Question

JavaFX如何实现模态窗口

Answer 1

JavaSE中，使用JOptionPane.show***window可以生产模态的对话框窗口，即用户必须点击对话框的按钮后，才能返回主窗口继续操作，否则无法进行其他操作。但是JavaFX 中没有提供类似JOptionPane的静态类来生成弹出的对话框窗口

下面是一个实现dialog box：

Answer 2

下面是一个实现dialog box
import javafx.stage.*; import javafx.scene.*;import javafx.scene.paint.Color;import javafx.scene.control.*;import javafx.event.ActionEvent;import javafx.event.EventHandler;public class ModalDialog {
Button btn;public ModalDialog(final Stage stg) {
btn = new Button();final Stage stage = new Stage();//Initialize the Stage with type of modalstage.initModality(Modality.APPLICATION_MODAL);//Set the owner of the Stage stage.initOwner(stg);
stage.setTitle("Top Stage With Modality");
Group root = new Group();
Scene scene = new Scene(root, 300, 250, Color.LIGHTGREEN);

btn.setOnAction(new EventHandler<ActionEvent>() {public void handle(ActionEvent event) {
stage.hide();

}
});

btn.setLayoutX(100);
btn.setLayoutY(80);
btn.setText("OK");

root.getChildren().add(btn);
stage.setScene(scene);
stage.show();

}

}import javafx.application.Application;import javafx.event.ActionEvent;import javafx.event.EventHandler;import javafx.scene.Group;import javafx.scene.Scene;import javafx.scene.control.Button;import javafx.scene.paint.Color;import javafx.stage.Stage;public class ModalTest extends Application {/**
* @param args the command line arguments
*/public static void main(String[] args) {
Application.launch(ModalTest.class, args);
}

@Overridepublic void start(final Stage primaryStage) {
primaryStage.setTitle("Hello World");
Group root = new Group();
Scene scene = new Scene(root, 500, 450, Color.LIGHTBLUE);
Button btn = new Button();
btn.setLayoutX(250);
btn.setLayoutY(240);
btn.setText("Show modal dialog");
btn.setOnAction(new EventHandler<ActionEvent>() {public void handle(ActionEvent event) {
ModalDialog md = new ModalDialog(primaryStage);

}
});
root.getChildren().add(btn);
primaryStage.setScene(scene);
primaryStage.show();
}
}

Answer 3

private void clickShow(ActionEvent event) {
    <a href="https://www.baidu.com/s?wd=Stage&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1YLPHIbmWD4nWbdujD3rAfY0ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPH63PH6vrHc1" target="_blank" class="baidu-highlight">Stage</a> <a href="https://www.baidu.com/s?wd=stage&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1YLPHIbmWD4nWbdujD3rAfY0ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPH63PH6vrHc1" target="_blank" class="baidu-highlight">stage</a> = new <a href="https://www.baidu.com/s?wd=Stage&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1YLPHIbmWD4nWbdujD3rAfY0ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EPH63PH6vrHc1" target="_blank"class="baidu-highlight">Stage</a>();
    Parent root = FXMLLoader.load(
        YourClassController.class.getResource("YourClass.fxml"));
    stage.setScene(new Scene(root));
    stage.setTitle("My modal window");
    stage.initModality(Modality.WINDOW_MODAL);
    stage.initOwner(
        ((Node)event.getSource()).getScene().getWindow() );
    stage.show();
}

Answer 4

JavaSE中，使用JOptionPane.show***window可以生产模态的对话框窗口，即用户必须点击对话框的按钮后，才能返回主窗口继续操作，否则无法进行其他操作。