CardLayout

Question

有什么方法可以更改使用 CardLayout 添加到面板的面板的名称吗？我想使用 show 方法，而不必使用我在将面板添加到主面板时为其指定的名称。

JPanel panel = new JPanel();
add(panel, "0");
show(this, "0");
...              // I change name of the panel to "1"
show(this, "1"); // now I can do this to show panel

Answer 1

    // original cardPanel1 name is "card1"

    CardLayout lay = (CardLayout)parentPanel.getLayout();
    lay.removeLayoutComponent(cardPanel1);
    lay.addLayoutComponent(cardPanel1, "card4");

    // cardPanel1 can now be shown using "card4" name

CardLayout - 如何更改组件名称

CardLayout - how to change name of component

java