两个类内的国际化;资源包

Internationalization within two classes ; resource bundle

我正在创建一个应用程序,其中有两个 classes - 两个框架。用户打开应用程序并看到带有 3 Jbuttons 的框架,这意味着不同的语言。单击一个特定按钮时,它应该打开下一帧,其中包含所选语言的所有标签。问题是,无论我做什么,它都只能以一种语言打开。我尝试了很多解决方案,但从未奏效。我会很感激一些代码,有什么帮助。

第一个 class,起始帧:

import java.awt.*;
import java.awt.event.*;
import java.util.Locale;
import java.util.ResourceBundle;
import javax.swing.*;
public class StartFrame extends JFrame {
public StartFrame() {
    setSize(480,360);
    setDefaultCloseOperation(EXIT_ON_CLOSE);
    panelFlags = new JPanel();

    this.add(panelFlags);
    panelFlags.setBackground(Color.white);
    buttonFlagPl= new JButton(new ImageIcon(((new ImageIcon("x.png")).getImage()).getScaledInstance(100, 75, java.awt.Image.SCALE_SMOOTH)));
    buttonFlagEn = new JButton(new ImageIcon(((new ImageIcon("y.jpg")).getImage()).getScaledInstance(100, 75, java.awt.Image.SCALE_SMOOTH)));
    buttonFlagDe = new JButton(new ImageIcon(((new ImageIcon("z.jpg")).getImage()).getScaledInstance(100, 75, java.awt.Image.SCALE_SMOOTH)));
    buttonFlagPl.setPreferredSize(new Dimension(100, 75));
    buttonFlagEn.setPreferredSize(new Dimension(100, 75));
    buttonFlagDe.setPreferredSize(new Dimension(100, 75));

    panelFlags.add(buttonFlagPl);
    panelFlags.add(buttonFlagEn);
    panelFlags.add(buttonFlagDe);


    buttonFlagPl.addActionListener (new ActionListener(){
        public void actionPerformed(ActionEvent e) {
            MainFrame mainFramePl= new MainFrame();
            mainFramePl.setVisible(true);
            mainFramePl.setLocationRelativeTo(null);
            mainFramePl.resourceBundle = ResourceBundle.getBundle("labels_pl", new Locale ("pl"));
            dispose();  
        }           
    });

    buttonFlagEn.addActionListener (new ActionListener(){
        public void actionPerformed(ActionEvent e) {
            MainFrame mainFrameEn = new MainFrame();
            mainFrameEn.setVisible(true);
            mainFrameEn.setLocationRelativeTo(null);
            mainFrameEn.resourceBundle = ResourceBundle.getBundle("labels_en",new Locale ("en"));
            dispose();  
        }           
    });

    buttonFlagDe.addActionListener (new ActionListener(){
        public void actionPerformed(ActionEvent e) {
            MainFrame mainFrameDe = new MainFrame();
            mainFrameDe.setVisible(true);
            mainFrameDe.setLocationRelativeTo(null);
            mainFrameDe.resourceBundle =  ResourceBundle.getBundle("labels_de",new Locale ("de"));
            dispose();  
        }           
    });
}

JPanel panelFlags;
JButton buttonFlagPl;
JButton buttonFlagEn; 
JButton buttonFlagDe; 

public static void main(String[] args) {
    StartFrame startFrame = new StartFrame();
    startFrame.setVisible(true);
    startFrame.setLocationRelativeTo(null);     
}
}

这是主框架部分:

public class MainFrame extends JFrame {
public MainFrame(){
    super();
    setSize(1000,640);
    setDefaultCloseOperation(EXIT_ON_CLOSE);
mainPanel = new JPanel(new FlowLayout(500,200,5));
    mainPanelColor = new Color (200,200,230);
    mainPanel.setBackground(mainPanelColor);
    buttonBackToChooseLanguage = new JButton();
 buttonBackToChooseLanguage.setText((resourceBundle).getString("button.back"));

(...)

ResourceBundle resourceBundle = ResourceBundle.getBundle("labels");

public static void main(String[] args) {
    MainFrame window = new MainFrame();
    window.setLocationRelativeTo(null);
    window.setVisible(true);

}

我故意漏掉了其余的代码。问题是,无论我在 "ResourceBundle resourceBundle = ResourceBundle.getBundle("labels");" 中输入什么,它总是为所有按钮提供一种相同的语言,所以我假设 "mainFramePl.resourceBundle = ResourceBundle.getBundle("labels_pl", new Locale ("pl"));" 行不起作用。

在将 resourceBundle 设置为新值之前,您在 MainFrame 构造函数中设置了 buttonBackToChooseLanguage 的标签——而构造函数是 运行它总是设置为 ResourceBundle.getBundle("labels").

所以 MainFrame 看起来像:

MainFrame(ResourceBundle bundle) {
    resourceBundle = bundle;
    // set up the frame ...
    // set labels using resourceBundle
}

你的 actionListeners 看起来像:

buttonFlagDe.addActionListener (new ActionListener(){
    public void actionPerformed(ActionEvent e) {
        MainFrame mainFrameDe = new MainFrame(ResourceBundle.getBundle("labels_de",new Locale ("de")));
        mainFrameDe.setVisible(true);
        mainFrameDe.setLocationRelativeTo(null);
        dispose();  
    }           
});