[英]JavaFX FXML Label doesn't update its value
我正在嘗試從另一個控制器更新標簽,但不會進行視覺更新。
以下控制器控件可動態加載外部控制器。
private ClientShowController clientShowController;
public void initialize(){
try {
pane_clientDetail.getChildren().add(FXMLLoader.load(getClass().getResource("../resources/Client_show.fxml")));
FXMLLoader loader = new FXMLLoader(getClass().getResource("../resources/Client_show.fxml"));
loader.load();
clientShowController = (ClientShowController) loader.getController();
System.out.println(clientShowController);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private void showPersonDetails(Person person) {
if (person != null) {
//Update
clientShowController.setId(Integer.toString(person.getId()));
}
}
第二個控制器:
@FXML private Label lbl_id;
public void setId(String strId){
System.out.println(strId);
lbl_id.setText(strId);
System.out.println(lbl_id);
}
注意:
pane_clientDetail.getChildren().add()
。 通過第二個控制器中的initialize方法設置ID時,該ID將按預期方式顯示在標簽中:
公共無效initialize(){this.setId(“ 12”); }
編輯:
第一個(主要)FXML定義:
<Pane fx:id="pane_clientDetail"/>
此窗格被聲明為屬性
@FXML private Pane pane_clientDetail;
第二:
<GridPane xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="application.controllers.ClientShowController">
<columnConstraints>
<ColumnConstraints hgrow="SOMETIMES" maxWidth="144.0" minWidth="10.0" prefWidth="102.0" />
<ColumnConstraints hgrow="SOMETIMES" maxWidth="195.0" minWidth="10.0" prefWidth="195.0" />
</columnConstraints>
<rowConstraints>
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
</rowConstraints>
<children>
<Label text="given name" GridPane.rowIndex="1">
<GridPane.margin>
<Insets left="10.0" />
</GridPane.margin>
</Label>
<Label text="family name" GridPane.rowIndex="2">
<GridPane.margin>
<Insets left="10.0" />
</GridPane.margin>
</Label>
<Label text="gender" GridPane.rowIndex="3">
<GridPane.margin>
<Insets left="10.0" />
</GridPane.margin>
</Label>
<Label text="email" GridPane.rowIndex="4">
<GridPane.margin>
<Insets left="10.0" />
</GridPane.margin>
</Label>
<Label text="phone" GridPane.rowIndex="5">
<GridPane.margin>
<Insets left="10.0" />
</GridPane.margin>
</Label>
<Label text="id">
<GridPane.margin>
<Insets left="10.0" />
</GridPane.margin>
</Label>
<Label text="address" GridPane.rowIndex="6">
<GridPane.margin>
<Insets left="10.0" />
</GridPane.margin>
</Label>
<Label text="zip" GridPane.rowIndex="7">
<GridPane.margin>
<Insets left="10.0" />
</GridPane.margin>
</Label>
<Label fx:id="lbl_id" text="-" GridPane.columnIndex="1">
<GridPane.margin>
<Insets />
</GridPane.margin>
</Label>
<Label fx:id="lbl_given_name" text="-" GridPane.columnIndex="1" GridPane.rowIndex="1" />
<Label fx:id="lbl_family_name" text="-" GridPane.columnIndex="1" GridPane.rowIndex="2" />
<Label fx:id="lbl_gender" text="-" GridPane.columnIndex="1" GridPane.rowIndex="3" />
<Label fx:id="lbl_email" text="-" GridPane.columnIndex="1" GridPane.rowIndex="4" />
<Label fx:id="lbl_phone" text="-" GridPane.columnIndex="1" GridPane.rowIndex="5" />
<Label fx:id="lbl_address" text="-" GridPane.columnIndex="1" GridPane.rowIndex="6" />
<Label fx:id="lbl_zip" text="-" GridPane.columnIndex="1" GridPane.rowIndex="7" />
<Label text="city" GridPane.rowIndex="8">
<GridPane.margin>
<Insets left="10.0" />
</GridPane.margin>
</Label>
<Label fx:id="lbl_city" text="-" GridPane.columnIndex="1" GridPane.rowIndex="8" />
</children>
<VBox.margin>
<Insets top="10.0" />
</VBox.margin>
</GridPane>
看來您有兩個UI實例:
1. pane_clientDetail.getChildren().add(FXMLLoader.load(getClass().getResource("../resources/Client_show.fxml")));
2. FXMLLoader loader = new FXMLLoader(getClass().getResource("../resources/Client_show.fxml"));
您首先加載一個視圖,並將其附加到pane_clientDetail
,這就是正在顯示的視圖。 然后,您創建另一個,並為其獲取控制器。 出於明顯的原因,第二個控制器不會更新第一個視圖。
解:
FXMLLoader loader = new FXMLLoader(getClass().getResource("../resources/Client_show.fxml"));
Parent view = loader.load();
pane_clientDetail.getChildren().add(view);
// rest of the code
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