March 2013
Beginner to intermediate
580 pages
16h 11m
English
Content preview from Android Programming: The Big Nerd Ranch GuideBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Downloading Lots of Small Things
Currently, PhotoGallery’s networking works like this: PhotoGalleryFragment executes an AsyncTask that retrieves the XML from Flickr on a background thread and parses the XML into an array of GalleryItems. Each GalleryItem now has a URL where a thumbnail-size photo lives.
The next step is to go and get those thumbnails. You might think that this additional networking code could simply be added to FetchItemsTask’s doInBackground() method. Your GalleryItem array has 100 URLs to download from. You would download the images one after the other until you had all 100. When onPostExecute(…) executed, they would be displayed en masse in the GridView.
However, downloading the thumbnails all at once causes two problems. ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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