Mega Code Archive
Change Cursor in a thread for animation
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import java.awt.Cursor;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
public class Main implements Runnable, ActionListener {
private boolean animate;
private Cursor[] cursors = new Cursor[] { Cursor.getPredefinedCursor(Cursor.N_RESIZE_CURSOR),
Cursor.getPredefinedCursor(Cursor.NE_RESIZE_CURSOR) };
private JFrame frame;
public Main(JFrame frame) {
animate = false;
this.frame = frame;
}
public void run() {
int count = 0;
while (animate) {
try {
Thread.currentThread().sleep(200);
} catch (Exception ex) {
}
frame.setCursor(cursors[count % cursors.length]);
count++;
}
frame.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
}
public void actionPerformed(ActionEvent evt) {
JButton button = (JButton) evt.getSource();
if (animate) {
button.setText("Start Animation");
animate = false;
} else {
animate = true;
button.setText("Stop Animation");
new Thread(this).start();
}
}
public static void main(String[] args) {
JFrame frame = new JFrame();
JButton button = new JButton("Start Animation");
button.addActionListener(new Main(frame));
frame.getContentPane().add(button);
frame.setSize(300, 300);
frame.setVisible(true);
}
public static void p(String str) {
System.out.println(str);
}
}
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