【发布时间】：2013-10-11 13:37:26
【问题描述】：
我有这段代码，它显示带有面板的列表。我想根据选定的操作打开相应的新面板：
package javafxapplication2;
import javafx.application.Application;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.ListCell;
import javafx.scene.control.ListView;
import javafx.scene.control.Tooltip;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.HBox;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
import javafx.util.Callback;
class Person {
private StringProperty aliasName;
private StringProperty newPanelName;
private StringProperty newPanelDescription;
private ObservableList<Person> panels = FXCollections.observableArrayList();
public final void setAliasName(String value) {
aliasNameProperty().set(value);
}
public final String getAliasName() {
return aliasNameProperty().get();
}
public StringProperty aliasNameProperty() {
if (aliasName == null) {
aliasName = new SimpleStringProperty();
}
return aliasName;
}
public final void setNewPanelName(String value) {
newPanelNameProperty().set(value);
}
public final String getNewPanelName() {
return newPanelNameProperty().get();
}
public StringProperty newPanelNameProperty() {
if (newPanelName == null) {
newPanelName = new SimpleStringProperty();
}
return newPanelName;
}
public final void setNewPanelDescription(String value) {
newPanelDescriptionProperty().set(value);
}
public final String getNewPanelDescription() {
return newPanelDescriptionProperty().get();
}
public StringProperty newPanelDescriptionProperty() {
if (newPanelDescription == null) {
newPanelDescription = new SimpleStringProperty();
}
return newPanelDescription;
}
public ObservableList<Person> panelsProperty() {
return panels;
}
public Person(String alias, String newPanelName, String newPanelDescription) {
setAliasName(alias);
setNewPanelName(newPanelName);
setNewPanelDescription(newPanelDescription);
}
}
public class JavaFXApplication2 extends Application {
public static void main(String[] args) {
Application.launch(args);
}
@Override
public void start(final Stage primaryStage) {
primaryStage.setTitle("test");
Group root = new Group();
Scene scene = new Scene(root, 500, 250, Color.WHITE);
// create a grid pane
GridPane gridpane = new GridPane();
gridpane.setPadding(new Insets(5));
gridpane.setHgap(10);
gridpane.setVgap(10);
ObservableList<Person> leaders = FXCollections.observableArrayList();
leaders.add(new Person("test 1", "test 11", "test 111"));
leaders.add(new Person("test 2", "test 22", "test 222"));
leaders.add(new Person("test 3", "test 33", "test 333"));
leaders.add(new Person("test 4", "test 44", "test 444"));
final ListView<Person> leaderListView = new ListView<>(leaders);
leaderListView.setPrefWidth(450);
leaderListView.setPrefHeight(150);
//
leaderListView.setCellFactory(new Callback<ListView<Person>, ListCell<Person>>() {
@Override
public ListCell<Person> call(ListView<Person> param) {
final Label leadLbl = new Label();
final Tooltip tooltip = new Tooltip();
final ListCell<Person> cell = new ListCell<Person>() {
@Override
public void updateItem(Person item, boolean empty) {
super.updateItem(item, empty);
if (item != null) {
leadLbl.setText(item.getAliasName());
setText(item.getNewPanelName());// + " " + item.getNewPanelDescription());
tooltip.setText(item.getAliasName());
setTooltip(tooltip);
}
}
}; // ListCell
return cell;
}
}); // setCellFactory
gridpane.add(leaderListView, 0, 1);
leaderListView.getSelectionModel().selectedItemProperty().addListener(new ChangeListener<Person>() {
@Override
public void changed(ObservableValue<? extends Person> observable,
Person oldValue, Person newValue) {
System.out.println("selection changed");
}
});
// Buttons
// Button "Open"
Button btnYes = new Button("Open");
btnYes.setOnAction(new EventHandler<ActionEvent>()
{
@Override
public void handle(ActionEvent event)
{
//Open Here the selected panel
primaryStage.close();
}
});
// Button "Cancel"
Button btnNo = new Button("Cancel");
btnNo.setOnAction(new EventHandler<ActionEvent>()
{
@Override
public void handle(ActionEvent event)
{
primaryStage.close();
}
});
HBox hbox = new HBox();
hbox.setSpacing(10);
hbox.setAlignment(Pos.CENTER);
hbox.getChildren().add(btnYes);
hbox.getChildren().add(btnNo);
gridpane.add(hbox, 0, 2);
root.getChildren().add(gridpane);
primaryStage.setScene(scene);
primaryStage.show();
}
}
我希望双击一行以打开相应的新面板，例如测试 11。
而且我还希望当我一键选择并单击“打开”按钮打开新窗口时。
可以帮忙修改代码吗？
【问题讨论】：
-
您要显示哪个面板？ Person 不是面板...
-
我想在双击或选择并单击“选择”按钮时显示的新面板代码未显示。这个想法是我想根据选择打开一个新窗口。
-
这个新的窗口构造函数接收人作为参数呢？
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您熟悉Oracle SQL Developer吗？打开软件。从上面的菜单中单击“新建”，您将看到标题为“新建”的窗口。并根据您的选择被转发到一个新窗口。我想实现相同的导航案例。