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如何在 Java 应用程序的底部创建一个栏（如状态栏）？

发布于 2024-09-05 04:15:41 字数 114 浏览 3 评论 0原文

我正在创建一个 Java 应用程序，并且想要一个 bar 在应用程序的底部，我在其中显示一个文本栏和一个状态（进度）栏。

只是我似乎无法在 NetBeans 中找到该控件，也不知道要手动创建的代码。

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笨死的猪 2024-09-12 04:15:41

创建一个带有 BorderLayout 的 JFrame 或 JPanel，给它类似 BevelBorder 或线条边框，使其与其余内容分开，然后在 BorderLayout.SOUTH 添加状态面板。

JFrame frame = new JFrame();
frame.setLayout(new BorderLayout());
frame.setSize(200, 200);

// create the status bar panel and shove it down the bottom of the frame
JPanel statusPanel = new JPanel();
statusPanel.setBorder(new BevelBorder(BevelBorder.LOWERED));
frame.add(statusPanel, BorderLayout.SOUTH);
statusPanel.setPreferredSize(new Dimension(frame.getWidth(), 16));
statusPanel.setLayout(new BoxLayout(statusPanel, BoxLayout.X_AXIS));
JLabel statusLabel = new JLabel("status");
statusLabel.setHorizontalAlignment(SwingConstants.LEFT);
statusPanel.add(statusLabel);

frame.setVisible(true);

以下是上述状态栏代码在我的机器上的结果：

在此处输入图像描述

Create a JFrame or JPanel with a BorderLayout, give it something like a BevelBorder or line border so it is seperated off from the rest of the content and then add the status panel at BorderLayout.SOUTH.

JFrame frame = new JFrame();
frame.setLayout(new BorderLayout());
frame.setSize(200, 200);

// create the status bar panel and shove it down the bottom of the frame
JPanel statusPanel = new JPanel();
statusPanel.setBorder(new BevelBorder(BevelBorder.LOWERED));
frame.add(statusPanel, BorderLayout.SOUTH);
statusPanel.setPreferredSize(new Dimension(frame.getWidth(), 16));
statusPanel.setLayout(new BoxLayout(statusPanel, BoxLayout.X_AXIS));
JLabel statusLabel = new JLabel("status");
statusLabel.setHorizontalAlignment(SwingConstants.LEFT);
statusPanel.add(statusLabel);

frame.setVisible(true);

Here is the result of the above status bar code on my machine:

enter image description here

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回忆躺在深渊里 2024-09-12 04:15:41

不幸的是 Swing 没有对 StatusBars 的本机支持。
您可以使用 BorderLayout 和标签或您需要在底部显示的任何内容：

public class StatusBar extends JLabel {

    /** Creates a new instance of StatusBar */
    public StatusBar() {
        super();
        super.setPreferredSize(new Dimension(100, 16));
        setMessage("Ready");
    }

    public void setMessage(String message) {
        setText(" "+message);        
    }        
}

然后在主面板中：

statusBar = new StatusBar();
getContentPane().add(statusBar, java.awt.BorderLayout.SOUTH);

来自： http://www.java-tips.org/java-se-tips/javax.swing/creating- a-status-bar.html

Unfortunately Swing does not have a native support for StatusBars.
You can use a BorderLayout and a label or whatever you need to display at the bottom:

public class StatusBar extends JLabel {

    /** Creates a new instance of StatusBar */
    public StatusBar() {
        super();
        super.setPreferredSize(new Dimension(100, 16));
        setMessage("Ready");
    }

    public void setMessage(String message) {
        setText(" "+message);        
    }        
}

Then in your Main Panel:

statusBar = new StatusBar();
getContentPane().add(statusBar, java.awt.BorderLayout.SOUTH);

From: http://www.java-tips.org/java-se-tips/javax.swing/creating-a-status-bar.html

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蓬勃野心 2024-09-12 04:15:41

我使用了 L2FProd 中的 swing 库。他们提供的状态栏库非常好。

下面是您将如何使用它：

下载他们提供的 JAR 并将其放入您的类路径
状态栏在内部将栏区域划分为多个区域。每个区域可以包含一个组件（JLabel、JButton 等）。想法是用所需的区域和组件填充栏。

实例化状态栏如下......

导入java.awt.Component;
导入 javax.swing.BorderFactory;
导入 javax.swing.JLabel;
导入 com.l2fprod.common.swing.StatusBar;

StatusBar statusBar = new StatusBar();
statusBar.setZoneBorder(BorderFactory.createLineBorder(Color.GRAY));
状态栏.setZones(
    new String[] { "first_zone", "second_zone", "remaining_zones" },
    新组件[] {
        新的 JLabel(“第一个”),
        新的 JLabel(“第二个”),
        新的 JLabel(“剩余”)
    },
    新字符串[] {"25%", "25%", "*"}
）；

现在将上面的 statusBar 添加到您拥有的主面板（BorderLayout 并将其设置为南侧）。

请在此处查看我正在开发的应用程序之一的示例屏幕截图（它有 2 个区域）。如果您遇到任何问题，请告诉我......

I have used swing library from L2FProd. The Status bar library they have provided is very good.

Below is how you would use it:

Download the JAR they are providing and put it in your classpath
The status bar internally divides the bar area into zone. Each zone can contain a Component (JLabel, JButton, etc). Idea is to fill the bar with required zones and the components.

Instantiate the status bar as below....

import java.awt.Component;
import javax.swing.BorderFactory;
import javax.swing.JLabel;
import com.l2fprod.common.swing.StatusBar;

StatusBar statusBar = new StatusBar();
statusBar.setZoneBorder(BorderFactory.createLineBorder(Color.GRAY));
statusBar.setZones(
    new String[] { "first_zone", "second_zone", "remaining_zones" },
    new Component[] {
        new JLabel("first"),
        new JLabel("second"),
        new JLabel("remaining")
    },
    new String[] {"25%", "25%", "*"}
);

Now add the above statusBar to the main panel you have (BorderLayout and set it to the south side).

See a sample screenshot from one of the apps I am working on here (it has 2 zones). Let me know if you face any issues....

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如梦 2024-09-12 04:15:41

我推荐 SwingX 库中的状态栏组件 - 这是状态栏在这里

< a href="http://www.javalobby.org/java/forums/t18979.html" rel="nofollow noreferrer">这里是一个很好的使用示例。

祝你玩得开心。

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巷子口的你 2024-09-12 04:15:41

为了比接受的答案更现代的外观，请使用 GridBagLayout 和 JSeparator：

JPanel outerPanel = new JPanel(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridx = 0;
gbc.anchor = GridBagConstraints.PAGE_START;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.weightx = 1;
gbc.weighty = 0;

JPanel menuJPanel = new JPanel();
menuJPanel.setBorder(BorderFactory.createMatteBorder(1, 1, 1, 1, Color.RED));
outerPanel.add(menuJPanel, gbc);

gbc.insets = new Insets(5, 5, 5, 5);
gbc.fill = GridBagConstraints.BOTH;
gbc.weighty = 1;

JPanel contentJPanel = new JPanel();
contentJPanel.setBorder(BorderFactory.createMatteBorder(1, 1, 1, 1, Color.BLUE));
outerPanel.add(contentJPanel, gbc);

gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.weighty = 0;
gbc.insets = new Insets(0, 0, 0, 0);

outerPanel.add(new JSeparator(JSeparator.HORIZONTAL), gbc);
outerPanel.add(new JPanel(), gbc);

For a more modern look than the accepted answer go with a GridBagLayout and a JSeparator:

JPanel outerPanel = new JPanel(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridx = 0;
gbc.anchor = GridBagConstraints.PAGE_START;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.weightx = 1;
gbc.weighty = 0;

JPanel menuJPanel = new JPanel();
menuJPanel.setBorder(BorderFactory.createMatteBorder(1, 1, 1, 1, Color.RED));
outerPanel.add(menuJPanel, gbc);

gbc.insets = new Insets(5, 5, 5, 5);
gbc.fill = GridBagConstraints.BOTH;
gbc.weighty = 1;

JPanel contentJPanel = new JPanel();
contentJPanel.setBorder(BorderFactory.createMatteBorder(1, 1, 1, 1, Color.BLUE));
outerPanel.add(contentJPanel, gbc);

gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.weighty = 0;
gbc.insets = new Insets(0, 0, 0, 0);

outerPanel.add(new JSeparator(JSeparator.HORIZONTAL), gbc);
outerPanel.add(new JPanel(), gbc);

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老子叫无熙 2024-09-12 04:15:41

您应该使用正在处理的框架的分层窗格：

    JPanel statusPanel = new JPanel();
    statusPanel.setBorder(new MatteBorder(1, 0, 0, 0, Color.gray));
    statusPanel.setLayout(new BorderLayout());
    statusPanel.setMinimumSize(new Dimension(0, 16));
    statusPanel.setLayout(new BoxLayout(statusPanel, BoxLayout.X_AXIS));
    statusPanel.add(statusIcon, LEFT_ALIGNMENT);
    statusPanel.add(statusLabel);
    rootPane.add(statusPanel, BorderLayout.SOUTH);

    getLayeredPane().setLayout(new BorderLayout());
    getLayeredPane().add(statusPanel, BorderLayout.SOUTH);

You should use the Layered Pane of the frame you are working on:

    JPanel statusPanel = new JPanel();
    statusPanel.setBorder(new MatteBorder(1, 0, 0, 0, Color.gray));
    statusPanel.setLayout(new BorderLayout());
    statusPanel.setMinimumSize(new Dimension(0, 16));
    statusPanel.setLayout(new BoxLayout(statusPanel, BoxLayout.X_AXIS));
    statusPanel.add(statusIcon, LEFT_ALIGNMENT);
    statusPanel.add(statusLabel);
    rootPane.add(statusPanel, BorderLayout.SOUTH);

    getLayeredPane().setLayout(new BorderLayout());
    getLayeredPane().add(statusPanel, BorderLayout.SOUTH);

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