I had nothing to do, so I wrote a swing interface. After running it, I saw that when the button is clicked, a small box will appear in the middle text that just surrounds the text. This is a sign that the button has gained focus. I think one word: ugly! How to remove it? The almighty Du Niang told me to set the setFocusPainted of the button to false. I tried it and it was ok. I will share the code with you below. You can comment out the sentence about setting the attributes to see the before and after effects.
import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; public class SwingDemo { public static void main(String[] args) { // TODO 自动生成的方法存根 JFrame jframe = new JFrame("Demo"); JButton button = new JButton("JB"); button.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { System.out.println("click JB"); } }); //去掉按钮文字周围的焦点框 button.setFocusPainted(false); jframe.getContentPane().add(button); jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); jframe.setBounds(100, 100, 200, 136); jframe.setVisible(true); } }
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