如何使可滚动到jPanel [英] How to make scrollable to jPanel

问题描述

我正在制作摇摆应用程序。我的jPanel的高度太高了。所以我想让这个面板可滚动。：
以下是我对我的要求的描述。

I am making swing application. And there is too much height of my jPanel. So I want to make this panel as scrollable.: Following is my description of my requirement.

我在一个jpanel中有四个jpanel我的意思是：

I have four jpanel in one jpanel I mean:

JPanel p1=new JPanel();
JPanel p2=new JPanel();
JPanel p3=new JPanel();
JPanel p4=new JPanel();

我正在添加 p2，p3，p4 在 p1 里面，如下面的输出：

I am adding p2, p3, p4 inside p1 like following output:

如上图所示，面板的高度高于计算机屏幕高度。所以我想通过滚动显示我的面板在计算机屏幕上的所有内容。

like above showing panel has more height than computer screen height. So I want to display all content of my panel on computer screen by scrolling.

我在这里搜索并发现了以下问题：

I searched here and found the following questions:

• 如何使JPanel可滚动？


• 怎么做我垂直滚动到JPanel？

• How to make a JPanel scrollable?
• How do i get vertical scrolling to JPanel?

然而，答案并没有解决我的问题。

However, the answers did not solve myproblem.

推荐答案

在没有看到你的代码的情况下，我的猜测是你没有 JScrollpane 来提供你想要的可滚动行为。

Without seeing your code, my guess is that you don't have a JScrollpane to provide the scrollable behaviour you want.

JPanel mainPanel = new JPanel(); //This would be the base panel of your UI
JPanel p1=new JPanel();
JPanel p2=new JPanel();
JPanel p3=new JPanel();
JPanel p4=new JPanel();
JPanel newPanel = new JPanel();
newPanel.add(p1);
newPanel.add(p2);
newPanel.add(p3);
newPanel.add(p4);
JScrollPane pane = new JScrollPane(newPanel);
mainPanel.add(pane);

由于您使用NetBeans，请添加 JScrollpane 从调色板中，您将添加一个面板以包含其他4个面板。我想你也可以将4面板添加到 JScrollpane 。

Since you use NetBeans, add a JScrollpane from the palette in which you'll add a panel to contain the 4 others. I think you could also just add the 4 panel into the JScrollpane.

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