在 Java Swing 中将 JButton 覆盖在 JLabel 上？

发布于 2025-01-02 22:33:28 字数 947 浏览 6 评论 0原文

是否可以在 Swing 中将按钮覆盖在标签上？

例如，如果有一个带有图像但没有文本的 JLabel，并且我想将我的按钮覆盖在这个 JLabel 上。标签的定义类似于：

myLabel = new javax.swing.JLabel(new ImageIcon( myPicture ));

如果没有，那么我如何实现这一点有任何想法，谢谢。

编辑：实际上，我读到了有关将 JPanel 添加到 JLabel 的内容，当我添加带有按钮布局的面板时，它编译得很好，但没有任何东西可见，只有带有图像的 JLabel

更新：正如@paranoid-android 所建议的，不知何故我已经解决了我的问题。然而，我仍然必须知道如何自定义覆盖在 JLabel 之上的组件的位置，因为我没有太多控制权（可能是因为通常我使用 netbeans 来绘制布局，这需要硬编码）。

像这样的东西有效：

ImagePanel(Image image, int id) {
    this.image = image;
    this.tile = false;

    JButton backButton = new JButton();
    JButton nextButton = new JButton();
    backButton.setText(" BACK ");
    nextButton.setText(" NEXT ");


    add(backButton);
    add(nextButton);

};

@Override
public void paintComponent(Graphics g) {
    super.paintComponent(g);
    g.drawImage(image, 0, 0, getWidth(), getHeight(), this);
}

原文

Is it possible to overlay a Button over a Label in Swing?

For example, if have a JLabel with image and no text, and i want to overlay my button over this JLabel. Label is defined something like:

myLabel = new javax.swing.JLabel(new ImageIcon( myPicture ));

If not, then any ideas how can i realize this, thank you.

EDIT: Actually i read about adding JPanel to a JLabel, when i add a Panel with button layout, it compiles fine but nothing is visible, just the JLabel with image

UPDATE: As suggested by @paranoid-android, somehow i have solved my problem. However i still have to know how can i customize the positions of components overlayed on top of JLabel as i don't have much control (probably because normally i use netbeans for drawing layouts, and this would require hard coding).

Something Like this worked:

ImagePanel(Image image, int id) {
    this.image = image;
    this.tile = false;

    JButton backButton = new JButton();
    JButton nextButton = new JButton();
    backButton.setText(" BACK ");
    nextButton.setText(" NEXT ");


    add(backButton);
    add(nextButton);

};

@Override
public void paintComponent(Graphics g) {
    super.paintComponent(g);
    g.drawImage(image, 0, 0, getWidth(), getHeight(), this);
}

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心头的小情儿 2025-01-09 22:33:28

您可以使用 JLayeredPane 来完成此操作，但如果我理解正确的话，绝对最好的方法是重写 paintComponent：

// as part of your JPanel
@Override
public void paintComponent(Graphics g){
     super.paintComponent(g);
     g.drawImage(background, 0, 0, this);
}

然后您可以将组件添加到面板中，如下所示您喜欢，无需 JLabel。

You can do it using a JLayeredPane, although if I understand correctly, the absolute best way to do that would be to override paintComponent:

// as part of your JPanel
@Override
public void paintComponent(Graphics g){
     super.paintComponent(g);
     g.drawImage(background, 0, 0, this);
}

Then you can add components to the panel as you like, without the need for the JLabel.

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爱她像谁 2025-01-09 22:33:28

您可以重叠按钮和标签，但必须使用固定布局来执行此操作。您也许可以使用 gridBagLayout 来完成，但我对此表示怀疑。

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如梦初醒的夏天 2025-01-09 22:33:28

谢谢鲁特尼森。
这对我来说很有效。
我稍微修改了一下。

@Override
protected void paintComponent(Graphics g) {
    super.paintComponent(g); //To change body of generated methods, choose Tools | Templates.
    try {
        ImageIcon icon =  new ImageIcon(getClass().getClassLoader().getResource("img/lake.jpeg"));        
        g.drawImage(icon.getImage(),0,0,this);

    } catch (Exception ex) {
        Logger.getLogger(InfoPanel.class.getName()).log(Level.SEVERE, null, ex);
    }            
}

Thanks rtheunissen.
That did the trick for me.
I modified it a little.

@Override
protected void paintComponent(Graphics g) {
    super.paintComponent(g); //To change body of generated methods, choose Tools | Templates.
    try {
        ImageIcon icon =  new ImageIcon(getClass().getClassLoader().getResource("img/lake.jpeg"));        
        g.drawImage(icon.getImage(),0,0,this);

    } catch (Exception ex) {
        Logger.getLogger(InfoPanel.class.getName()).log(Level.SEVERE, null, ex);
    }            
}

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