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图片是我实现的一个聊天界面但是 我的下拉选框是没有用的 我想问下怎样才能下拉表情选框的时候 选择表情 发送后 聊天界面可以显示选择的表情
import java.awt.BorderLayout;
import java.awt.Choice;
import java.awt.Color;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
public class chat extends JFrame implements ActionListener{
Container container;
JButton send;//发送按钮
JButton canel;//取消按钮
JTextArea chatContent;//聊天内容显示窗口
JTextField sentence;//聊天信 息栏
JMenuBar menuBar ;
JMenu operate ;
JMenuItem option ;
JMenu help;
JMenu info;
JMenuItem infomation;
JMenuItem about;
JDialog helpDia;
JLabel helpLab;
/**
*
*/
public chat(){
menuBar = new JMenuBar();
operate = new JMenu("operate" ;
option = new JMenuItem("quit";
operate.add(option);
help = new JMenu("help";
info = new JMenu("info";
infomation = new JMenuItem("infomation";
info.add(infomation);
about = new JMenuItem("about";
help.add(info);
help.add(about);
menuBar.add(operate);
menuBar.add(help);
this.setJMenuBar(menuBar);
events();
//创建表情下拉框
Choice myChoice = new Choice();
myChoice.add("";
myChoice.addItem("^-^";
myChoice.addItem("*_*";
myChoice.addItem("T_T";
myChoice.addItem("@_@");
myChoice.addItem(">3<");
myChoice.addItem("0_o");
myChoice.addItem("- -!");
myChoice.addItem("（>o<）");
myChoice.addItem("囧");
myChoice.addItem("+,-");
myChoice.addItem("+_+");
myChoice.addItem("o_0");
myChoice.addItem("$_$");
myChoice.addItem("*^_^*");
myChoice.addItem("R-R");
myChoice.addItem("囧");
myChoice.addItem("）——（");
myChoice.addItem("O>O");
myChoice.addItem(" .P");
myChoice.insert("ZZZ~~~",2);
myChoice.select(3);
//设置背景颜色
myChoice.setBackground(Color.blue);
setVisible(true);
validate();
//创建下拉框
Choice choose = new Choice();
choose.add("购物逛街广场街");
choose.addItem("心灵花园聊天屋");
choose.addItem("游戏天地交流区");
choose.addItem("舞文弄墨小说区");
choose.addItem("无线山河区");
choose.addItem("水墨梁山区");
choose.addItem("心灵园地区");
choose.addItem("开心天地聊天区");
choose.addItem("跨国交友区");
choose.addItem("同城交友区");
choose.addItem("耽美美文天下区");
choose.insert("返回",  ;
//设置背景颜色和大小
choose.setBackground(Color.RED);
choose.setSize(100,50);
setVisible(true);
validate();
//设置窗口标题
super.setTitle("聊天窗口");
//设置窗口大小
this.setSize(600,400);
//获得主窗口的内容面版
container = this.getContentPane();
//布局方式为BORDERLAYOUT
container.setLayout(new BorderLayout());
//创建存放聊天记录的滚动面板
JScrollPane centerPanel = new JScrollPane();
//放聊天记录的多行文本输入区
chatContent = new JTextArea();
//将文本放入滚动面板
centerPanel.setViewportView(chatContent);
//滚动面板放在文本的中央
container.add(centerPanel,BorderLayout.CENTER);
//文本区域不可编辑
chatContent.setEditable(false);
//创建底部面板对象，存放聊天标签、聊天栏、发送按钮 取消按钮
JPanel bottomPanel = new JPanel();
bottomPanel.setBackground(Color.gray);
//创建顶部面板
JPanel topPanel = new JPanel();
topPanel.setBackground(Color.PINK);
//创建中间面板
JPanel pl = new JPanel();
pl.setLayout(new FlowLayout(FlowLayout.LEFT));
pl.setBackground(Color.orange);
//中间面板加入下拉框，顶部面板加入新建标签
pl.add(choose);
topPanel.add(new JLabel("欢迎来到开心天地聊天室！"));
sentence = new JTextField(20);
send = new JButton("发送");
canel= new JButton("取消");
bottomPanel.add(new JLabel("聊天消息"));
bottomPanel.add(myChoice);
//聊天文本输入框，发送按钮,添加到底部面板
bottomPanel.add(sentence);
bottomPanel.add(send);
bottomPanel.add(canel);
//底部面板，顶部面板，中间面板放在主窗口的底部
container.add(bottomPanel,BorderLayout.SOUTH);
container.add(topPanel,BorderLayout.NORTH);
container.add(pl,BorderLayout.WEST);
//初始化菜单栏需要用到的对话框和标签
helpLab = new JLabel();
helpLab.setHorizontalAlignment(SwingConstants.CENTER);
helpDia = new JDialog(this,true);
helpDia.setBounds(380, 250, 400, 110);
helpDia.add(helpLab);
//注册发送按钮,聊天栏的动作事件
send.addActionListener(this);
sentence.addActionListener(this);
canel.addActionListener(this);
//显示主窗口
this.setVisible(true);
//关闭窗口即是退出程序
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public void actionPerformed(ActionEvent e){
//获取聊天信息
String str =sentence.getText();
if (str != null && ! str.equals(""))
chatContent.append("本人：" + str + "\n");
else
chatContent.append("聊天信息不能为空！\n");
//清空聊天栏里的信息
sentence.setText("");
}
public void events(){
//菜单栏事件--退出
option.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
});
//菜单栏事件--信息
infomation.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
helpDia.setTitle("Infomation");
helpLab.setText("this is the infomation you may want...");
helpDia.setVisible(true);
}
});
}
public static void main(String[] arg){
new chat();
}
} |
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免费注册
发表于 2012-12-27 17:58
发表于 2012-12-27 17:59
