是否有任何示例如何在 JavaFX 中创建向导?
例如设置程序或配置。这可以用简单的代码完成还是我需要创建自定义组件?
此代码是基于 SWT 的 java2s 解决方案的 JavaFX 2.x 转换。
您可以修改此代码以使用ControlsFX 对话框来获得更专业的向导外观。
import javafx.application.Application;
import javafx.beans.property.*;
import javafx.beans.value.*;
import javafx.collections.*;
import javafx.scene.*;
import javafx.scene.control.*;
import javafx.scene.layout.*;
import javafx.stage.Stage;
import java.util.Stack;
/**
* This class displays a survey using a wizard
*/
public class Survey extends Application {
public static void main(String[] args) throws Exception {
launch(args);
}
@Override
public void start(Stage stage) throws Exception {
// configure and display the scene and stage.
stage.setScene(new Scene(new SurveyWizard(stage), 400, 250));
stage.show();
}
}
/**
* basic wizard infrastructure class
*/
class Wizard extends StackPane {
private static final int UNDEFINED = -1;
private ObservableList<WizardPage> pages = FXCollections.observableArrayList();
private Stack<Integer> history = new Stack<>();
private int curPageIdx = UNDEFINED;
Wizard(WizardPage... nodes) {
pages.addAll(nodes);
navTo(0);
setStyle("-fx-padding: 10; -fx-background-color: cornsilk;");
}
void nextPage() {
if (hasNextPage()) {
navTo(curPageIdx + 1);
}
}
void priorPage() {
if (hasPriorPage()) {
navTo(history.pop(), false);
}
}
boolean hasNextPage() {
return (curPageIdx < pages.size() - 1);
}
boolean hasPriorPage() {
return !history.isEmpty();
}
void navTo(int nextPageIdx, boolean pushHistory) {
if (nextPageIdx < 0 || nextPageIdx >= pages.size()) return;
if (curPageIdx != UNDEFINED) {
if (pushHistory) {
history.push(curPageIdx);
}
}
WizardPage nextPage = pages.get(nextPageIdx);
curPageIdx = nextPageIdx;
getChildren().clear();
getChildren().add(nextPage);
nextPage.manageButtons();
}
void navTo(int nextPageIdx) {
navTo(nextPageIdx, true);
}
void navTo(String id) {
if (id == null) {
return;
}
pages.stream()
.filter(page -> id.equals(page.getId()))
.findFirst()
.ifPresent(page ->
navTo(pages.indexOf(page))
);
}
public void finish() {
}
public void cancel() {
}
}
/**
* basic wizard page class
*/
abstract class WizardPage extends VBox {
Button priorButton = new Button("_Previous");
Button nextButton = new Button("N_ext");
Button cancelButton = new Button("Cancel");
Button finishButton = new Button("_Finish");
WizardPage(String title) {
Label label = new Label(title);
label.setStyle("-fx-font-weight: bold; -fx-padding: 0 0 5 0;");
setId(title);
setSpacing(5);
setStyle("-fx-padding:10; -fx-background-color: honeydew; -fx-border-color: derive(honeydew, -30%); -fx-border-width: 3;");
Region spring = new Region();
VBox.setVgrow(spring, Priority.ALWAYS);
getChildren().addAll(getContent(), spring, getButtons());
priorButton.setOnAction(event -> priorPage());
nextButton.setOnAction(event -> nextPage());
cancelButton.setOnAction(event -> getWizard().cancel());
finishButton.setOnAction(event -> getWizard().finish());
}
HBox getButtons() {
Region spring = new Region();
HBox.setHgrow(spring, Priority.ALWAYS);
HBox buttonBar = new HBox(5);
cancelButton.setCancelButton(true);
finishButton.setDefaultButton(true);
buttonBar.getChildren().addAll(spring, priorButton, nextButton, cancelButton, finishButton);
return buttonBar;
}
abstract Parent getContent();
boolean hasNextPage() {
return getWizard().hasNextPage();
}
boolean hasPriorPage() {
return getWizard().hasPriorPage();
}
void nextPage() {
getWizard().nextPage();
}
void priorPage() {
getWizard().priorPage();
}
void navTo(String id) {
getWizard().navTo(id);
}
Wizard getWizard() {
return (Wizard) getParent();
}
public void manageButtons() {
if (!hasPriorPage()) {
priorButton.setDisable(true);
}
if (!hasNextPage()) {
nextButton.setDisable(true);
}
}
}
/**
* This class shows a satisfaction survey
*/
class SurveyWizard extends Wizard {
Stage owner;
public SurveyWizard(Stage owner) {
super(new ComplaintsPage(), new MoreInformationPage(), new ThanksPage());
this.owner = owner;
}
public void finish() {
System.out.println("Had complaint? " + SurveyData.instance.hasComplaints.get());
if (SurveyData.instance.hasComplaints.get()) {
System.out.println("Complaints: " +
(SurveyData.instance.complaints.get().isEmpty()
? "No Details"
: "\n" + SurveyData.instance.complaints.get())
);
}
owner.close();
}
public void cancel() {
System.out.println("Cancelled");
owner.close();
}
}
/**
* Simple placeholder class for the customer entered survey response.
*/
class SurveyData {
BooleanProperty hasComplaints = new SimpleBooleanProperty();
StringProperty complaints = new SimpleStringProperty();
static SurveyData instance = new SurveyData();
}
/**
* This class determines if the user has complaints.
* If not, it jumps to the last page of the wizard.
*/
class ComplaintsPage extends WizardPage {
private RadioButton yes;
private RadioButton no;
private ToggleGroup options = new ToggleGroup();
public ComplaintsPage() {
super("Complaints");
nextButton.setDisable(true);
finishButton.setDisable(true);
yes.setToggleGroup(options);
no.setToggleGroup(options);
options.selectedToggleProperty().addListener(new ChangeListener<Toggle>() {
@Override
public void changed(ObservableValue<? extends Toggle> observableValue, Toggle oldToggle, Toggle newToggle) {
nextButton.setDisable(false);
finishButton.setDisable(false);
}
});
}
Parent getContent() {
yes = new RadioButton("Yes");
no = new RadioButton("No");
SurveyData.instance.hasComplaints.bind(yes.selectedProperty());
return new VBox(
5,
new Label("Do you have complaints?"), yes, no
);
}
void nextPage() {
// If they have complaints, go to the normal next page
if (options.getSelectedToggle().equals(yes)) {
super.nextPage();
} else {
// No complaints? Short-circuit the rest of the pages
navTo("Thanks");
}
}
}
/**
* This page gathers more information about the complaint
*/
class MoreInformationPage extends WizardPage {
public MoreInformationPage() {
super("More Info");
}
Parent getContent() {
TextArea textArea = new TextArea();
textArea.setWrapText(true);
textArea.setPromptText("Tell me what's wrong Dave...");
nextButton.setDisable(true);
textArea.textProperty().addListener((observableValue, oldValue, newValue) -> {
nextButton.setDisable(newValue.isEmpty());
});
SurveyData.instance.complaints.bind(textArea.textProperty());
return new VBox(
5,
new Label("Please enter your complaints."),
textArea
);
}
}
/**
* This page thanks the user for taking the survey
*/
class ThanksPage extends WizardPage {
public ThanksPage() {
super("Thanks");
}
Parent getContent() {
StackPane stack = new StackPane(
new Label("Thanks!")
);
VBox.setVgrow(stack, Priority.ALWAYS);
return stack;
}
}
更新
此代码已更新为使用一些 JavaFX 8 功能。
进一步改进的建议
ControlsFX 向导
3rd 方 ControlsFX 库中的向导实现实现了上面详述的一些建议的增强功能,因此,对于许多人来说,与此答案中概述的简单示例相比,对于生产质量应用程序来说,这将是一个更好的解决方案。
使用http://fxexperience.com/controlsfx/库,以下代码适用于我。它为每个向导页面使用 fxml 文件。辅助函数 runWizard 然后加载资源并从中创建页面。当然,您可以修改ControlsFX 8.20.7 向导示例中概述的内容 - 让向导工作
运行向导的使用
String[] pageNames = { "page1","page2","page3" };
Platform.runLater(() ->{
try {
runWizard(I18n.get(I18n.WELCOME),"/com/bitplan/demo/",pageNames);
} catch (Exception e) {
ErrorHandler.handle(e)
}
});
ControlsFX Maven 依赖项
<!-- https://mvnrepository.com/artifact/org.controlsfx/controlsfx -->
<dependency>
<groupId>org.controlsfx</groupId>
<artifactId>controlsfx</artifactId>
<version>8.40.12</version>
</dependency>
runWizard 辅助函数
/**
* run the wizard with the given title
* @param title - of the wizard
* @param resourcePath - where to load the fxml files from
* @param pageNames - without .fxml extenion
* @throws Exception - e.g. IOException
*/
public void runWizard(String title,String resourcePath,String ...pageNames) throws Exception {
Wizard wizard = new Wizard();
wizard.setTitle(title);
WizardPane[] pages = new WizardPane[pageNames.length];
int i = 0;
for (String pageName : pageNames) {
Parent root = FXMLLoader.load(getClass()
.getResource(resourcePath + pageName + ".fxml"));
WizardPane page = new WizardPane();
page.setHeaderText(I18n.get(pageName));
page.setContent(root);
pages[i++] = page;
}
wizard.setFlow(new LinearFlow(pages));
wizard.showAndWait().ifPresent(result -> {
if (result == ButtonType.FINISH) {
System.out
.println("Wizard finished, settings: " + wizard.getSettings());
}
});
}
这是我的解决方案,使用ControlsFX Wizard
类和 FXML,以及非模态向导。
向导视图.fxml:
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.AnchorPane?>
<?import org.controlsfx.dialog.*?>
<AnchorPane xmlns="http://javafx.com/javafx/8.0.112" xmlns:fx="http://javafx.com/fxml/1"
fx:controller="WizardController"
>
<WizardPane fx:id="step1Pane" headerText="Step 1">
<content>
<Label text="Do action 1, then action 2."/>
<ButtonBar>
<buttons>
<Button text="Action 1" onAction="#displayScreenForAction1"/>
</buttons>
</ButtonBar>
</content>
</WizardPane>
<WizardPane fx:id="step2Pane" headerText="Step 2">
...
</WizardPane>
</AnchorPane>
Wizard
注意:使用 a而不是a 会更好Anchor
,但这需要LinearFlow
是一个公共类型,现在情况并非如此(它是 Java 1.8.0_144 中的内部类Wizard
)。
WizardController.java:
public class WizardController {
@FXML
private WizardPane step1Pane;
@FXML
private WizardPane step2Pane;
...
void show() {
Wizard wizard = new Wizard();
wizard.setFlow(new Wizard.LinearFlow(
step1Pane,
step2Pane,
...
));
wizard.resultProperty().addListener((observable, oldValue, newValue) -> {
wizardStage.close();
});
// show wizard and wait for response
Stage wizardStage = new Stage();
wizardStage.setTitle("... wizard");
wizardStage.setScene(wizard.getScene());
wizardStage.show();
}
}
应用类:
public class WizardApp extends Application {
public static void main(String[] args) {
launch(args);
}
@Override
public void init() throws Exception {
super.init();
...
FXMLLoader loader = new FXMLLoader();
loader.setLocation(getClass().getResource("WizardView.fxml"));
wizardController = loader.getController();
}
@FXML
private void showWizard(ActionEvent actionEvent) {
wizardController.show();
}
}
例如,DataFX 2 具有用于设计向导的流程 API。您可以通过视图列表/地图定义流程并共享数据模型。有关更多信息,请参阅此演示文稿:http ://de.slideshare.net/HendrikEbbers/datafx-javaone-2013