MergeAdapter & focus

[MarcoAndroid]

Hi Mark,

I've been integrating the MergeAdapter in my app, with on top an
inputbox + searchbutton & search results below.
It works almost perfect, except that I'm losing focus on my inputbox
(edittext). Here's what I did:

In the MergeAdapterDemo I did this after creating the MergeAdapter:

// Add search box (relativelayout with textviews, edittexts and linear
layouts)
LayoutInflater vi = (LayoutInflater) getSystemService
(Context.LAYOUT_INFLATER_SERVICE);
View v = vi.inflate(R.layout.search_box, null);
adapter.addView(v);

That shows the searchbox above the firstlist + button + secondlist
from the demo, as expected.

What is not ok then:
When I click the edittext box to enter some searchcriteria, it gets
focus for a splitsecond, then keyboard pops up as excepted. But then
the edittext I just clicked on looses its focus! I have to click it
again to be able to enter its data. This does not happen using the
searchbox in a regular way (i.e w/o the MergeAdapter).

Any idea on how to fix this?

PS: I also see that the default focus in the emulator is on the first
entry of the first list, not on the first inputbox. Maybe related?

Regards,
Marco

[Mark Murphy]

MarcoAndroid wrote:
> I've been integrating the MergeAdapter in my app, with on top an
> inputbox + searchbutton & search results below.
> It works almost perfect, except that I'm losing focus on my inputbox
> (edittext).

I haven't tested MergeAdapter with anything focusable, as I tend to
avoid focusable items in lists where possible.

> When I click the edittext box to enter some searchcriteria, it gets
> focus for a splitsecond, then keyboard pops up as excepted. But then
> the edittext I just clicked on looses its focus! I have to click it
> again to be able to enter its data. This does not happen using the
> searchbox in a regular way (i.e w/o the MergeAdapter).
>
> Any idea on how to fix this?

Off the top of my head, I don't have a simple solution. Adapters don't
know anything about the focus, so I do not know how the Adapter could be
affecting the focus.

For this case, will ListView#addHeaderView() suffice? Or does it give
the same results? If the latter, then I think this is more of a issue of
having focusable items in a ListView, more so than MergeAdapter
specifically.

> PS: I also see that the default focus in the emulator is on the first
> entry of the first list, not on the first inputbox. Maybe related?

Possibly. There are some fairly conventional tricks for dealing with
focusable items in a ListView that have been posted (Romain Guy has
posted them a couple of times). Off the top of my head, I forget what
they were, but you could try those.

--
Mark Murphy (a Commons Guy)
http://commonsware.com | http://twitter.com/commonsguy

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