By Shane Conder, Lauren Darcey
Android instant program improvement has earned a name because the most respected real-world advisor to construction powerful, commercial-grade Android apps. Now, authors Lauren Darcey and Shane Conder have systematically revised and up-to-date this consultant for the most recent Android SDK and instruments updates. to house their broad new assurance, they’ve break up the booklet into leaner, purifier volumes. This quantity II makes a speciality of complex ideas for the whole app improvement cycle, together with layout, coding, trying out, debugging, and distribution. Darcey and Conder disguise scorching issues starting from pill improvement to retaining opposed to piracy and display complex options for every thing from information integration and UI improvement to in-app billing.
Every bankruptcy has been completely up to date to mirror the most recent SDKs, instruments, and units. The pattern code has been thoroughly overhauled and is offered for obtain on a better half site. Drawing on a long time of in-the-trenches adventure as expert cellular builders, the authors additionally offer much more information and top practices for hugely effective improvement. This new version covers
* complicated app layout with async processing, prone, SQLite databases, content material prone, intents, and notifications
* subtle UI improvement, together with enter accumulating through gestures and voice recognition
* constructing obtainable and internationalized cellular apps
* Maximizing built-in seek, cloud-based providers, and different unique Android features
* Leveraging Android 4.0 APIs for networking, net, place companies, the digital camera, telephony, and sensors
* construction richer apps with 2D/3D photographs (OpenGL ES and RenderScript), animation, and the Android NDK
* monitoring app utilization styles with Google Analytics
* Streamlining trying out with the Android Debug Bridge
This ebook is an vital source for each intermediate- to advanced-level Java developer now engaging in Android improvement and for each professional cellular developer who desires to take complete benefit of the most recent Android platform and hardware.
Also search for: Android instant software improvement, quantity I: Android necessities (ISBN: 9780321813831)
Read Online or Download Android Wireless Application Development, Volume 2: Advanced Topics (3rd Edition) (Developer's Library) PDF
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The application routinely dispatches “work” but doesn’t need an immediate response. For example, an email application might use an IntentService work queue to queue up each message to be packaged up and sent out to a mail server. All networking code would then be separated from the main user interface of the application. Now let’s look at an example of how you might use IntentService. Tip The code examples in this section are taken from the SimpleIntentService sample application. The source code for this application is provided for download on the book’s websites.
The AsyncTask class is an abstract helper class for managing background operations that eventually are posted back to the UI thread. It creates a simpler interface for asynchronous operations than manually creating a Thread class. Internally, AsyncTask improves with the Android SDK, and in later versions, it can manage multiple tasks simultaneously using multiple physical cores and an internal thread pool. The important callbacks are: The onPreExecute() method runs on the UI thread before background processing begins.
Developers can no longer ignore Android as a target platform if they want to reach the smartphone (or smart-device) users of today and tomorrow. This book is meant to be an overall reference to help developers support all popular devices on the market today. 0. Of course, some devices receive upgrades, and users purchase new devices as they become available, but for now, developers need to straddle this gap and support numerous versions of Android to reach the majority of users in the field. So what does this mean for this book?