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Learning Android Application Development

You're reading from   Learning Android Application Development Start building for the world's most popular mobile platform

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Product type Paperback
Published in Aug 2016
Publisher Packt
ISBN-13 9781785286117
Length 320 pages
Edition 1st Edition
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Authors (2):
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Raimon Ràfols Montane Raimon Ràfols Montane
Author Profile Icon Raimon Ràfols Montane
Raimon Ràfols Montane
Laurence Dawson Laurence Dawson
Author Profile Icon Laurence Dawson
Laurence Dawson
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Toc

Background processing

Now that we have addressed how to request permission, we will slightly shift our focus on how to perform background operations. All network communications have to be done in the background. If we do it on the UI thread or main thread, we will block the UI layer and, most probably, throw an Application Not Responding (ANR) dialog. For more information, refer tohttp://developer.android.com/training/articles/perf-anr.html.

Anyway, any application targeted after Honeycomb will throw an exception NetworkOnMainThreadException if it detects any networking operations on the main thread. For more information, refer to http://developer.android.com/reference/android/os/NetworkOnMainThreadException.html.

We have several tools to address these points, but Android provides us with many useful mechanisms already.

Java threads

We can always use Java threads to do background work. It is good practice to use an Android provided mechanism, as using, or abusing, Java threads...

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