我有登录阶段(300 x 250),如果凭据正确,我想打开另一个主舞台(全屏)。
我已经弄清楚如何检查登录凭据,但是如何关闭登录阶段并打开另一个阶段?
答案 0 :(得分:0)
如果我的应用程序应该在一个窗口中工作,我更喜欢使用GUI管理器单例类来管理更改窗口。下面我提供了使用这种机制的简单应用程序的完整代码。我们假设所有文件都在一个包中,称为sample
。
Main.java - 您在此处初始化JavaFX组件:
package sample;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
import java.io.IOException;
public class Main extends Application {
@Override
public void start(Stage primaryStage) throws Exception {
FXMLLoader loader = new FXMLLoader();
loader.setLocation(Main.class.getResource("/sample/root.fxml"));
try{
StackPane rootPane;
rootPane = loader.load();
GuiManager guiModel = GuiManager.getInstance();
guiModel.setRootPane(rootPane);
Scene scene = new Scene(rootPane);
primaryStage.setScene(scene);
primaryStage.show();
guiModel.changeWindow("/sample/firstwindow.fxml");
} catch (IOException exception) {
exception.printStackTrace();
}
}
public static void main(String[] args) {
launch(args);
}
}
root.fxml - 所有的窗口都应该基于它:
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.layout.StackPane?>
<StackPane fx:id="rootPane"
xmlns="http://javafx.com/javafx/8.0.60"
xmlns:fx="http://javafx.com/fxml/1"
prefWidth="1" prefHeight="1"/>
firstwindow.fxml - 将显示的第一个实际窗口:
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.layout.VBox?>
<VBox xmlns:fx="http://javafx.com/fxml" fx:controller="sample.FirstWindowController">
<Label text="First window"/>
<Button text="Change window" onAction="#changeWindow"/>
</VBox>
FirstWindowController.java - 第一个窗口的控制器类:
package sample;
import javafx.fxml.FXML;
public class FirstWindowController {
@FXML
private void changeWindow() {
GuiManager.getInstance().changeWindow("/sample/secondwindow.fxml");
}
}
secondwindow.fxml - 点击第一个窗口的按钮后显示:
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.layout.VBox?>
<VBox xmlns:fx="http://javafx.com/fxml" fx:controller="sample.SecondWindowController" >
<Label text="Second window"/>
<Button text="Change window" onAction="#changeWindow"/>
</VBox>
SecondWindowController.java - 第二个窗口的控制器类:
package sample;
import javafx.fxml.FXML;
public class SecondWindowController {
@FXML
private void changeWindow() {
GuiManager.getInstance().changeWindow("/sample/firstwindow.fxml");
}
}
GuiManager.java - 一个根据root用户管理更改窗口的类:
package sample;
import javafx.collections.ObservableList;
import javafx.fxml.FXMLLoader;
import javafx.scene.Node;
import javafx.scene.layout.Pane;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
import javafx.stage.Window;
import java.io.IOException;
public class GuiManager {
private StackPane rootPane;
private static GuiManager instance;
public static GuiManager getInstance() {
if (instance == null) {
instance = new GuiManager();
}
return instance;
}
private GuiManager() {}
public void changeWindow(String path) {
changeWindow(rootPane, path, this);
rootPane.setPrefWidth(-1);
rootPane.setPrefHeight(-1);
}
public static void changeWindow(Pane pane, String newWindowPath, Object callingController) {
Window window = pane.getScene().getWindow();
double x = window.getX() + getHorizontalMidpoint(window);
double y = window.getY() + getVerticalMidpoint(window);
ObservableList<Node> childrenList = pane.getChildren();
removeAllIncludedChildren(childrenList);
FXMLLoader loader = new FXMLLoader(callingController.getClass().getResource(newWindowPath));
try {
pane.getChildren().add(loader.load());
Stage primaryStage = (Stage) window;
primaryStage.setMinHeight(0);
primaryStage.setMinWidth(0);
window.sizeToScene();
window.setX(x - getHorizontalMidpoint(window));
window.setY(y - getVerticalMidpoint(window));
primaryStage.setMinHeight(window.getHeight());
primaryStage.setMinWidth(window.getWidth());
} catch (IOException exception) {
exception.printStackTrace();
}
}
private static double getHorizontalMidpoint(Window window) {
int horizontalBisectionCoefficient = 2;
return window.getWidth() / horizontalBisectionCoefficient;
}
private static double getVerticalMidpoint(Window window) {
int verticalBisectionCoefficient = 2;
return window.getHeight() / verticalBisectionCoefficient;
}
private static void removeAllIncludedChildren(ObservableList<Node> childrenList) {
for (int childIndex = 0; childIndex < childrenList.size(); childIndex++) {
childrenList.remove(childIndex);
}
}
public void setRootPane(StackPane rootPane) {
this.rootPane = rootPane;
}
}