Java JPanel东面板和中面板似乎重叠
我看过多个类似的帖子,但没有一个像我一样有问题,这看起来相对简单。我有以下代码:Java JPanel东面板和中面板似乎重叠,java,swing,layout-manager,border-layout,Java,Swing,Layout Manager,Border Layout,我看过多个类似的帖子,但没有一个像我一样有问题,这看起来相对简单。我有以下代码: public PlayScreen(Player player){ this.player = player; playScreen = new JPanel(); playScreen.setLayout(new BorderLayout()); setTowerButtons(); playScreen.add(towerButtons, BorderLayout.EAS
public PlayScreen(Player player){
this.player = player;
playScreen = new JPanel();
playScreen.setLayout(new BorderLayout());
setTowerButtons();
playScreen.add(towerButtons, BorderLayout.EAST); //line 6
setDetailLabels();
playScreen.add(detailPanel, BorderLayout.WEST);
setMap("map.png");
playScreen.add(new JButton("hello"), BorderLayout.CENTER); //line 10
playScreen.setVisible(true);
}
public class View {
private JFrame frame;
private Container contentPane;
private Player player;
private LoadScreen loadScreen;
private PlayScreen playScreen;
public View(Player player){
frame = new JFrame("Display");
contentPane = frame.getContentPane();
contentPane.setLayout(new BorderLayout());
this.player = player;
frame.setVisible(true);
frame.pack();
}
public void makeLoadScreen(){
loadScreen = new LoadScreen();
contentPane.add(loadScreen.getLoadScreen(), BorderLayout.CENTER);
frame.pack();
}
public void makePlayScreen(Player player){
contentPane.remove(loadScreen.getLoadScreen());;
playScreen = new PlayScreen(player);
contentPane.add(playScreen.getPlayScreen());
frame.pack();
}
public class LoadScreen{
private JPanel loadScreen;
public LoadScreen(){
loadScreen = new JPanel();
JButton play = new JButton("Play");
JButton load = new JButton("Load");
loadScreen.setLayout(new GridLayout(2,1,0,0));
loadScreen.add(play);
loadScreen.add(load);
play.addActionListener(new OpenActionListener());
load.addActionListener(new LoadActionListener());
}
public class OpenActionListener implements ActionListener{
public void actionPerformed(ActionEvent e){
makePlayScreen(player);
}
}
}
}
首先创建视图类。我手动调用makeLoadScreen()方法(尽管稍后我会将其更改为自动执行此操作),该方法创建嵌套类中描述的LoadScreen。这提供了两个按钮的视图:播放和加载。单击“播放”,然后创建问题所在的播放屏幕
运行时,detailPanel始终按预期显示在左上角。但towerButtons面板消失,显示“hello”按钮,填满了屏幕的其余部分。如果我切换第6行和第10行,“hello”按钮消失,towerButtons面板显示出来,填满了屏幕的其余部分
相反,我希望towerButtons显示在右边,在这个面板和detailPanel之间有一个“hello”按钮
编辑:添加了代码的其余部分,应该早点完成,抱歉!
Edits2:问题在于“towerButtons”,与JPanel的叠加无关
我想在右边显示towerButtons,在这和detailPanel之间有“hello”按钮
问题可能出在代码的其他地方,因此我认为这对您没有帮助,但是:
public class Example extends JFrame {
Example() {
JPanel playScreen = new JPanel();
playScreen.setLayout(new BorderLayout());
JPanel towerButtons = new JPanel();
towerButtons.add(new JLabel("towerButtons"));
playScreen.add(towerButtons, BorderLayout.EAST);
JPanel detailPanel = new JPanel();
detailPanel.add(new JLabel("detailPanel"));
playScreen.add(detailPanel, BorderLayout.WEST);
playScreen.add(new JButton("hello"), BorderLayout.CENTER);
add(playScreen);
setDefaultCloseOperation(EXIT_ON_CLOSE);
pack();
setLocationRelativeTo(null);
setVisible(true);
}
public static void main(String args[]) {
new Example();
}
}
为了获得更好的帮助,请发布屏幕截图和一个复制您看到的行为的链接。请引用类似的链接。问题确实出在代码的其他地方,结果是“towerButtons”JPanel没有正确配置,因此生成了一个空白。切换6号线和10号线出于完全不同的原因产生了相反的问题,因此JPanel似乎重叠了,这是巧合。