我有一个 BorderPane(与 MainController 关联),BorderPane 的 FXML 用于将<fx:include>
Label(带有控制器 StatusBarController)包含到 BorderPane 的底部区域。不幸的是,StatusBarController 没有注入 MainController 类实例,我不明白为什么。
main.fxml:包含状态栏的 BorderPane
<fx:root type="javafx.scene.layout.BorderPane" fx:id="borderPane" xmlns:fx="http://javafx.com/fxml" fx:controller="com.example.controllers.MainController">
<bottom>
<fx:include source="statusbar.fxml" />
</bottom>
</fx:root>
statusbar.fxml:标签及其关联的控制器
<Label fx:id="statusbar" text="A label simulating a status bar" xmlns:fx="http://javafx.com/fxml" fx:controller="com.example.controllers.StatusBarController" />
带有 StatusBarController 字段的 MainController:
public class MainController
{
@FXML
private StatusBarController statusbarController; // PROBLEM HERE: I would expect the StatusBarController to be injected but this does not happen!
// Implementing Initializable Interface no longer required on JavaFX 2.2 according to
// http://docs.oracle.com/javafx/2/fxml_get_started/whats_new2.htm
// (I also tested this, the initialize() method is being called)
@SuppressWarnings("unused") // only called by the FXMLLoader
@FXML // This method is called by the FXMLLoader when initialization is complete
private void initialize() {
// initialize your logic here: all @FXML variables will have been injected
assert borderPane != null : "fx:id=\"borderPane\" was not injected: check your FXML file 'main.fxml'.";
System.out.println("MainController initialize()");
//statusbarController.setStatusText("Hello from MainController"); // PROBLEM HERE: this fails because statusbarController is not injected as expected
}
}
以及应用程序的开始:
public void start(Stage primaryStage)
{
Parent root = null;
try {
root = FXMLLoader.load(getClass().getResource("/resources/main.fxml"));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
primaryStage.setTitle("Demo");
primaryStage.setScene(new Scene(root, 800, 600));
primaryStage.show();
}
我的示例的完整源代码位于http://codestefan.googlecode.com/svn/trunk/SubcontrollerAccess/
那么问题来了:为什么StatusBarController没有注入到MainController的statusbarController变量中呢?
感谢您的任何提示!