设置网格布局JButton的大小 [英] set JButton size in gridLayout

问题描述

如何设置网格布局的JButton的大小？否则，按钮的大小有很大的宽度和它的不听的setSize或的setBounds或设置preferedSize。

  addBut =的新的JButton（添加）;    addBut.addActionListener（本）;
    deleteBut =的新的JButton（删除）;
    deleteBut.addActionListener（本）;
    selectionPanel =新JPanel（）;
    selectionPanel.setLayout（新的GridLayout（2,2））;
    的TitledBorder selectionBorder =新的TitledBorder（「购股权」）;
    selectionBorder.setTitleColor（Color.BLUE）;
    selectionPanel.setBorder（selectionBorder）;
    selectionPanel.add（新的JLabel（部门名称））;
    selectionPanel.add（新的JTextField（DEPTNAME））;
    selectionPanel.add（addBut）;
    selectionPanel.add（deleteBut）;    selectionPanel.set preferredSize（新尺寸（900100））;
 

解决方案

我相信设置网格布局（2,2）将覆盖到面板制成大小的变化。为了更precise，使用的GridBagConstraints;

 私人的JTextField字段1 =新的JTextField（）;
私人的JButton addBtn =的新的JButton（拯救）; 公共无效addComponents（集装箱窗格）{
        pane.setLayout（新的GridBagLayout（））;
        GridBagConstraints的C =新的GridBagConstraints（）;
// 组件
    c.gridwidth = 1;
    c.weightx = 0.01;
    c.weighty = 0.2;
    c.gridx = 0;
    c.gridy = 1;
    pane.add（FIELD1，C）;        c.gridwidth = 1;
    c.weightx = 0.01;
    c.weighty = 0.2;
    c.gridx = 0;
    c.gridy = 1;
    pane.add（addBtn，C）;
}
公众的MainView（）{
        //创建和设置窗口。
        JFrame的帧=新的JFrame（NAME）;
        frame.setDefaultCloseOperation（JFrame.EXIT_ON_CLOSE）;        //设置内容窗格中。
        addComponents（frame.getContentPane（））;        //显示窗口。
        frame.pack（）;
        frame.setVisible（真）;
        frame.setResizable（假）;
        frame.setSize（400，125）;
        frame.setLocation（400，300）;
    }
 

How to set the size of jbutton in gridlayout? otherwise the button size have lot of width and its not listening setSize or setBounds or setPreferedSize.

    addBut = new JButton("Add");

    addBut.addActionListener(this);
    deleteBut = new JButton("Delete");
    deleteBut.addActionListener(this);
    selectionPanel = new JPanel();
    selectionPanel.setLayout(new GridLayout(2,2));
    TitledBorder selectionBorder = new TitledBorder("Options");
    selectionBorder.setTitleColor(Color.BLUE);
    selectionPanel.setBorder(selectionBorder);
    selectionPanel.add(new JLabel("Department Name"));
    selectionPanel.add(new JTextField(deptName));
    selectionPanel.add(addBut);
    selectionPanel.add(deleteBut);

    selectionPanel.setPreferredSize(new Dimension(900,100));

解决方案

I believe setting GridLayout(2,2) will override size changes made to the panels. To be more precise, use GridBagConStraints;

private JTextField field1 = new JTextField();
private JButton addBtn = new JButton("Save: ");

 public void addComponents(Container pane) {
        pane.setLayout(new GridBagLayout());
        GridBagConstraints c = new GridBagConstraints();
// Components
    c.gridwidth = 1;
    c.weightx = .01;
    c.weighty = .2;
    c.gridx = 0;
    c.gridy = 1;
    pane.add(field1, c);

        c.gridwidth = 1;
    c.weightx = .01;
    c.weighty = .2;
    c.gridx = 0;
    c.gridy = 1;
    pane.add(addBtn, c);
}
public MainView()  {
        //Create and set up the window.
        JFrame frame = new JFrame("NAME");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        //Set up the content pane.
        addComponents(frame.getContentPane());

        //Display the window.
        frame.pack();
        frame.setVisible(true);
        frame.setResizable(false);
        frame.setSize(400, 125);
        frame.setLocation(400, 300);
    }

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