如何从 JOptionPane
中移除图标?
ImageIcon icon = new ImageIcon(image);
JLabel label = new JLabel(icon);
int result = JOptionPane.showConfirmDialog((Component) null, label, "ScreenPreview", JOptionPane.OK_CANCEL_OPTION);
如何从 JOptionPane
中移除图标?
ImageIcon icon = new ImageIcon(image);
JLabel label = new JLabel(icon);
int result = JOptionPane.showConfirmDialog((Component) null, label, "ScreenPreview", JOptionPane.OK_CANCEL_OPTION);
您可以通过直接指定消息的外观来完成此操作。
您的代码将采用默认样式,而此代码将使用“PLAIN_MESSAGE”样式,该样式缺少图标。组件的行为保持不变。
JOptionPane.showConfirmDialog(null, label, "ScreenPreview", JOptionPane.OK_CANCEL_OPTION, JOptionPane.PLAIN_MESSAGE);
更多信息:http://docs.oracle.com/javase/6/docs/api/javax/swing/JOptionPane.html
通过使用下面的透明图标(而不是黑色的“闪屏图像”),这相当容易。尽管请注意,虽然选项窗格在显示方式上提供了一些“摆动空间”,但更改几个内容后,使用 JDialog
更容易。
import java.awt.*;
import java.awt.image.BufferedImage;
import javax.swing.*;
class IconFree {
public static void main(String[] args) {
Runnable r = new Runnable() {
@Override
public void run() {
// A transparent image is invisible by default.
Image image = new BufferedImage(
1, 1, BufferedImage.TYPE_INT_ARGB);
JPanel gui = new JPanel(new BorderLayout());
// ..while an RGB image is black by default.
JLabel clouds = new JLabel(new ImageIcon(new BufferedImage(
250, 100, BufferedImage.TYPE_INT_RGB)));
gui.add(clouds);
JOptionPane.showConfirmDialog(null, gui, "Title",
JOptionPane.OK_CANCEL_OPTION,
JOptionPane.QUESTION_MESSAGE,
new ImageIcon(image));
}
};
// Swing GUIs should be created and updated on the EDT
// http://docs.oracle.com/javase/tutorial/uiswing/concurrency/initial.html
SwingUtilities.invokeLater(r);
}
}
在JOptionPane.QUESTION_MESSAGE
的位置上写入-1。