问题描述
当最初从FXML加载Scene时,如何在Java代码中为Scene添加一个新节点?我已经从FXML加载,如下所示
How can I add a new node to the Scene in java code when Scene is initially loaded from FXML ?I have loaded from FXML as shown below
Parent root = FXMLLoader.load(getClass().getResource("sample.fxml"));
Scene scene = new Scene(root, 1000, 600, Color.DODGERBLUE);
例如,现在说如何在Java代码中向场景添加按钮?
Now say for example how do I add button to the scene in Java code?
推荐答案
我不知道您的问题背后的原因.如果要在应用程序或场景初始化期间动态插入一些节点,建议您使用 initialize
方法在您的控制器上.
I do not know the reason behind your question. If what you want is to insert some nodes dynamically during the application or scene initialization, I suggest you use a initialize
method at your controller.
此方法必须用@FXML
注释并具有以下签名:
This method must be annotated with @FXML
and have the following signature:
void initialize()
然后,您可以将必须在其上插入按钮的容器注入到控制器中,然后将按钮添加到其中:
Then, you can inject the container where the button must be inserted on the controller and add the button to it:
@FXML
HBox buttonBox // assuming your button container is a HBox
...
@FXML
protected void initialize() {
buttonBox.getChildren().add(new Button("Click me!"));
}
在构建FXML文件定义的组件之后,将调用方法initialize
.
The method initialize
is called after the components defined at the FXML file were built.
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