Administrace komentářů

To prvni reseni jsem tedy zkusil implementovat nejak takto:

GUI trida:

public class SwingWorkerTest extends javax.swing.JFrame {

    protected String result;

    public void setResult(String result)
    {
        this.result = result;
    }

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt)                                         
    {                                               
        SwingWorker swingWorker = new SwingWorkerChild(this);
        swingWorker.execute();
        jLabel1.setText(result);
     }
     ...
}

SwingWorker trida:

public class SwingWorkerChild extends SwingWorker String, Void 
{
    protected String result;
    protected SwingWorkerTest GUIClass;

    public SwingWorkerChild(SwingWorkerTest GUIClass)
    {
        this.GUIClass = GUIClass;
    }

    @Override
    public String doInBackground()
    {
        try
        {
            Thread.sleep(4000);
        } catch (InterruptedException ex)
        {
            ex.printStackTrace();
        }
        return "Hello" + " " + "there!";
    }

    @Override
    public void done() {
        try
        {
            GUIClass.setResult(get());
            //System.out.println("Result = "+result);
        } catch (InterruptedException ex)
        {
            ex.printStackTrace();
        } catch (ExecutionException ex)
        {
            ex.printStackTrace();
        }
    }

}

Jenze jsem narazil na ten samy problem zde:

swingWorker.execute();
jLabel1.setText(result);

V momente kdy chci pouzit promennou result, tak ta jeste neni hotova a do JLable1 se ulozi prazdny text. Resenim by asi bylo z metody done() rovnou menit ten text na jLabel1 - tak jste to myslel?

Chtel bych se zeptat na to treti reseni, mohl byste prosim nacrtnou kostru jak by to pro tento pripad asi vypadalo? Dekuji