I used setNextFocusableComponent
in JTextArea
, but it does not work because TAB works as a "space" within JTextArea
, how to solve it?
I used setNextFocusableComponent
in JTextArea
, but it does not work because TAB works as a "space" within JTextArea
, how to solve it?
You can use control + TAB to change the focus of a JTextArea
to other components. By default, TAB
inserts tab spaces within this component.
But nothing prevents you from changing this default behavior by adding a < strong> KeyAdapter
to "force" to change focus by clicking TAB
. I will remove this example below from this site :
import javax.swing.*;
import java.awt.*;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
public class TextAreaTabMoveFocus extends JFrame {
public TextAreaTabMoveFocus() {
initialize();
}
private void initialize() {
setSize(300, 300);
setTitle("JTextArea TAB DEMO");
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
setLayout(new BorderLayout());
JTextField textField = new JTextField();
JPasswordField passwordField = new JPasswordField();
final JTextArea textArea = new JTextArea();
JScrollPane scrollPane = new JScrollPane(textArea);
// Add key listener to change the TAB behavior in
// JTextArea to transfer focus to other component forward
// or backward.
textArea.addKeyListener(new KeyAdapter() {
@Override
public void keyPressed(KeyEvent e) {
if (e.getKeyCode() == KeyEvent.VK_TAB) {
if (e.getModifiers() > 0) {
textArea.transferFocusBackward();
} else {
textArea.transferFocus();
}
e.consume();
}
}
});
getContentPane().add(textField, BorderLayout.NORTH);
getContentPane().add(scrollPane, BorderLayout.CENTER);
getContentPane().add(passwordField, BorderLayout.SOUTH);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
new TextAreaTabMoveFocus().setVisible(true);
}
});
}
}
See working: