> Practical application: Suppose I want a dialog box (or any other code)
> to run when any text box (EditText) gets the focus.
I'm not sure that's possible.
> This is an
> external EditText, so say, the browser. Putting aside Activities, I
> build an app that consists of only an IntentReceiver:
>
> IntentReceiver(receives a custom defined Intent)
> {...}
>
> How and where can I define the actual Intent? From my understanding,
> an IntentReceiver will start the app when it gets the Intent. But...
> where is the test done for whether a text box has the focus or not? If
> the application is not running, there is no opportunity for it to get
> DEFINED. is there?
Custom Intents have to be manually sent. If you invent an Intent out of
whole cloth, nothing in Android will know to send it except perhaps your
own code.
I cover custom Intents in a two-part blog post series on AndroidGuys, with
the second post being probably more in line with what you need:
http://androidguys.com/2008/07/03/gettin%E2%80%99-on-the-message-bus-part-two/
So, you can use custom Intents to, say, have Application X alert
Application Y about something, or have Service M notify Activity N about
something. But I'm not aware of any spot in the code to say "whenever an
EditText anywhere gets the focus, broadcast this-and-so Intent".
--
Mark Murphy (a Commons Guy)
http://commonsware.com
_The Busy Coder's Guide to Android Development_ -- Available Now!
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