Java SceneBuilder自定义控件类路径
我对SceneBuilder和javafx处理自定义控件的方式已经束手无策Java SceneBuilder自定义控件类路径,java,javafx,javafx-8,scenebuilder,Java,Javafx,Javafx 8,Scenebuilder,我对SceneBuilder和javafx处理自定义控件的方式已经束手无策 我是使用fx:root还是不使用它?我选择使用它。如此内在 控制器+控件的根类,我将其自身设置为根 和控制器,正如所需。但它仍然说“根没有 已设置。请在加载之前使用方法setRoot() 在将容纳自定义控件的父FXML中,我是什么 应该进口吗 什么是正确的类路径,以便我可以显示我的自定义 SceneBuilder2.0中的控件?我不太明白这个问题 “/…/…/…/…/bin”之类的东西 有了新的标签,是否需要使用 在标记
标签,是否需要使用
在标记中了吗<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.layout.HBox?>
<fx:root type="HBox" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/8">
<children>
<ProgressBar fx:id="progressBar" prefWidth="200.0" progress="0.0" />
</children>
</fx:root>
package application.ctrl;
import java.io.IOException;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.control.ProgressIndicator;
import javafx.scene.layout.HBox;
import application.Main;
父FXML:
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.text.*?>
<?import javafx.geometry.*?>
<?import java.lang.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.layout.VBox?>
<?import application.ctrl.ProgressSelector?>
<VBox fx:id="vbox" spacing="5.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="application.ctrl.ObjectiveEditorCtrl">
<children>
<HBox>
<children>
<Button mnemonicParsing="false" onAction="#back" text="<" />
<Label text="Editing Objective:" />
</children>
</HBox>
<TextField fx:id="objectiveName" />
<ProgressSelector />
<HBox>
<children>
<Label text="Planned Start:" />
<Region HBox.hgrow="ALWAYS" />
<DatePicker fx:id="plannedStart" />
</children>
</HBox>
<HBox>
<children>
<Label text="Actual Start:" />
<Region HBox.hgrow="ALWAYS" />
<DatePicker fx:id="actualStart" />
</children>
</HBox>
<HBox>
<children>
<Label text="Planned Finish:" />
<Region HBox.hgrow="ALWAYS" />
<DatePicker fx:id="plannedFinish" />
</children>
</HBox>
<HBox>
<children>
<Label text="Actual Finish:" />
<Region HBox.hgrow="ALWAYS" />
<DatePicker fx:id="actualFinish" />
</children>
</HBox>
<HBox alignment="CENTER_RIGHT">
<children>
<Button mnemonicParsing="false" onAction="#save" text="Save" />
<Button mnemonicParsing="false" onAction="#back" text="Cancel" />
</children>
</HBox>
</children>
<padding>
<Insets bottom="5.0" left="5.0" right="5.0" top="5.0" />
</padding>
</VBox>
这里有很多问题
1-使用fx:root可以自定义FXMLLoader,您可以更改实例化组件的方式:
但是,对于SceneBuilder 2,它根本无法正常工作!场景生成器2的“规范”方式(与1配合良好)似乎不使用fx:root
2-这取决于您在1中选择的模式。可以是FXML中带有显式导入的自定义java组件,也可以使用FXML:include。首先是FXML,然后是控制器。或者抽象组件(控制器为fx:root),然后是FXML
3-SceneBuilder 2在类加载器方面有很多问题,因为每个自定义组件都加载了一个不同的类加载器,这意味着您将在大量未找到类的情况下运行,就像异常一样。解决此问题的一种方法是fork SceneBuilder强制所有自定义组件仅使用一个类加载器:
或者等待修复。或者不使用fx:root并首选fx:include。或者根本不使用场景生成器,这对于许多人来说都是一个有效的解决方案
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.text.*?>
<?import javafx.geometry.*?>
<?import java.lang.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.layout.VBox?>
<?import application.ctrl.ProgressSelector?>
<VBox fx:id="vbox" spacing="5.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="application.ctrl.ObjectiveEditorCtrl">
<children>
<HBox>
<children>
<Button mnemonicParsing="false" onAction="#back" text="<" />
<Label text="Editing Objective:" />
</children>
</HBox>
<TextField fx:id="objectiveName" />
<ProgressSelector />
<HBox>
<children>
<Label text="Planned Start:" />
<Region HBox.hgrow="ALWAYS" />
<DatePicker fx:id="plannedStart" />
</children>
</HBox>
<HBox>
<children>
<Label text="Actual Start:" />
<Region HBox.hgrow="ALWAYS" />
<DatePicker fx:id="actualStart" />
</children>
</HBox>
<HBox>
<children>
<Label text="Planned Finish:" />
<Region HBox.hgrow="ALWAYS" />
<DatePicker fx:id="plannedFinish" />
</children>
</HBox>
<HBox>
<children>
<Label text="Actual Finish:" />
<Region HBox.hgrow="ALWAYS" />
<DatePicker fx:id="actualFinish" />
</children>
</HBox>
<HBox alignment="CENTER_RIGHT">
<children>
<Button mnemonicParsing="false" onAction="#save" text="Save" />
<Button mnemonicParsing="false" onAction="#back" text="Cancel" />
</children>
</HBox>
</children>
<padding>
<Insets bottom="5.0" left="5.0" right="5.0" top="5.0" />
</padding>
</VBox>
package application.ctrl;
import interfaces.ControlledScreenInterface;
import java.net.URL;
import java.util.ResourceBundle;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.DatePicker;
import javafx.scene.control.TextField;
import javafx.scene.layout.VBox;
import application.ScreenController;
import application.objects.Objective;
public class ObjectiveEditorCtrl implements Initializable,
ControlledScreenInterface {
@FXML
private TextField objectiveName;
@FXML
private ProgressSelector completion;
@FXML
private DatePicker plannedStart;
@FXML
private DatePicker plannedFinish;
@FXML
private DatePicker actualStart;
@FXML
private DatePicker actualFinish;
@FXML
private VBox vbox;
private ScreenController parent;
private Objective current;
@Override
public void initialize(URL location, ResourceBundle resources) {
// TODO Auto-generated method stub
}
public void init(Objective current) {
this.current = current;
objectiveName.setText(current.getName());
// completion.setProgress(current.getCompletion());
plannedStart.setValue(current.getPlannedStart());
actualStart.setValue(current.getActualStart());
plannedFinish.setValue(current.getPlannedFinish());
actualFinish.setValue(current.getActualFinish());
}
public void save() {
// current.setName(objectiveName.getText());
// // current.setCompletion(completion.getProgress());
// current.setPlannedStart(plannedStart.getValue());
// current.setPlannedFinish(plannedFinish.getValue());
// current.setActualStart(actualStart.getValue());
// current.setActualFinish(actualFinish.getValue());
// back();
}
public void back() {
parent.back();
}
@Override
public void setParentScreen(ScreenController parent) {
this.parent = parent;
}
}