JAVAFX - FXML - 从父控制器访问加载的FXML控件 [英] JAVAFX - FXML - Access Loaded FXML Controls from Parent Controller

问题描述

以下是我要完成的工作。

Here is what I am trying to accomplish.

/Package A/
/Package A/ApplicationController.java
/Package A/Application.fxml

在我的Application.fxml文件中，我有一个按钮，当单击该按钮时，它会加载以下MyGrid.fxml文件。

In my Application.fxml file I have a button, and when that button is clicked it loads the following "MyGrid.fxml" file.

/Package B/
/Package B/MyGrid.fxml (has a label #mygridlabelid

我使用的代码是：

ContentPane.getChildren().add((Node)FXMLLoader.load(getClass().getResource("/Package B/MyGrid.fxml")));

但问题是..即使我正在加载MyGrid来自ApplicationController的.fxml文件，我无法从ApplicationController文件访问#mygridlabelid。我在ApplicationController.java文件中定义了@FXML标签mygridlabelid，但它没有实例化：（

But the problem is.. even though I am loading the MyGrid.fxml file from the ApplicationController, I cannot access #mygridlabelid from the ApplicationController file. I defined @FXML label mygridlabelid in the ApplicationController.java file, but it doesn't get instantiated :(

我该怎么办呢？周围有什么技巧或黑客？

How can I do that? Any tricks or hacks around it?

解决方案

我设法通过执行以下操作来解决问题...并确保.fxml文件没有fx：controller set。否则你将遇到已指定控制器值。

I managed to solve the problem by doing the following... and make sure that the .fxml file does not have fx:controller set. Or else you will run into "Controller value already specified."

    FXMLLoader loader = new FXMLLoader(getClass().getResource("/your.fxml"));
    loader.setController(this);
    try {
        ContentPane.getChildren().add((Node)loader.load());
    } catch (IOException e){
        System.out.println(e.getMessage());
    }

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