javafx FXML and Controllers Passing data to FXML - Specifying the controller instance
Example
Problem: Some data needs to be passed to a scene loaded from a fxml.
Solution
Set the controller using the FXMLLoader instance used later to load the fxml.
Make sure the controller contains the relevant data before loading the fxml.
Note: in this case the fxml file must not contain the fx:controller attribute.
FXML
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.text.*?>
<?import javafx.scene.layout.*?>
<VBox xmlns:fx="http://javafx.com/fxml/1">
<children>
<Text fx:id="target" />
</children>
</VBox>
Controller
import javafx.fxml.FXML;
import javafx.scene.text.Text;
public class TestController {
private final String data;
public TestController(String data) {
this.data = data;
}
@FXML
private Text target;
public void initialize() {
// handle data once the fields are injected
target.setText(data);
}
}
Code used for loading the fxml
String data = "Hello World!";
FXMLLoader loader = new FXMLLoader(getClass().getResource("test.fxml"));
TestController controller = new TestController(data);
loader.setController(controller);
Parent root = loader.load();
