I am a beginner in javaFX and am stuck in this one area. Any help will be appreciated a lot. This is sample app I have made for clear understanding using scene builder. There is a text area and a button.I want to set data into the text area on the button click. The setting happens in another thread. The code is as follows:
import java.net.URL;
import java.util.ResourceBundle;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.*;
import javafx.stage.Stage;
public class TpController{
@FXML
private ScrollPane scrollPane;
@FXML
private Button button;
@FXML
public TextArea txtArea ;
private Stage stage;
public void setTextArea(TextArea txt)
{
this.txtArea = txt ;
}
public TextArea getTextArea()
{
return txtArea;
}
public void setStage(Stage stage)
{
this.stage = stage;
}
public Stage getStage()
{
return stage;
}
public void setTopText(String text) {
// set text from another class
txtArea.setText(text);
}
public void buttonHandler()
{
tpThread t = new tpThread();
t.start();
}
The tpThread class is as follows:
import java.io.IOException;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.control.TextArea;
import javafx.stage.Stage;
public class tpThread extends Thread {
@Override
public void run() {
// TODO Auto-generated method stub
FXMLLoader loader = new FXMLLoader(getClass().getResource("Justtp.fxml"));
try {
Parent root = (Parent) loader.load();
}
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
TpController myController = loader.getController();
TextArea t = myController.getTextArea();
String data = "hi\nhello\nhow are you\nnice to meet you\nhahaha";
//System.out.println(t.setData("hi"));
myController.setTopText(data);
}
Instead of using setTopText, i have also directly used
t.setText(data);
But no use. My final output does nothing on the button click.