java 获取 JButton 的默认边框
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/13055120/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
提示：将鼠标放在中文语句上可以显示对应的英文。显示中英文
时间：2020-10-31 11:20:57 来源:igfitidea点击:
Get default border of JButton
提问by Zulatin
How can I get the default border of a JButton?
如何获得 a 的默认边框JButton？
An example is:
一个例子是：
Border border = new JButton().getBorder();
But can I do it without creating a new button?
但是我可以在不创建新按钮的情况下做到这一点吗？
回答by tenorsax
You can retrieve the default border from UIManager:
您可以从UIManager以下位置检索默认边框：
UIManager.getBorder("Button.border");
For example:
例如：
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
public class TestButton {
private static void createAndShowGUI() {
JFrame frame = new JFrame("TestButton");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JButton button = new JButton("Click");
button.setBorder(BorderFactory.createLineBorder(Color.BLACK, 2));
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
((JButton)e.getSource()).setBorder(UIManager.getBorder("Button.border"));
}
});
frame.add(button);
frame.pack();
frame.setLocationByPlatform(true);
frame.setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
}
});
}
}
