aatk.java

基于j2me的高等代数计算工具

package edu.neu.aatk;

import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.Display;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;

import edu.neu.aatk.canvas.MainMenuCanvas;
import edu.neu.aatk.canvas.WelcomeCanvas;
import edu.neu.aatk.command.MainMenuCommand;

public class AATK extends MIDlet {
	public Display display = null;
	private boolean firstTime = false;
	
	public AATK() {
		display = Display.getDisplay(this);
		firstTime = true;
	}

	public void destroyApp(boolean arg0) throws MIDletStateChangeException {


	}

	protected void pauseApp() {


	}

	protected void startApp() throws MIDletStateChangeException {
		if(firstTime) {
			display.setCurrent(new WelcomeCanvas());
			try {
				Thread.sleep(5000);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
			MainMenuCanvas mmc = new MainMenuCanvas("Advanced Algebra Toolkit V1.1", this);
			mmc.setKeyCommand(new MainMenuCommand(mmc));

			display.setCurrent(mmc);
		}

	}

}