java 如何在 Pane 中加载 fxml 文件？
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How to load fxml file inside Pane?
提问by Hussein Saied
If we have a Stagethen Sceneincludes 2 Panes
the 1st Panecontains Buttonand the 2nd Paneis empty
could we load other fxml file inside this 2nd Pane?
如果我们有一个StagethenScene包含 2 Panes，第一个Pane包含Button而第二个Pane为空，我们可以在第二个中加载其他 fxml 文件Pane吗？
fxml1: VBox
|_Pane1-->Button
|_Pane2
///////////////
fxml2: Pane--> Welcome to fxml 2
"when we click the button load the fxml2 inside Pane2 of fxml1"
Then after click
然后点击后
====I finally found this works after trying !====Thank you guys
====我终于在尝试后找到了这个！====谢谢你们
@FXML Pane secPane;
public void loadFxml (ActionEvent event) {
Pane newLoadedPane = FXMLLoader.load(getClass().getResource("/application/fxml2.fxml"));
secPane.getChildren().add(newLoadedPane);
}
回答by Hussein Saied
I finally found this works after trying !
经过尝试，我终于找到了这个作品！
@FXML Pane secPane;
public void loadFxml (ActionEvent event) {
Pane newLoadedPane = FXMLLoader.load(getClass().getResource("/application/fxml2.fxml"));
secPane.getChildren().add(newLoadedPane);
}
回答by fabian
Just replacing the field in your controller class won't change the scene graph.
仅替换控制器类中的字段不会更改场景图。
secPaneis just a reference to a node in the scene graph.
secPane只是对场景图中节点的引用。
If secPaneis just a placeholder, you could replace it in the parent's child list:
如果secPane只是一个占位符，您可以在父级的子级列表中替换它：
public void loadFxml (ActionEvent event) {
// load new pane
Pane newPane = FXMLLoader.load(getClass().getResource("/application/Login2.fxml"));
// get children of parent of secPane (the VBox)
List<Node> parentChildren = ((Pane)secPane.getParent()).getChildren();
// replace the child that contained the old secPane
parentChildren.set(parentChildren.indexOf(secPane), newPane);
// store the new pane in the secPane field to allow replacing it the same way later
secPane = newPane;
}
This assumes of course, that getClass().getResource("/application/Login2.fxml")yields the correct resource and does not return null(which happens if no resource with the given name is available)
当然，这假设getClass().getResource("/application/Login2.fxml")产生正确的资源并且不会返回null（如果没有具有给定名称的资源可用，则会发生这种情况）
回答by Madushan Perera
You can implement something like this :
你可以实现这样的东西：
public void start(Stage primaryStage) throws IOException {
primaryStage.setTitle("Title");
primaryStage.setScene(createScene(loadMainPane("path_of_your_fxml")));
primaryStage.show();
}
private Pane loadMainPane(String path) throws IOException {
FXMLLoader loader = new FXMLLoader();
Pane mainPane = (Pane) loader.load(
getClass().getResourceAsStream(path));
return mainPane;
}
private Scene createScene(Pane mainPane) {
Scene scene = new Scene(mainPane);
return scene;
}
Then you can create a separate class call Navigationto store all your fxml paths:
然后你可以创建一个单独的类调用Navigation来存储你所有的 fxml 路径：
public class Navigator {
private final String P1;
private final String P2;
//then you can implement getters...
public String getP1() {
return P1;
}
public String getP2() {
return p2;
}
private static FxmlController Controller;
public static void loadPane(String fxml) {
try {
FxmlController.setPane(
(Node) FXMLLoader.load(Navigator.class.getResource(fxml)));
} catch (IOException e) {
e.printStackTrace();
}
}
public Navigator() throws IOException {
this.P1 = "p1.fxml";
this.P2 = "p2.fxml";}
Then you can load your pane in your button like below:
然后你可以在你的按钮中加载你的窗格，如下所示：
@FXML
private void btnAction(ActionEvent event) throws IOException {
Navigator.load(new Navigator().getP1());
..
.
.
