Display a confirmation dialogue when the user try to exit the application (Press X button)

Question

I want to modify the default exit procedure in my javafx application to display a confirmation dialogue to the user. The confirmation dialogue will exit the application if the user chooses OK and will keep the application running when user chooses Cancel.

What should I do to make this in javaFX?

I tried overriding the stop() method in the main class but it still closes the application even before the confirmation Prompt is displayed — , Dec 20 '16 at 02:16
I found the best answer is in this thread: http://stackoverflow.com/questions/13727314/prevent-or-cancel-exit-javafx-2 — R. Salame, Dec 20 '16 at 02:21

score 2 · Answer 1 · answered Dec 20 '16 at 04:08

2

You can use Alert since 8.40

stage.setOnCloseRequest(evt -> {
    Alert alert = new Alert(AlertType.CONFIRMATION);
    alert.setTitle("Confirm Close");
    alert.setHeaderText("Close program?");
    alert.showAndWait().filter(r -> r != ButtonType.OK).ifPresent(r->evt.consume());
});

answered Dec 20 '16 at 04:08

brian

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4
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I would have shown an example using an alert however, I have had experiences with it glitching before and chose the safer option. – Politic Revolutionnaire Dec 20 '16 at 11:15

Politic Revolutionnaire · Accepted Answer · 2016-12-20T02:31:40.160

1

primaryStage.addEventFilter(WindowEvent.WINDOW_CLOSE_REQUEST, e->{
    e.consume();
    Popup popup = new Popup();
    HBox buttons = new HBox();
    Button close = new Button("close");
    Button cancel = new Button("cancel");
    buttons.getChildren().addAll(close,cancel);
    buttons.setPadding(new Insets(5,5,5,5));
    popup.getContent().add(buttons);
    popup.show(primaryStage);
    close.setOnAction(ex -> {
        Platform.exit();
    });
    cancel.setOnAction(ec -> {
        popup.hide();
    });
});

edited Dec 20 '16 at 02:31

answered Dec 20 '16 at 02:22

Politic Revolutionnaire

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10
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it worked after the edit you made. thank you very much. – Dec 20 '16 at 02:34
No problem. Adapted the code from another program that had a similar feature, but was not in my style so almost forgot to put the edit. Glad I could help! – Politic Revolutionnaire Dec 20 '16 at 03:30

Display a confirmation dialogue when the user try to exit the application (Press X button)

2 Answers2