IntelliJ IDEA中的自定义视图类

Question

So I am building a Swing layout in IntelliJ IDEA using the layout manager GridLayoutManager(IntelliJ).

It's going ok, I can layout all my stuff etc but everything is in the same code file and considering I am using a JPanel with a JTabbedPane, I would like each pane of the tabbed pane to be represented in a separate class.

How is this possible?

Answer 1

There are a couple ways you could do this, either extending JPanel or creating another class which contains a JPanel

Inheritance Based Solution

public class MyCustomPanel extends JPanel {

    // implement your custom behavior in here
}

Then in your where you create your JTabbedPane you'd have something like this:

private void init() {
    JTabbedPane jtp = new JTabbedPane();
    JPanel jp = new MyCustomPanel();
    jtp.add(jp);
}

Although this works, extending JPanel may cause headaches in the long run. Another approache, which favors composition over inheritance might look something like this:

Composition Based Solution

public class MyCustomPanel {
    private JPanel myPanel = new JPanel();

    public MyCustomPanel() {
        // add your customizations to myPanel
    }

    public JPanel getPanel() {
        return myPanel;
    }
}

and then where you create your JTabbedPane

private void init() {
    JTabbedPane jtp = new JTabbedPane();
    MyCustomPanel mp = new MyCustomPanel();
    jtp.add(mp.getPanel());
}