我在选择menuItem时关闭当前场景并打开另一个场景时遇到问题.我的主要阶段编码如下：
public void start(Stage primaryStage) throws Exception {
primaryStage.setTitle("Shop Management");
Pane myPane = (Pane)FXMLLoader.load(getClass().getResource
("createProduct.fxml"));
Scene myScene = new Scene(myPane);
primaryStage.setScene(myScene);
primaryStage.show();
}
然后在createProduct.fxml中,当menuItem是onclick时,它将执行以下操作：
public void gotoCreateCategory(ActionEvent event) throws IOException {
Stage stage = new Stage();
stage.setTitle("Shop Management");
Pane myPane = null;
myPane = FXMLLoader.load(getClass().getResource("createCategory.fxml"));
Scene scene = new Scene(myPane);
stage.setScene(scene);
stage.show();
}
它确实打开了createCategory.fxml.但是,以前的createProduct.fxml面板不会关闭.我知道有一个叫做stage.close()的东西要做这个,但我不知道在哪里实现它,因为我没有从一开始就从主右侧传递场景.我想知道我应该怎么解决这个问题.
提前致谢.
解决方法
您必须在start方法中进行一些更改,例如..
public void start(Stage primaryStage) throws Exception {
primaryStage.setTitle("Shop Management");
FXMLLoader myLoader = new FXMLLoader(getClass().getResource("createProduct.fxml"));
Pane myPane = (Pane)myLoader.load();
CreateProductController controller = (CreateProductController) myLoader.getController();
controller.setPrevStage(primaryStage);
Scene myScene = new Scene(myPane);
primaryStage.setScene(myScene);
primaryStage.show();
}
你的CreateProductController.java将是,
public class CreateProductController implements Initializable {
Stage prevStage;
public void setPrevStage(Stage stage){
this.prevStage = stage;
}
@Override
public void initialize(URL location,ResourceBundle resources) {
}
public void gotoCreateCategory(ActionEvent event) throws IOException {
Stage stage = new Stage();
stage.setTitle("Shop Management");
Pane myPane = null;
myPane = FXMLLoader.load(getClass().getResource("createCategory.fxml"));
Scene scene = new Scene(myPane);
stage.setScene(scene);
prevStage.close();
stage.show();
}
}
