我试图在单击按钮后加载进度条，按钮在另一个类中，并且swing工作者是类中的类。这是一些代码
public class BigramProgbarTest extends JFrame
{
//Create the connection to Neo4j
//MAIN METHOD
public static void main(String[] args)
{
EventQueue.invokeLater(new Runnable()
{
public void run()
{
//INITIALIZE JFRAME FORM
BigramProgbarTest form=new BigramProgbarTest();
form.setVisible(true);
}
});
}
private static JButton btn;
//CONSTRUCTOR
public BigramProgbarTest()
{
//the form
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(200,200,800,300);
setTitle("Netword Data Table");
getContentPane().setLayout(null);
//ADD SCROLLPANE
JScrollPane scroll=new JScrollPane();
scroll.setBounds(70,80,600,200);
getContentPane().add(scroll);
//THE TABLE
final JTable table=new JTable();
scroll.setViewportView(table);
//THE MODEL OF THE TABLE
DefaultTableModel model=new DefaultTableModel()
{
}
}
};
//Create and run the query here for table
//ASSIGN THE MODEL TO TABLE
table.setModel(model);
model.addColumn("Select"); //Column for check boxes
model.addColumn("Bigrams"); //Column for Bigrams
//A while loop here
} //ENDWHILE
//OBTAIN SELECTED ROW
// BigramProgbarTest fr = new BigramProgbarTest();
JButton btn=new JButton("Get Selected");
btn.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent arg0)
{//A method for the button to do something with seleted rows
}
}
}
});
//ADD BUTTON TO FORM
btn.setBounds(71,39,130,30);
getContentPane().add(btn);
所以在这里你可以看到该类有表格和滚动窗格（只是在它们有影响的情况下显示它们）。我在这个班级的另一个班级里有一个摇摆工人班和进度栏。以下是swingworker类的一些代码。
JProgressBar progressBar = new JProgressBar();
progressBar.setBounds(211, 42, 146, 14);
getContentPane().add(progressBar);
ProgressWorker worker = new ProgressWorker(progressBar);
worker.execute();
}
class ProgressWorker extends SwingWorker<Void, Integer> {
private final JProgressBar progress;
public ProgressWorker(JProgressBar progress) {
this.progress = progress;
}
//btn.addActionListener(new ActionListener() //Trying to find somewhere to use this
@Override
protected Void doInBackground() throws Exception { //This should be done after a button click
//Some code and for loop for the progress bar
final int progr = (int) ((100L * (results.length - i2)) / results.length);
publish(progr);
}//ENDFOR each record// | | ENDFOR each record//
}
return null;
}
//final int progr = ((int) ((100L * (recordLoop - firstRecord)) / (lastRecord-firstRecord)));
@Override
protected void process(List<Integer> chunks) {
progress.setValue(chunks.get(chunks.size() - 1));
super.process(chunks); //This is the process of how the progress bar will load
}
@Override
protected void done() {
progress.setValue(100); //This is the value when process is complete
}
}
}
现在我期望这样做是在单击按钮后运行swingworker类。
目前，进度条只是在点击任何内容之前加载到右边，甚至在我选择复选框之前。所以我希望swingworker能够在执行任何任务之前听取主类的按钮点击。