我希望将Stage设置为“ UNECORATED”,使其可拖动和最小化.问题是我找不到方法,因为我遇到的示例都是通过插入main方法内部的方法来完成此操作的.

我想通过在控制器类中声明的方法来完成此操作,例如我如何使用下面的“ WindowClose()”方法.

如果这似乎不是一个常识性问题,这是我第二天与JavaFX合作.谢谢大家.

// Main Class/ Method

import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
import javafx.stage.StageStyle;

public class Fxmltableview extends Application {

    public static String pageSource = "fxml_tableview.fxml";
    public static Scene scene;

    @Override
    public void start(Stage stage) throws Exception {
        stage.initStyle(StageStyle.UNDECORATED);
        stage.initStyle(StageStyle.TRANSPARENT);

        Parent root = FXMLLoader.load(getClass().getResource(pageSource));

        scene = new Scene(root, Color.TRANSPARENT);

        stage.setScene(scene);
        stage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}

..

// The Controller

import javafx.application.Platform;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.scene.control.TableView;
import javafx.scene.control.TextField;

public class FXMLTableViewController {
    @FXML private TableView<Person> tableView;
    @FXML private TextField firstNameField;
    @FXML private TextField lastNameField;
    @FXML private TextField emailField;

    @FXML
    protected void addPerson (ActionEvent event) {
        ObservableList<Person> data = tableView.getItems();
        data.add(new Person(
                firstNameField.getText(),
                lastNameField.getText(),
                emailField.getText()
                ));

        firstNameField.setText("");
        lastNameField.setText("");
        emailField.setText("");   
    }

    public void WindowClose (ActionEvent event) {
            Platform.exit();
    }
}

解决方法:

战略

您已经在start方法中引用了该阶段.

您需要的是能够将舞台传递到控制器,以便控制器可以使舞台可被给定节点拖动.

>“直接从调用者向控制器传递参数”方法可用于将阶段引用传递给控制器​​：Passing Parameters JavaFX FXML.
>使用makeDraggable method from this sample code允许舞台被给定节点拖动.

样例实施

应用程序启动方法的一些伪代码如下：

stage.initStyle(StageStyle.UNDECORATED);
stage.initStyle(StageStyle.TRANSPARENT);

FXMLLoader loader = new FXMLLoader(
  getClass().getResource(
    "fxml_tableview.fxml"
  )
);

stage.setScene(
  new Scene(
    (Parent) loader.load()
  )
);

FXMLTableViewController controller = 
  loader.<FXMLTableViewController>getController();
controller.registerStage(stage);

stage.show();

对于控制器的新registerStage方法：

@FXML private Rectangle dragNode;

public void registerStage(Stage stage) {
  EffectUtilities.makeDraggable(stage, dragNode)
}

EffectUtilities.makeDraggable()来自我之前链接的示例代码.

更新您的fxml_tableview.fxml文件,以包括控制器中引用的必需的新dragNode.

替代实施

在控制器的initialize方法中,在dragNode的sceneProperty和更改的场景的window属性上添加一个更改侦听器,以获取有关阶段更改的通知,以便您可以调用makeDraggable.

示例代码EffectUtilities.makeDraggable(stage,byNode)

import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Cursor;
import javafx.scene.Node;
import javafx.scene.input.MouseEvent;
import javafx.stage.Stage;
import javafx.util.Duration;

/** Various utilities for applying different effects to nodes. */
public class EffectUtilities {
  /** makes a stage draggable using a given node */
  public static void makeDraggable(final Stage stage, final Node byNode) {
    final Delta dragDelta = new Delta();
    byNode.setOnMousePressed(new EventHandler<MouseEvent>() {
      @Override public void handle(MouseEvent mouseEvent) {
        // record a delta distance for the drag and drop operation.
        dragDelta.x = stage.getX() - mouseEvent.getScreenX();
        dragDelta.y = stage.getY() - mouseEvent.getScreenY();
        byNode.setCursor(Cursor.MOVE);
      }
    });
    byNode.setOnMouseReleased(new EventHandler<MouseEvent>() {
      @Override public void handle(MouseEvent mouseEvent) {
        byNode.setCursor(Cursor.HAND);
      }
    });
    byNode.setOnMouseDragged(new EventHandler<MouseEvent>() {
      @Override public void handle(MouseEvent mouseEvent) {
        stage.setX(mouseEvent.getScreenX() + dragDelta.x);
        stage.setY(mouseEvent.getScreenY() + dragDelta.y);
      }
    });
    byNode.setOnMouseEntered(new EventHandler<MouseEvent>() {
      @Override public void handle(MouseEvent mouseEvent) {
        if (!mouseEvent.isPrimaryButtonDown()) {
          byNode.setCursor(Cursor.HAND);
        }
      }
    });
    byNode.setOnMouseExited(new EventHandler<MouseEvent>() {
      @Override public void handle(MouseEvent mouseEvent) {
        if (!mouseEvent.isPrimaryButtonDown()) {
          byNode.setCursor(Cursor.DEFAULT);
        }
      }
    });
  }

  /** records relative x and y co-ordinates. */
  private static class Delta {
    double x, y;
  }
}