1
好的,我創建了自己的客戶標籤,因爲這個示例非常基本。我所做的是擴展名爲MyLabel的自定義類中的Javafx Label。我也使用FXML來創建GUI。現在,當我這樣做時,我似乎無法實例化我的自定義類,因爲我得到這個錯誤。使用自定義javafx標籤不起作用
"Can not set net.blacksquirreldevs.tests.MyLabel field net.blacksquirreldevs.tests.SampleLabelController.sampleLabel to javafx.scene.control.Label"
這裏是一切
代碼Main.java
package net.blacksquirreldevs.tests;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.layout.AnchorPane;
import javafx.stage.Stage;
public class Main extends Application {
@Override
public void start(Stage primaryStage) throws Exception {
primaryStage.setTitle("SampleLabel");
AnchorPane anchorPane = (AnchorPane) FXMLLoader.load(getClass().getResource("SampleLabel.fxml"));
primaryStage.setScene(new Scene(anchorPane));
primaryStage.show();
}
public static void main(String... args) {
launch(args);
}
}
MyLabel.java
package net.blacksquirreldevs.tests;
import javafx.scene.control.Label;
public class MyLabel extends Label {
public MyLabel(String text) {
super();
setText(text);
}
}
SampleLabelController.java
package net.blacksquirreldevs.tests;
import javafx.fxml.FXML;
import java.net.URL;
import java.util.ResourceBundle;
public class SampleLabelController {
@FXML
private ResourceBundle resources;
@FXML
private URL location;
@FXML
private MyLabel sampleLabel = new MyLabel("Hello world!");
@FXML
void initialize() {
assert sampleLabel != null : "fx:id=\"sampleLabel\" was not injected: check your FXML file 'SampleLabel.fxml'.";
}
}
最後的FXML文件SampleLabel.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import java.util.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.paint.*?>
<?import javafx.scene.text.*?>
<AnchorPane id="AnchorPane" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns:fx="http://javafx.com/fxml" fx:controller="net.blacksquirreldevs.tests.SampleLabelController">
<children>
<Label fx:id="sampleLabel" layoutX="153.0" layoutY="171.0" text="Sample Text">
<font>
<Font name="Arial Bold" size="50.0" />
</font>
</Label>
</children>
</AnchorPane>
所以,我想知道的是,爲什麼我不能申報,在我SamplelabelController類中,sampleLabel爲MyLabel?
希望我已經解釋得很好,如果不讓我知道,我會盡量詳細一點。
謝謝,我甚至沒有考慮過那部分,因爲我使用場景生成器來創建UI。這讓我朝正確的方向看什麼。謝謝! – DerekE 2013-05-04 23:23:16