我一直试图让我的应用程序在场景之间切换。这是部分代码的副本。信用场景只有一个后退按钮,应该返回到主场景。
当我尝试点击主场景上的点数按钮时,它变成白色的白色屏幕。我相信有一个更好的方法来解决这个问题,你能给我一些建议吗?
public class Application {
public static void main(String[] args) {
javafx.application.Application.launch(GUI.class);
}
}
public class GUI extends Application {
@Override
public void start(Stage primaryStage) {
Scene mainScene, creditsScene = null;
mainScene = getMainScene(primaryStage, creditsScene);
creditsScene = getCreditsScene(primaryStage, mainScene);
primaryStage.setTitle("Test application");
primaryStage.setScene(mainScene);
primaryStage.show();
}
private Scene getMainScene(Stage primaryStage, Scene creditsScene) {
final Button credits = new Button("Credits");
credits.setOnAction((ActionEvent e) -> {
primaryStage.close();
primaryStage.setScene(creditsScene);
primaryStage.show();
});
VBox x = new VBox(50);
x.setAlignment(Pos.CENTER);
x.getChildren().addAll( run, displayInfo,
label1, displayInfo, textField, submitName, credits, exit);
//scene size
Scene scene = new Scene(x, 650, 900);
return scene;
}
private Scene getCreditsScene(Stage primaryStage, Scene main) {
final Button back = new Button("Back");
back.setOnAction((ActionEvent e) -> {
primaryStage.setScene(main);
});
VBox x = new VBox(50);
x.getChildren().addAll(back);
Scene credits = new Scene(x, 650, 900);
return credits;
}
答案 0 :(得分:1)
尝试切换字符串的顺序:
mainScene = getMainScene(primaryStage, creditsScene);
creditsScene = getCreditsScene(primaryStage, mainScene);
这里传递给getMainScene null
。