java - 如何更改 JTextField 的不可编辑前景

Question

我想为我的应用程序中的所有文本字段更改不可编辑的前景(以避免难以理解 JTextComponent.setEditable(false))，但未能为 UIManager 找到合适的属性键 去做。是否可以全局更改不可编辑的前景？

Answer 1

在“正常”外观下，您可以使用 "TextField.inactiveBackground" 键，对于文本，您可以使用 "TextField.inactiveForeground"

例如

UIManager.put("TextField.inactiveBackground", new ColorUIResource(Color.RED));

看起来和感觉 Nimbus 可能需要一些“额外”的工作......

import java.awt.Color;
import java.awt.EventQueue;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.JFrame;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.plaf.ColorUIResource;

public class NonEdtiableField {

    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                try {
                    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                } catch (ClassNotFoundException ex) {
                } catch (InstantiationException ex) {
                } catch (IllegalAccessException ex) {
                } catch (UnsupportedLookAndFeelException ex) {
                }

                UIManager.put("TextField.inactiveBackground", new ColorUIResource(Color.RED));

                JFrame frame = new JFrame("Test");
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                frame.setLayout(new GridBagLayout());
                GridBagConstraints gbc = new GridBagConstraints();
                gbc.gridwidth = GridBagConstraints.REMAINDER;
                JTextField editable = new JTextField(10);
                JTextField nonEditable = new JTextField(10);
                nonEditable.setEditable(false);
                frame.add(editable);
                frame.add(nonEditable);
                frame.pack();
                frame.setLocationRelativeTo(null);
                frame.setVisible(true);
            }
        });
    }

}