How to get selected radio button from ToggleGroup

Question

I an working on JavaFX 8 and SceneBuilder. I created some radio buttons in the FXML File and specified a toggleGroup name to a radio button list in

Answer 1

This was never properly or thoroughly answered, so I thought I would post the solution I got.

When you create radio buttons in SceneBuilder, then ALSO use SceneBuilder to assign them to a group. The way you access that group via the Controller is to first create a variable of type ToggleGroup in the Controller and name it the exact same name as the one you created in SceneBuilder. Then you can use it. Here is a pseudocode example of how I did it:

// your imports
public class Controller
{
    @FXML ToggleGroup   myGroup; //I called it myGroup in SceneBuilder as well.

    public void myGroupAction(ActionEvent action)
    {
      System.out.println("Toggled: " + myGroup.getSelectedToggle().getUserData().toString());
    }

    public void initialize()
    {
      //whatever initialize code you have here
    }
}

Although the text returned from the getUserData property is lengthy. Here is a way to get just the name of the Radio Button:

myGroup.selectedToggleProperty().addListener(new ChangeListener()
    {
    @Override
    public void changed(ObservableValue ov, Toggle t, Toggle t1)
        {
        RadioButton chk = (RadioButton)t1.getToggleGroup().getSelectedToggle(); // Cast object to radio button
        System.out.println("Selected Radio Button - "+chk.getText());
        }
    });

Hope this helps someone down the road ...