Question

我想将StateChanged方法中选定的选项卡索引值推送/调用到另一个类或私有方法，我该怎么做呢，

    private class TabSelect implements ChangeListener {
    @Override
    public void stateChanged(ChangeEvent e) {
        JTabbedPane source = (JTabbedPane) e.getSource();
        if (source.getSelectedComponent() != null) {
            source.getSelectedIndex();

        }

    }
}

我想将此索引值推送到以下方法（或同一包中的另一个公共类）。怎么做？

private JPanel CreateSlice() {

        JPanel Slice = new JPanel();
        Slice.setPreferredSize(new Dimension(550, 600));
        Slice.add(button);
        return Slice;

    }

这是CreateSlice的功能

private class TabPlus implements ActionListener {
    @Override
    public void actionPerformed(ActionEvent e) {
        JPanel panel = CreateSlice();
        String title = "Slice " + String.valueOf(pane.getTabCount());
        pane.insertTab(title, null, panel, null, pane.getTabCount() - 1);
    }
}

Answer 1

@Override
public void stateChanged(ChangeEvent e) {
    JTabbedPane source = (JTabbedPane) e.getSource();
    if (source.getSelectedComponent() != null) {
       int index =  source.getSelectedIndex();
       CreateSlice(index);
    }

}



public JPanel CreateSlice(int index) {
        //do whatever you want with index
        JPanel Slice = new JPanel();
        Slice.setPreferredSize(new Dimension(550, 600));
        Slice.add(button);
        return Slice;

    }

请注意，您的CreateSlice方法应该是公开的

Answer 2

int index =  source.getSelectedIndex(); // Save it to variable

createSlice(index); // pass it into new method, follow camelCase for bestPractice

 private JPanel createSlice(int index) {
   //your implementation
 }

如何将getSelectedIndex值从StateChanged方法推送/调用到另一个方法/类？

2 个答案: