listview单元工厂工件
我正在使用JavaFXListView组件,希望使用自定义单元格工厂。打开包含列表视图的对话框后,项目将正确呈现。但是,如果我试图从基础可观察列表中添加或删除一个项目,列表视图中的项目将无法正确呈现。我将有细胞复制或完全丢失。以下是我的自定义单元格的FXML:listview单元工厂工件,listview,javafx,Listview,Javafx,我正在使用JavaFXListView组件,希望使用自定义单元格工厂。打开包含列表视图的对话框后,项目将正确呈现。但是,如果我试图从基础可观察列表中添加或删除一个项目,列表视图中的项目将无法正确呈现。我将有细胞复制或完全丢失。以下是我的自定义单元格的FXML: <?xml version="1.0" encoding="UTF-8"?> <?import javafx.geometry.Insets?> <?import javafx.scene.control.
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.geometry.Insets?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.layout.VBox?>
<?import javafx.scene.text.Font?>
<?import org.controlsfx.glyphfont.Glyph?>
<VBox fx:id="vbox" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="150.0" prefWidth="300.0" spacing="5.0" xmlns="http://javafx.com/javafx/8.0.111" xmlns:fx="http://javafx.com/fxml/1">
<padding>
<Insets bottom="10.0" left="10.0" right="10.0" top="10.0" />
</padding>
<children>
<Label fx:id="nameLabel" style="-fx-font-weight: bold; -fx-font-size: 14;" text="Mr Stephen Lowe" />
<Label fx:id="mobileLabel" text="07798933862">
<graphic>
<Glyph fontFamily="FontAwesome" icon="PHONE" />
</graphic>
<font>
<Font size="12.0" />
</font>
</Label>
<Label fx:id="emailLabel" text="stephen.lowe@mypostoffice.co.uk">
<graphic>
<Glyph fontFamily="FontAwesome" icon="ENVELOPE" />
</graphic>
<font>
<Font size="12.0" />
</font>
</Label>
<Label fx:id="churchMemberLabel" text="Church Member" textFill="#388e3c">
<font>
<Font size="12.0" />
</font></Label>
</children>
</VBox>
下面是我的自定义ListCell子类:
/**
*
* @author Stephen
*/
public class MemberListViewCell extends ListCell<MemberEntity> {
@FXML
private Label nameLabel;
@FXML
private Label mobileLabel;
@FXML
private Label emailLabel;
@FXML
private Label churchMemberLabel;
@FXML
private VBox vbox;
private FXMLLoader loader;
public MemberListViewCell() {
}
@Override
protected void updateItem(MemberEntity item, boolean empty) {
super.updateItem(item, empty);
if (empty || item == null) {
setText(null);
} else {
if (loader == null) {
loader = new FXMLLoader(getClass().getResource("/fxml/listcell.fxml"));
loader.setController(this);
try {
loader.load();
} catch (IOException ex) {
Alert alert = new Alert(Alert.AlertType.ERROR);
alert.setTitle("Open FXML");
alert.setHeaderText("FXML Error");
String msg = "Could not load FXML for list cell factory. Inform software engineer. Terminating program.";
msg += ex.toString();
alert.setContentText(msg);
alert.showAndWait();
System.exit(1);
}
}
nameLabel.setText(item.getName().getFormattedName(Name.NameFormat.FORENAME_SURNAME));
mobileLabel.setText(item.getMobileTelephone());
emailLabel.setText(item.getEmailAddress());
if (item.isChurchMember()) {
churchMemberLabel.setText("Church Member");
churchMemberLabel.setTextFill(Paint.valueOf("#388e3c"));
} else {
churchMemberLabel.setText("Not Church Member");
churchMemberLabel.setTextFill(Paint.valueOf("#d32f2f"));
}
setText(null);
setGraphic(vbox);
}
}
}
/**
*
*@作者斯蒂芬
*/
公共类MemberListViewCell扩展了ListCell{
@FXML
自有品牌;
@FXML
自有品牌mobileLabel;
@FXML
自有品牌;
@FXML
自有品牌;
@FXML
专用VBox VBox;
私人FXMLLoader;
公共成员ListViewCell(){
}
@凌驾
受保护的void updateItem(MemberEntity项,布尔值为空){
super.updateItem(项,空);
if(空| |项==null){
setText(空);
}否则{
if(loader==null){
loader=newFXMLloader(getClass().getResource(“/fxml/listcell.fxml”);
loader.setController(此);
试一试{
loader.load();
}捕获(IOEX异常){
警报=新警报(Alert.AlertType.ERROR);
alert.setTitle(“Open FXML”);
alert.setHeaderText(“FXML错误”);
String msg=“无法为列表单元格工厂加载FXML。请通知软件工程师。正在终止程序。”;
msg+=例如toString();
alert.setContentText(msg);
alert.showAndWait();
系统出口(1);
}
}
namelab.setText(item.getName().getFormattedName(Name.NameFormat.FORENAME\u姓氏));
setText(item.getMobileTelephone());
emailLabel.setText(item.getEmailAddress());
if(item.ischurcmember()){
churchMemberLabel.setText(“教会成员”);
churchMemberLabel.SettexFill(Paint.valueOf(“#388e3c”);
}否则{
churchMemberLabel.setText(“非教会成员”);
churchMemberLabel.SettexFill(Paint.valueOf(“#d32f2f”);
}
setText(空);
设置图形(vbox);
}
}
}
由于您为非空单元格设置了图形,因此如果单元格变为空,则需要将其设置回null:
@Override
protected void updateItem(MemberEntity item, boolean empty) {
super.updateItem(item, empty);
if (empty || item == null) {
setText(null);
setGraphic(null);
} else {
// existing code ...
}
}
由于为非空单元格设置了图形,因此如果单元格变为空,则需要将其设置回null:
@Override
protected void updateItem(MemberEntity item, boolean empty) {
super.updateItem(item, empty);
if (empty || item == null) {
setText(null);
setGraphic(null);
} else {
// existing code ...
}
}