AppWidget update best practices

by Nivek » Sun, 08 Nov 2009 16:27:09 GMT


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 Hi !

In the process of creating an AppWidget which displays data from a
remote host, I am looking for documentation about how to manage
updates.

Are there articles somewhere about how and when querrying remote data
is the most appropriate ?

I am wondering if we have to explicitely code the remote querries in a
separate thread, or even do it in a separate service, to avoid freezes
of the home screen (this happens a lot on my htc magic).

Any tip and help is welcome !

Thanks !

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AppWidget update best practices

by Mark Murphy » Sun, 08 Nov 2009 21:26:26 GMT


 


 http://android-developers.blogspot.com/2009/04/introducing-home-screen-widgets-and.html 

The above blog post shows using app widgets where the real work is being
done by a separate service.

To have the work be done on a background thread in that separate
service, have your service extend IntentService and override
onHandleIntent() rather than onStart().

You can see an example of this technique here:

 http://github.com/commonsguy/cw-advandroid/tree/master/AppWidget/TwitterWidget/ 

99% of the time, you want to do any sort of "remote queries" on a
background thread.

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

Android App Developer Books:  http://commonsware.com/books 

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AppWidget update best practices

by Nivek » Sun, 08 Nov 2009 22:41:05 GMT


 Thanks a lot, this is exactly what I was looking for.

I try this right now !

Kevin






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