Beispielfreigabe für die Verwendung des Farbwählers in Java

复制代码代码如下:

Paket com.liuxing.test;

import java.awt.Color;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JButton;

import javax.swing.JColorChooser;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

öffentliche Klasse ColorChooser erweitert JFrame {

private JLabel sampleText = new JLabel("Label");

privater JButton ChooseButton = new JButton("Choose Color");

public static void main(String[] args) {

neuer ColorChooser();

}

public ColorChooser() {

this.setSize(300, 100);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JPanel panel1 = neues JPanel();

sampleText.setBackground(null);

panel1.add(sampleText);

ChooseButton.addActionListener(new ButtonListener());

panel1.add(chooseButton);

this.add(panel1);

this.setVisible(true);

}

Die private Klasse ButtonListener implementiert ActionListener {

public void actionPerformed(ActionEvent e) {

Farbe c = JColorChooser.showDialog(null, "Wählen Sie eine Farbe", sampleText.getForeground());

if (c != null)

sampleText.setForeground(c);

}

}

}