If you want to develope mobile maps application for android mobile phone, you can buy android gps and routing source code templates from www.andgps.com
The source code templates will show you how to customize android application menu depend on which view is showing on the screen; how to use thread to listen to GPS update in the background and refresh the main screen in the foreground; how to use android SQLite database to store application settings; how to wrap android SQLite database to use like J2ME record store; how to use double buffer (off-screen buffer) to speed up graphic drawing performance; how to inflate menus and user interface (UI) views in program code at run-time without the need of pre-define menus and views in resource menu and layout files; how to use ant script to build, sign and release android package; how to use Proguard to obfuscate android source code to protect it from decompiling DEX into Java sourcecode; how to remove your GPS application completely from memory when user wants to exit so that your GPS application will not run in the background to save the phone battery…
The source code templates also include Proguard and an Ant script to build and release package ready for Marketplace deployment in one step. The Ant build.xml script is configured to use build properties file, and is integrated with Proguard to obfuscate the android release package.
Visit www.andgps.com for more details.
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