midletmain.java

SEMC_Java3D_041103_final.pdf主要描述java在3d方面的开发

/*************************************************************************
 MIDletMain is a demo application that shows the use of various
 JSR 184 API caqlls to generate a 3D scene with animation. This file has
 the basic code for implementing the MIDlet and starting a Timer thread
 that's used to animate the 3D object.
 Based on example code from Sony Ericsson.

 IMPORTANT: This code requires use of the M3G (JSR-184) API to function.
  
 File: MIDletMain.java
 Needs: MyCanvas.java
 Resources: cubeface.png, backdrop.png

 Created by: Tom Thompson
 
 COPYRIGHT All rights reserved Sony Ericsson Mobile Communications AB 2004.

 The software is the copyrighted work of Sony Ericsson Mobile Communications AB.
 The use of the software is subject to the terms of the end-user license
 agreement which accompanies or is included with the software. The software is
 provided "as is" and Sony Ericsson specifically disclaim any warranty or
 condition whatsoever regarding merchantability or fitness for a specific
 purpose, title or non-infringement. No warranty of any kind is made in
 relation to the condition, suitability, availability, accuracy, reliability,
 merchantability and/or non-infringement of the software provided herein.
 *************************************************************************/


import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import java.util.*;

// Our custom MIDlet 
public class MIDletMain extends MIDlet{

    static MIDletMain instance;
    MyCanvas displayable = new MyCanvas(); // Custom Canvas does 3D graphics
    Timer iTimer = new Timer();    // Timer to implement animation

    // MIDlet's constructor
    public MIDletMain() {
        this.instance = this;
    } // end constructor

    // Main entry point
    public void startApp() {
        Display.getDisplay(this).setCurrent(displayable);
        iTimer.schedule( new MyTimerTask(), 0, 40 ); // Start timer
    } // end startApp()

    // Manage pausing the MIDlet
    public void pauseApp() {
    } // end pauseApp

    // Manage terminating the MIDlet
    public void destroyApp(boolean unconditional) {
    } // end destroyApp()

    // Quit the MIDlet, doing any clean-up before calling destroyApp()
    public static void quitApp() {
        instance.destroyApp(true);
        instance.notifyDestroyed();
        instance = null;
    } // end quitApp()

    // Our timer task for providing animation
    class MyTimerTask extends TimerTask {
        public void run() {
            if( displayable != null ) { // If Canvas is present...
                displayable.repaint(); // ... call its repaint()
            } // end if
        } // end run
    } // end TimerTask
     
} // end MIDletMain