[转]J2ME MIDP Device Fragmentation Tutorial with Marv The Miner

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关键词： Tutorial , MIDP , J2ME , ATI , NT , CE , IT

j2me MIDP Device Fragmentation Tutorial with Marv The Miner

http://www.netbeans.org/kb/articles/tutorial-j2mefragmentation-40.html

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This tutorial shows how to configure the IDE to work with existing Java^TM 2, Micro Edition Platform (J2ME^TM Platform) MIDP projects and, specifically, how to use the NetBeans^TM IDE's built-in solution to the device fragmentation problem. Following this tutorial from start to finish will illustrate the following:

How to port an existing fragmented MIDP project to NetBeans
How to use the IDE's built-in device fragmentation solution

The example program this tutorial uses is the popular j2me game "Marv The Miner," which was released under GPL and written to run on several different mobile platforms.

This tutorial should take approximately two hours to complete and covers the following topics:

Import sources from an existing MIDP project.
Create and customize project configurations for each distribution Jar.
Mark pieces of source code as being specific to each configuration.
Build several distribution Jars for the project.
Use external emulators from within the IDE.

To follow this tutorial you need the MarvTheMiner_120_all.zip file, which contains the original source files of the program. Click here and download "Marv the Miner v1.2.0 (including level editor)" to obtain the source files.

Setting Up Your Environment
- Obtaining and Installing the Required Software
- Starting the IDE
Obtaining the Required Source Files
Developing the Marv The Miner Application in NetBeans
- Import Existing Sources
- Creating Project Configurations
- Customize Project Settings for Configurations
- Create Custom Code Blocks for each Configuration
Building and Executing the Marv the Miner Application
Exploring Configurations Further
Using Non-UEI compliant Emulator Platforms

Setting Up Your Environment

This section describes how to set up your system before starting the tutorial.

Obtaining and Installing the Required Software

The following software is required for the example:

The NetBeans^TM Integrated Development Environment (IDE) with the NetBeans Mobility Pack 4.0 Beta 2 or FCS.
You can obtain this software from the NetBeans download site: http://www.netbeans.org/downloads/index.html
Java^TM 2 Software Development Kit, Standard Edition (J2SE^TM SDK), v. 1.4.2 or higher
You can obtain the J2SE SDK from http://java.sun.com/j2se/downloads.html
j2me^TM Wireless Toolkit 2.0 or higher
The j2me Wireless Toolkit is installed with the NetBeans Mobility Pack. You also can obtain the Wireless Toolkit from http://java.sun.com/products/j2mewtooklit/index.html.
Nokia Series 60 SDKs for Symbian OS
The SDK can be obtained at http://www.forum.nokia.com/main/0,6566,034-483,00.html
SDK for one or more of the following: Nokia Series 40, Nokia Series 80, Nokia Series 90, Motorola SDK4.1 for j2me GA, Vodafone
- You can obtain Motorola SDK4.1 for j2me GA from http://www.motocoder.com/motorola/pcsHome.jsp?node_name=SDK (registration required)
- You can obtain Nokia SDKs from http://www.forum.nokia.com/main/1,6566,030,00.html. Select Java in the "View tools by technology area" drop down box.
- The Vodafone SDK is available only to Global Partners, and can not be obtained via simple online registration.

Use the instructions provided at the download sites to install the software.

Starting the IDE

To start the NetBeans IDE:

On Microsoft Windows
Choose Start > Programs > NetBeans version > NetBeans IDE.
On UNIX, or Linux environments
In a terminal window, type sh IDE-install-path/bin/runide.sh

The IDE-install-path variable stands for the path to the IDE's home directory.

Obtaining the Required Source Files

The MarvTheMiner_120_all.zip file contains the source files of the original Marv The Miner application. The zip includes a MarvTheMiner directory, which contains the src and res subdirectories that you will use in this tutorial.

To unzip the MarvTheMiner_120_all.zip file:

In your file system, create a temporary location for the contents of MarvTheMiner_120_all.zip.
For example, this tutorial refers to this directory as the C:\temp directory.

Use an application that unzips files to unzip the MarvTheMiner_120_all.zip file to the temp directory.
The temp directory now has a MarvTheMiner directory, which contains the following files and subdirectories:

File or Subdirectory	Description
`src`	The source files which make up the Marv The Miner program.
`res`	Contains the resource files used by the program. This includes graphics as well as .map files which are used to define the game level's layouts.
`MarvEditor`	A level editor (outside the scope of this tutorial).
`Nokia.full`	A Nokia build of the game.
`MIDP.full`	A generic MIDP build of the game.

Move the res directory to C:/temp/MarvTheMiner_120_all/src/. This is a small work-around to make sure the resource files maintain the correct relative path once we create a new NetBeans project.

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