Example
Button API provides an easy way to assign common keyboard shortcuts to buttons without the need to access accelerators' list assigned to Scene or explicitly listening to the key events. Namely, two convenience methods are provided: setDefaultButton and setCancelButton:
-
Setting
setDefaultButtontotruewill cause theButtonto fire every time it receives aKeyCode.ENTERevent. -
Setting
setCancelButtontotruewill cause theButtonto fire every time it receives aKeyCode.ESCAPEevent.
The following example creates a Scene with two buttons that are fired when enter or escape keys are pressed, regardless whether they are focused or not.
FlowPane root = new FlowPane();
Button okButton = new Button("OK");
okButton.setDefaultButton(true);
okButton.setOnAction(e -> {
System.out.println("OK clicked.");
});
Button cancelButton = new Button("Cancel");
cancelButton.setCancelButton(true);
cancelButton.setOnAction(e -> {
System.out.println("Cancel clicked.");
});
root.getChildren().addAll(okButton, cancelButton);
Scene scene = new Scene(root);
The code above will not work if these KeyEvents are consumed by any parent Node:
scene.setOnKeyPressed(e -> {
e.consume();
});
