Thread PaintComponent

[hans teeuwen]

I have the method PaintComponent that I want to invoke every second, to update my drawn image.

When I put repaint() in my run method it doesn't invoke the paintComponent(). The run method is being executed but it doesn't call the paintComponent();

  

    @Override
    public void paintComponent(Graphics g) {
        System.out.println("Class: LoadImage, Method: Paintcomponent");
        g.drawImage(img, 0, 0, null);
        g.setColor(Color.GREEN);
        //Omzetten van snelheid naar radialen
        double radialen = ((((snelheid + i) - 50) / 100.0) * (Math.PI));
        //Bepaal coordinaten
        x = (straal) + (Math.sin(radialen) * straal);
        y = (straal) - (Math.cos(radialen) * straal);
        //Teken lijn
        g.drawLine(72, 70, (int) x, (int) y);
        
    }

    public void run() {
        while (true) {
            try {

                System.out.println("Class: LoadImage, Method:Run, Invoked:" + i);
                i++;
                Thread.sleep(1000);
            } catch (InterruptedException ex) {
                Logger.getLogger(LoadImage.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
  

I've read some things about a eventlistener that I should use. Could someone enlighten me?

[Rob Spoor]

"hans teeuwen", I have warned you about your name before. Please change it to match our naming policy. That means no fictitious names like your current one.

Read Concurrency in Swing to see how threads and Swing should be combined. In this case, I suggest a javax.swing.Timer.