textboxmidlet.java

j2me开发精解的源代码

package com.j2medev.sample.chapter3;

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

public class TextBoxMidlet extends MIDlet {
    
    //根据构造函数创建一个TextBox实例
    private TextBox textBox = new TextBox("UIDemo", "图形用户界面高级组件之TextBox", 1024, TextField.ANY);
    private Display display = null;
    
    public void startApp() {
        if(display==null) {
            //第一次启动MIDlet，初始化display对象
            display = Display.getDisplay(this);
            //调用setCurrent()方法后，textBox将显示在手机的当前屏幕
            display.setCurrent(textBox);
        }else {
            display.setCurrent(textBox);
        }
        
    }
    
    public void pauseApp() {
    }
    
    public void destroyApp(boolean unconditional) {
    }
}