亲爱的Stackoverflow之友，
我很乐意请求你的帮助，因为我坚持使用小型界面编程：
这是我正在尝试做的事情： 我有一个带有几个内部框架的JDesktopPane。逻辑是： - DesktopPane以启动窗口（JInternalFrame）开始，该窗口具有级别1的按钮 - 用户单击级别1并使用按钮打开新的JInternal窗口级别1（启动窗口关闭） - 用户单击按钮并设置级别1以完成 - JInternal Window Level 1关闭 - 重新打开启动窗口但是，当Level 1设置为已完成时，现在Launch窗口有一个新按钮可访问2级 - 用户点击该按钮并访问级别2，依此类推
这是发生的事情 - 我启动程序，我得到了启动窗口，其中包含1级按钮 - 我点击按钮，然后返回启动窗口 但 - 2级没有按钮 - 此外：如果我再次点击按钮级别1，我会收到错误
这里是我的代码：我希望有人能指出我正确的方向 MAIN CLASS
package gioco;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JInternalFrame;
import javax.swing.border.EmptyBorder;
public class AllInAWindow extends JFrame {
//create components outside constructor
JDesktopPane MainDesktopPane = new JDesktopPane();
JInternalFrame IFrameLaunchWindow = new JInternalFrame();
JInternalFrame IFrameLevel1 = new JInternalFrame();
JInternalFrame IFrameLevel2 = new JInternalFrame();
//let's create the constructor
public AllInAWindow() {
initUI();
}
public void initUI(){
VariablesSetEGet VariablesSetEGetObj = new VariablesSetEGet();
//-------------------------IFrame Level1--------------------------//
//interface of IFrame Level1
IFrameLevel1.setTitle("Level 1");
IFrameLevel1.setSize(200, 200);
IFrameLevel1.setLocation(200, 200);
IFrameLevel1.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
JButton action1L1 = new JButton("action 1 Level1");
action1L1.setBorder(new EmptyBorder(5 ,5, 5, 5));
IFrameLevel1.add(action1L1);
//button action
roundLevelAction1 roundLevelAction1Obj = new roundLevelAction1(); //create object of the constructor
action1L1.addActionListener(roundLevelAction1Obj);//add listener to JButton and pass it through the constructor
//-------------------------IFrame Level2--------------------------//
//interface of IFrame Level2
IFrameLevel2.setTitle("Level 2");
IFrameLevel2.setSize(200, 200);
IFrameLevel2.setLocation(300, 300);
IFrameLevel2.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
JButton action1L2 = new JButton("action 1 Level2");
action1L2.setBorder(new EmptyBorder(5 ,5, 5, 5));
IFrameLevel2.add(action1L2);
//button action
roundLevelAction2 roundLevelAction2Obj = new roundLevelAction2(); //create object of the constructor
action1L2.addActionListener(roundLevelAction2Obj);//add listener to JButton and pass it through the constructor
//-------------------------iFrame Launch window-----------------------------//
IFrameLaunchWindow.setLayout(null);
IFrameLaunchWindow.setTitle("INIZIO");
IFrameLaunchWindow.setClosable(true);
IFrameLaunchWindow.setDefaultCloseOperation(JInternalFrame.DISPOSE_ON_CLOSE);
IFrameLaunchWindow.setSize(400, 400);
//button level 1
JButton ButtonLevel1 = new JButton("level1"); //create the button variable
ButtonLevel1.setSize(200, 40);
ButtonLevel1.setLocation(100, 120);
ButtonLevel1.addActionListener//add the listener so that the button can launch the window with the board level
(new ActionListener()
{
public void actionPerformed (ActionEvent lanciaLevel1) //create the action
{
MainDesktopPane.add(IFrameLevel1); //launch the frame with the level 1
IFrameLevel1.setVisible(true); //set it to visible
IFrameLaunchWindow.dispose();//close this launch window
}
}
);
IFrameLaunchWindow.add(ButtonLevel1); //add the button of the level 1
ButtonLevel1.setVisible(true);
//button level 2
JButton ButtonLevel2 = new JButton("level2");
ButtonLevel2.setSize(200, 40);
ButtonLevel2.setLocation(100, 180);
ButtonLevel2.addActionListener
(new ActionListener()
{
public void actionPerformed (ActionEvent lanciaLevel2)
{
MainDesktopPane.add(IFrameLevel2); //launch the frame with the level 2
IFrameLevel1.setVisible(true); //set it to visible
IFrameLaunchWindow.dispose();//close this launch window
}
}
);
//same as before but here the if: if level1 is not set to completed the button for level2 won't appear
if (VariablesSetEGetObj.getL1()==1){
IFrameLaunchWindow.add(ButtonLevel2);
ButtonLevel2.setVisible(true);
}
//button level 3 (just for image, same logic)
JButton ButtonLevel3 = new JButton("level3");
ButtonLevel3.setSize(200, 40);
ButtonLevel3.setLocation(100, 240);
if (VariablesSetEGetObj.getL2()==1){
IFrameLaunchWindow.add(ButtonLevel3);
ButtonLevel3.setVisible(true);
}
MainDesktopPane.add(IFrameLaunchWindow); //start the main panel with the launch window
IFrameLaunchWindow.setVisible(true);
add(MainDesktopPane);//add the main desktopPane to the Frme
}
class roundLevelAction1 implements ActionListener {//action of the button in IFrame 1
public roundLevelAction1(){
//there are graphical elements here in the original code but not relevant for this
}
@Override
public void actionPerformed(ActionEvent ActionLevel1) {//if button is clicked
VariablesSetEGet VariablesSetEGetObj = new VariablesSetEGet();
VariablesSetEGetObj.setL1(1);//set Level 1 to complete
IFrameLevel1.dispose(); //close L1 window
//go back to launch window but now it should show button to access L2 as L1 has been set to completed
MainDesktopPane.add(IFrameLaunchWindow);
IFrameLaunchWindow.setVisible(true);
}
}
class roundLevelAction2 implements ActionListener {//action of button in IFrame2
public roundLevelAction2(){
//there are graphical elements here in the original code but not relevant for this
}
@Override
public void actionPerformed(ActionEvent ActionLevel2) {//if button is clicked
VariablesSetEGet VariablesSetEGetObj = new VariablesSetEGet();
VariablesSetEGetObj.setL2(1);//set level 2 to complete
IFrameLevel2.dispose(); //close L2 window
//go back to launch window but now it should show button to access L3 as L2 has been set to completed
MainDesktopPane.add(IFrameLaunchWindow);
IFrameLaunchWindow.setVisible(true);
}
}
public static void main (String[]args) {
//as this will launch the "fresh" new game, we set each level (and therefore button)
//to disabled except button 1. we do it here outside the runnable
VariablesSetEGet VariablesSetEGetObj = new VariablesSetEGet();
VariablesSetEGetObj.setL1(0);
VariablesSetEGetObj.setL2(0);
//TRIGGER LAUNCH WINDOW (see ZCode1)
EventQueue.invokeLater
(new Runnable()
{
@Override
public void run()
{
AllInAWindow AllInAWindowObj = new AllInAWindow();
AllInAWindowObj.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
AllInAWindowObj.setVisible(true);
AllInAWindowObj.setSize(800, 800);
}
}
);
}
}
单独课程
public class VariablesSetEGet {
static int L1 = 0;
public void setL1 (int L1){
this.L1 = L1;
}
public int getL1 (){
return L1;
}
static int L2 = 0;
public void setL2 (int L2){
this.L2 = L2;
}
public int getL2 (){
return L2;
}
}
非常感谢您的帮助
答案 0 :(得分：0)
这不是最初问题的解决方案：这是基于MadProgrammer建议的逻辑变化，该建议是放弃JInternalFrame并使用CardLayout 。在CardLayout上做我的研究，我设法做了我想做的事情。 此处代码
import java.awt.CardLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
public class CLayout {
//1) create the Frame
JFrame MainWindow = new JFrame("Finestra di Gioco");
//2) create as many JPanels as messages + levels, but...
JPanel panelCont = new JPanel(); //...the first one needs to contain them all
JPanel FinestraLancio = new JPanel();
JPanel Livello1 = new JPanel();
JPanel Livello2 = new JPanel();
//3) create the buttons to switch among panels
JButton OpenLevel1 = new JButton("Open Level 1");
JButton CompleteLevel1 = new JButton("Complete Level 1");
JButton OpenLevel2 = new JButton("Open Level 2");
JButton CompleteLevel2 = new JButton("Complete Level 2");
//4) create an instance of the card Layout method
CardLayout cl = new CardLayout();
//5) create the constructor
public CLayout(){
//5.a) assign the instance of the card Layout to the container panel
panelCont.setLayout(cl);
//5.b) create the windows insert the buttons, assign the actions
FinestraLancio.add(OpenLevel1);
FinestraLancio.add(OpenLevel2);
OpenLevel2.setVisible(false);
Livello1.add(CompleteLevel1);
Livello2.add(CompleteLevel2);
Livello1.setBackground(Color.yellow);
Livello2.setBackground(Color.blue);
OpenLevel1.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent OpenLevel1){
cl.show(panelCont, "2"); //this "2" is the position indicator,
//we'll discuss it at 5c
}
});
OpenLevel2.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent OpenLevel2){
cl.show(panelCont, "3");
}
});
CompleteLevel1.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent CompleteLevel1){
OpenLevel2.setVisible(true);
cl.show(panelCont, "1");
}
});
CompleteLevel2.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent CompleteLevel2){
OpenLevel2.setVisible(false);
cl.show(panelCont, "1");
}
});
//5.c) now put the elements in the container panel, and add the name of
//the element and the position indicator you will need that position
//indicator when you want to call that specific window
panelCont.add(FinestraLancio, "1"); //"1" is the position indicator
panelCont.add(Livello1, "2");
panelCont.add(Livello2, "3");
//now indicate that the instance of the cardlayout has the container as
//its main panel and inside the container the first panel to be displayed
//is the one with the position indicator "1", i.e. the LaunchWindow
cl.show(panelCont, "1");
//create the main window
MainWindow.add(panelCont);
MainWindow.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
MainWindow.setSize(400, 400);
MainWindow.setVisible(true);
}
public static void main (String[]args){
SwingUtilities.invokeLater
(new Runnable(){
@Override
public void run(){
new CLayout();
}
});
}
}