Question

我需要创建许多不同的FXML文件，并且每个文件都具有一致的布局。每个都有一个AnchorPane，它将保持单独的内容。

有没有办法加载＆＃39;基地＆＃39; FXML文件，然后加载第二个FXML文件，并将该数据路由到第一个？

例如，FXML＃1有一个BorderPane。 FXML＃2有一个按钮，texfield，标签等。如何加载＃1，然后加载＃2作为＃1的孩子？

Answer 1

您可以使用<fx:root>元素来添加现有元素。

您需要一种方法来获取应该用作根元素的节点的引用，并在加载第二个fxml时将其传递给FXMLLoader。你可以，例如使用命名空间使用fx:id属性获取该元素：

@Override
public void start(Stage primaryStage) throws IOException {
    FXMLLoader outerLoader = new FXMLLoader(getClass().getResource("outer.fxml"));

    Scene scene = new Scene(outerLoader.load());

    URL inner = getClass().getResource("inner1.fxml");
    // URL inner = getClass().getResource("inner2.fxml");

    FXMLLoader innerLoader = new FXMLLoader(inner);

    // get insertion point from outer fxml
    innerLoader.setRoot(outerLoader.getNamespace().get("insertionPoint"));

    innerLoader.load();

    primaryStage.setScene(scene);
    primaryStage.show();
}

outer.fxml

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.layout.*?>

<AnchorPane prefHeight="400.0" prefWidth="600.0" xmlns:fx="http://javafx.com/fxml/1">
    <children>
        <BorderPane AnchorPane.topAnchor="10"  fx:id="insertionPoint"/>
    </children>
</AnchorPane>

inner1.fxml

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>

<fx:root type="javafx.scene.layout.BorderPane" xmlns:fx="http://javafx.com/fxml/1">
    <center>
        <Label text="Hello from inner 1."/>
    </center>
</fx:root>

inner2.fxml

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>

<fx:root type="javafx.scene.layout.BorderPane" xmlns:fx="http://javafx.com/fxml/1">
    <center>
        <Label text="Greetings from inner 2."/>
    </center>
</fx:root>

Answer 2

或者您实际上可以包括这样的模板文件

Traceback (most recent call last):
  File "/Users/edamame/my_project/extract_appointments.py", line 16, in <module>
    db_cfg = yaml.safe_load(infile)
  File "/Users/edamame/my_project/venv/lib/python3.6/site-packages/yaml/__init__.py", line 94, in safe_load
    return load(stream, SafeLoader)
  File "/Users/edamame/my_project/venv/lib/python3.6/site-packages/yaml/__init__.py", line 72, in load
    return loader.get_single_data()
  File "/Users/edamame/my_project/venv/lib/python3.6/site-packages/yaml/constructor.py", line 35, in get_single_data
    node = self.get_single_node()
  File "/Users/edamame/my_project/venv/lib/python3.6/site-packages/yaml/composer.py", line 36, in get_single_node
    document = self.compose_document()
  File "/Users/edamame/my_project/venv/lib/python3.6/site-packages/yaml/composer.py", line 55, in compose_document
    node = self.compose_node(None, None)
  File "/Users/edamame/my_project/venv/lib/python3.6/site-packages/yaml/composer.py", line 84, in compose_node
    node = self.compose_mapping_node(anchor)
  File "/Users/edamame/my_project/venv/lib/python3.6/site-packages/yaml/composer.py", line 127, in compose_mapping_node
    while not self.check_event(MappingEndEvent):
  File "/Users/edamame/my_project/venv/lib/python3.6/site-packages/yaml/parser.py", line 98, in check_event
    self.current_event = self.state()
  File "/Users/edamame/my_project/venv/lib/python3.6/site-packages/yaml/parser.py", line 428, in parse_block_mapping_key
    if self.check_token(KeyToken):
  File "/Users/edamame/my_project/venv/lib/python3.6/site-packages/yaml/scanner.py", line 116, in check_token
    self.fetch_more_tokens()
  File "/Users/edamame/my_project/venv/lib/python3.6/site-packages/yaml/scanner.py", line 220, in fetch_more_tokens
    return self.fetch_value()
  File "/Users/edamame/my_project/venv/lib/python3.6/site-packages/yaml/scanner.py", line 576, in fetch_value
    self.get_mark())
yaml.scanner.ScannerError: mapping values are not allowed here
  in "/Users/edamame/my_logins/my_config.yaml", line 5, column 9

JavaFx将其他FXML加载到FXML＆＃39;模板＆＃39;

2 个答案:

outer.fxml

inner1.fxml

inner2.fxml