midletmain.java

来自「《精通JAVA手机游戏与应用程序设计》随书光盘」· Java 代码 · 共 60 行

package manually;

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

public class MIDletMain extends MIDlet {
    static MIDletMain instance;
    MyCanvas displayable = new MyCanvas();
    Timer iTimer = new Timer();

    /**
     * Construct the midlet.
     */
    public MIDletMain() {
        MIDletMain.instance = this;
    }

    /**
     * Main method.
     */
    public void startApp() {
        Display.getDisplay(this).setCurrent(displayable);
        iTimer.schedule( new MyTimerTask(), 0, 40 );
    }

    /**
     * Handle pausing the MIDlet.
     */
    public void pauseApp() {
    }

    /**
     * Handle destroying the MIDlet.
     */
    public void destroyApp(boolean unconditional) {
    }
    
    /**
     * Quit the MIDlet.
     */
    public static void quitApp() {
        instance.destroyApp(true);
        instance.notifyDestroyed();
        instance = null;
    }

    /**
     * Timer task for providing animation.
     */
    class MyTimerTask extends TimerTask {
    	public void run() {
            if( displayable != null ) {
                displayable.repaint();
            }
        }
    }
}