How to make a button/drawable remain clicked

by k_pip_k » Fri, 18 Sep 2009 03:41:14 GMT


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 Hello all,

I have a GridView with a BaseAdapter that cycles through the elements
making views for each element or cell in the grid.

What I would like to do is create a clickable image/button, and when
the user clicks or touches it, for it to remain clicked and
highlighted so that they make click on several if they so choose.

I have tried, ImageButtons, Buttons, ImageViews, LayerDrawables(with a
swapable background color drawable), ToggleButtons, CheckBoxes,
derived my own CompoundButton, but nothing seems to work.

I was a teeny bit successful with a ImageButton where I could create
it selected, but if the user clicked on it, I couldn't get that visual
state back.

Any help is appreciated.  I can post code if you like.

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How to make a button/drawable remain clicked

by BJP » Fri, 18 Sep 2009 15:40:19 GMT


 For whatever reason, this is a pet peeve of some of the core Android
development team.  There have been a number of posts where developers
have requested the ability to programmatically highlight objects as if
the track ball was used to select them but the answer is that this is
impossible in "touch mode" which is entered whenever the user touches
the screen.  The core Android developers claim that highlighting
objects programmatically will present a confusing user experience, so
they're not going to let developers do it.  As far as I know, your
only alternative is to make your own View that behaves like you want
it to, but that will be frowned upon:


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How to make a button/drawable remain clicked

by k_pip_k » Sat, 19 Sep 2009 04:43:30 GMT


 Thanks, Very strange they don't provide this capability.

I'm writing a game where this is crucial.

Anyways, I did have to implement my own view and managed to get the
LayerDrawable working to accomplish this.  Works pretty good.



> upon:



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