Thursday, January 31, 2013

[android-developers] Re: Thread Loop

And since Blake was too shy to mention his own web site and book, let me do it for him;) The coverage of these issues in "Programming Android" is better than in many Android books, and in his webcast "Concurrent Programming in Android" is even better.

IntentService is so handy, I am amazed it got so little coverage in Android Developer documentation all this time. Even with the vast improvements in the 4.0 docs, IntentService is still under-documented. There is a lot you can do with either this or Looper/Handler without having to resort to AsyncTask, which really has been over-billed in recent years as if far more flexible and useful than it really is.

On Wednesday, January 30, 2013 4:54:16 AM UTC-8, G. Blake Meike wrote:
First of all, congrats for not doing this with an AsyncTask.

Second, as of Honeycomb, you may not touch the network from the UI thread (as you've probably surmised by now).  The fact that you are getting that error message suggest to me that you are using a Handler attached to the UI thread You can't do that.

TreKing's suggestion of an alarm, scheduled with the alarm manager, coupled with an intent service, is probably a good way to go.  The Alarm manager fires a PendingIntent at the IntentService.  When the IntentService gets the intent, it runs the server check.


On Tuesday, January 29, 2013 11:47:39 AM UTC-5, Diego Nunes wrote:
Good afternoon.

I need from time to time do a check on a server, because I'm not using AsyncTask do not need no update from my view.

Then I used a Handler that runs a thread from time to time, and this thread makes access to the server. In Honeycomb versions running down blz, already in top get a exception: android.os.NetworkOnMainThreadException.

Someone uses a different strategy to do this kind of task?

Thank you.

Diêgo Nunes Assunção
"Give Peace a Chance"

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