> > >> > On Jun 13, 8:34 am, sbq <sbq...@gmail.com> wrote:
>
> > >> > > Is there a way to get the window's information from the View?
> > >> > > I would like to figure out that the window is shifted and by
> > >> > > how much.
>
> > >> > > On Jun 12, 10:10 pm, Romain Guy <romain...@google.com> wrote:
>
> > >> > > > That's because the window is shifted, not the views within the
> > >> > > > window.
> > >> > > > What HierarchyViewer shows is correct.
>
> > >> > > > On Fri, Jun 12, 2009 at 5:56 PM, sbq<sbq...@gmail.com> wrote:
>
> > >> > > > > Greetings,
>
> > >> > > > > I'm interfacing to ViewDebug to get the currentpositionof views
> > >> > > > > in
> > >> > > > > the phone window. I have an Android application with an EditText
> > >> > > > > box
> > >> > > > > near the bottom of the phone's window. When I click on that
> > >> > > > > EditBox,
> > >> > > > > the soft keyboard is displayed at the bottom of the window and
> > >> > > > > the
> > >> > > > > EditText box (and everything above it) is pushed up to make room.
> > >> > > > > Soon after, while the keyboard is still visible, I have a program
> > >> > > > > that
> > >> > > > > connects to the phone and makes a DUMP request to ViewDebug. I
> > >> > > > > don't
> > >> > > > > see this shift reflected in either the mTop or mScrollY of any
> > >> > > > > Views
> > >> > > > > brought back.
>
> > >> > > > > Is there a way learn about the newpositionof these Views after
> > >> > > > > the
> > >> > > > > soft keyboard is displayed? Alternatively, is there a way to
> > >> > > > > learn
> > >> > > > > that the soft keyboard is currently being displayed and how far
> > >> > > > > the
> > >> > > > > phone window was scrolled up -- the amount of scrolling depends
> > >> > > > > on
> > >> > > > > which EditText control was clicked.
>
> > >> > > > > Since HierarchyViewer uses this same DUMP data, it also does not
> > >> > > > > show
> > >> > > > > that the Views have been shifted up and some views are not on the
> > >> > > > > screen -- the absolute_y positions are what they would be if the
> > >> > > > > keyboard was not there.
>
> > >> > > > > Thanks for any help.
>
> > >> > > > > -Sam
>
> > >> > > > --
> > >> > > > Romain Guy
> > >> > > > Android framework engineer
> > >> > > > romain...@android.com
>
> > >> > > > Note: please don't send private questions to me, as I don't have
> > >> > > > time
> > >> > > > to provide private support. All such questions should be posted on
> > >> > > > public forums, where I and others can see and answer them
>
> > --
> > Romain Guy
> > Android framework engineer
> > romain...@android.com
>
> > Note: please don't send private questions to me, as I don't have time
> > to provide private support. 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-framework" group.
To post to this group, send email to android-framework@googlegroups.com
To unsubscribe from this group, send email to
android-framework+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/android-framework?hl=en
-~----------~----~----~----~------~----~------~--~---
