JavaFx嵌套控制器（FXML< include>） [英] JavaFx Nested Controllers (FXML <include>)

问题描述

在此计划中，是一个示例如何包含自定义组件并从容器的控制器使用其控制器。

In this tutotial, is an example of how to include custom components and use their controllers from the controller of the container.

main_window_content.fxml

main_window_content.fxml

<VBox fx:controller="com.foo.MainController">
   <fx:include fx:id="dialog" source="dialog.fxml"/>
   ...
</VBox>

MainController.java

MainController.java

public class MainController extends Controller {
    @FXML private Window dialog;
    @FXML private DialogController dialogController;

    ..

如果组件只包含一次， 。
如果两次包含相同的组件，则不会初始化控制器。
两个控制器都为null。

If the component is included only once, it works fine. If the same component is included twice, the controllers are not initialized. Both controllers are null.

main_window_content.fxml

main_window_content.fxml

    <VBox fx:controller="com.foo.MainController">
       <fx:include fx:id="dialog1" source="dialog.fxml"/>
       <fx:include fx:id="dialog2" source="dialog.fxml"/>
       ...
    </VBox>

MainController.java

MainController.java

    public class MainController extends Controller {
        @FXML private Window dialog1;
        @FXML private DialogController dialogController1;
        @FXML private Window dialog2;
        @FXML private DialogController dialogController2;

有人可以帮我解决问题吗？
感谢

Could someone help me to solve the problem? thanks

这是我的FXML加载代码。它在主应用程序方法中执行：

This is my FXML loading code. It is executed in main application method:

public void start(Stage stage) throws Exception { 
    Parent root = FXMLLoader.load(getClass().getResource("main_window_content.fxml"));
    stage.setTitle("FXML Welcome"); 
    stage.setScene(new Scene(root, 300, 275));
    stage.show(); 
}

推荐答案

感谢Daniel ）我发现我的代码中的错误，我的控制器变量的名称是错误的。他们应该< fx：id> Controller 。
换句话说，它应该是：

Thanks to Daniel (from OTN) I found the error in my code, the names of my controller variables were wrong. They should be <fx:id>Controller. In other words it should be:

MainController.java

public class MainController extends Controller {
@FXML private Window dialog1;
@FXML private DialogController dialog1Controller;
@FXML private Window dialog2;
@FXML private DialogController dialog2Controller;

但是研究版本2.2中引入的更改我发现一切都可以很容易地通过使用< fx：root> b（喜欢本教程）。
我在FXML中输入了我的组件，只是这样声明：

But studying the changes introduced in version 2.2 I found that everything can be easily solved by using <fx:root> tag (like this tutorial). I entered my component in FXML simply declaring it like this:

<HBox>
    <Dialog id="dialog1" text="Hello World!"/>
    <Dialog id="dialog2" text="Hello World!"/>
</HBox>

我希望有用

这篇关于JavaFx嵌套控制器（FXML< include>）的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！