How do I pick up the Enter Key being pressed in JavaFX2?

Question

I have a TextField to enter a search term, and a button for "Go". But in JavaFX2, how would I make it so pressing the Enter Key in the TextField would perform an action?

Thanks :)

Answer 1

I'm assuming you want this to happen when the user presses enter only while the TextField has focus. You'll want use KeyEvent out of javafx.scene.input package and do something like this:

field.setOnKeyPressed(new EventHandler<KeyEvent>() {     @Override     public void handle(KeyEvent ke) {         if (ke.getCode().equals(KeyCode.ENTER)) {             doSomething();         }     } }); 

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Using lambda:

field.setOnKeyPressed( event -> {   if( event.getCode() == KeyCode.ENTER ) {     doSomething();   } } ); 

Answer 2

You can use the onAction attribute of the TextField and bind it to a method in your controller.

@FXML public void onEnter(ActionEvent ae){    System.out.println("test") ; } 

And in your FXML file:

<TextField fx:id="textfield" layoutX="29.0" layoutY="298.0" onAction="#onEnter" prefWidth="121.0" />