Where do I get the selection color?

by Mariano Kamp » Wed, 11 Mar 2009 20:39:45 GMT

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  I'd like to use the standard selection color when clicking on a list item.
Where do I get it from?



Where do I get the selection color?

by Romain Guy » Thu, 12 Mar 2009 00:57:09 GMT

 It's not a single color, but a gradient defined in a 9patch.

Romain Guy
Android framework engineer

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


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Where do I get the selection color?

by Mariano Kamp » Thu, 12 Mar 2009 03:47:21 GMT

 Ah, thanks -
where can I find the gradient defined in a 9patch?


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1. InstrumentationTestCase: Scrolling a listview to be able to click info icon associated with each item on the list

I am writing my android JUnit tests in InstrumentationTestCase class.
I would appreciate any help with the following scenarios as I tried
all the ways that I could think of, but with no luck.

I need to:

  1) Vefiry that the list actually scrolled (I mean verify that the
screen content changed when scrolled)
  2) Scroll a list view to be able to click on info button associated
with each item on the list when the list spans across screens.

Say there are 25 entries in the list and each screen can fit 10
entries. I need to iterate through the list and click the info button
associated with each item on the list and do some verifications. It
works fine for all the items on the first screen, but when the button
to be clicked is for the 11th and subsequent items in the list, it
fails, so I need to scroll to the next screen.

I was hoping that calling TouchUtils.dragQuarterScreenUp(this,
activity) 4 times would scroll one full screen, but it is not
scrolling exactly one screen.

I tried TouchUtils.dragViewToY by giving the offset by calculating:

int iScrollToY = childView .getHeight() * (listView.getChildCount() +
1); //assuming this is the Y coordinate of the 1st item on the next

In the code above, listView is the ListView that displays all the
items and childView's value is listView.getChildAt(iLoopCounter):

int iScrollToY = childView.getHeight() * (listView.getChildCount() +
1); //assuming this is the Y coordinate of the 1st item on the next

I tried several other values to pass to the y coordinate, they all
scroll but not by the value that I need. I see that TouchUtils has a
lot of drag methods, I am sure one of them can scroll by the number of
items in the list, but I am unable to figure out what to pass to the
pixel values for these drag/scroll methods.

when I try to use listView.scrollTo(x, y) with some values that I
thought would work, give the following error as the list view is not
created by my code but I am just testing the existing code:

android.view.ViewRoot$CalledFromWrongThreadException: Only the
original thread that created a view hierarchy can touch its views.

Can somebody please let me know the Y coordinate value that I need to
pass to one of these drag/scroll methods in TouchUtils to be able to
iterate through each item in the list( by either scrolling one item at
a time or one whole screen after visiting all the items on one screen)
or any other means to just scroll the ListView by passing as an
argument the number of list items to scroll.

Even if I can not see the list, that's ok as long as I can click the
info button corresponding to each item on the list by some how
scrolling the listview.

Thank you very much for reading this long post and thanks in advance
for your help.


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