我想將我的 FXML 分成更小的文件，每個文件都有自己的控制器。在 main 中，我為每個控制器創建實例并訪問textAreaSample并嘗試附加文本。我沒有看到文字正在改變。為什么？Alert正在顯示來自此的文本TextArea：alert.setContentText(textAreaSample.getText());我不知道如何設置所有 fxml 文件和控制器。我應該如何設置這一切？這是我的主要“sample.fxml”文件：<GridPane fx:controller="sample.ControllerSample" xmlns:fx="http://javafx.com/fxml" alignment="center" hgap="10" vgap="10"> <fx:include fx:id="sending" source="Sending.fxml" GridPane.columnIndex="0" GridPane.rowIndex="0"/> <TextArea fx:id="textAreaSample" prefWidth="200" prefHeight="200" GridPane.columnIndex="1" GridPane.rowIndex="0" text="Sample"> </TextArea></GridPane>及其控制器：public class ControllerSample { @FXML private TextArea textAreaSample; public ControllerSample() {} public TextArea getTextAreaSample() { return textAreaSample; } public void setTextAreaSample(TextArea textAreaSample) { this.textAreaSample = textAreaSample; }}現在我有Sending.fxml文件：<GridPane fx:controller="sample.ControllerSending" xmlns:fx="http://javafx.com/fxml" alignment="center" hgap="10" vgap="10"> <fx:include fx:id="sendingPhotos" source="SendingPhotos.fxml" GridPane.columnIndex="0" GridPane.rowIndex="0"/></GridPane>及其控制器：public class ControllerSending { public ControllerSending() {}}這是SendingPhotos.fxml代碼：<TextArea xmlns="http://javafx.com/javafx" xmlns:fx="http://javafx.com/fxml" fx:controller="sample.ControllerSendingPhotos" fx:id="textAreaSendingPhotos" prefWidth="200" prefHeight="200" text="Photos"/>和控制器：public class ControllerSendingPhotos { @FXML private TextArea textAreaSendingPhotos; public ControllerSendingPhotos() {} public TextArea getTextAreaSendingPhotos() { return textAreaSendingPhotos; } public void setTextAreaSendingPhotos(TextArea textAreaSendingPhotos) { this.textAreaSendingPhotos = textAreaSendingPhotos; }}
1 回答
慕田峪9158850
TA貢獻1794條經驗 獲得超7個贊
要訪問textArea嵌套的 fxml，您必須更改控制器：
public class ControllerSample {
@FXML
private TextArea textAreaSample;
@FXML
private ControllerSending sendingController;
public ControllerSample() {
}
public TextArea getTextAreaSample() {
return textAreaSample;
}
public void setTextAreaSample(TextArea textAreaSample) {
this.textAreaSample = textAreaSample;
}
protected ControllerSending getSendingController() {
return sendingController;
}
}
public class ControllerSending {
@FXML
private ControllerSendingPhotos sendingPhotosController;
public ControllerSending() {
}
protected ControllerSendingPhotos getSendingPhotosController() {
return sendingPhotosController;
}
}
public class Main extends Application {
@Override
public void start(Stage primaryStage) throws Exception {
FXMLLoader loaderSample = new FXMLLoader(getClass().getResource("sample.fxml"));
Parent root = loaderSample.load();
ControllerSample controllerSample = (ControllerSample) loaderSample.getController();
TextArea textAreaSample = controllerSample.getTextAreaSample();
textAreaSample.setText("\ndebug textAreaSample\n");
TextArea textAreaSendingPhotos = controllerSample.getSendingController().getSendingPhotosController()
.getTextAreaSendingPhotos();
textAreaSendingPhotos.setText("test test test");
primaryStage.setTitle("Hello World");
primaryStage.setScene(new Scene(root, 800, 400));
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}
添加回答
舉報
0/150
提交
取消