在JavaFX中创建向导

时间：2013-10-05 14:40:02

标签： javafx-2 javafx javafx-8

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？

4 个答案:

答案 0 :(得分：12)

这是code for a sample wizard in JavaFX。

This code was a JavaFX 2.x conversion of a SWT based solution for java2s

您可以修改此代码以使用ControlsFX dialogs来获得更专业的向导外观。

survey1 survey2 survey3 

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某些JavaFX 8功能。

进一步改进的建议

  1. JavaFX 8u40中还有dialogs和alerts附近的设施，可以在上面的代码中使用，而不是当前代码使用的简单的内置对话系统。
  2. 当前代码使用内嵌样式用于控件而不是外部样式表 - 这使得代码可以作为单个文件执行，但对于生产代码，建议使用外部样式表。

    3. ControlsFX向导

    Wizard implementation in the 3rd party ControlsFX库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，生产质量应用程序的解决方案比本答案中概述的简单示例更好。

答案 1 :(得分：1)

例如，

DataFX 2有一个用于设计向导的流程API。您可以通过列表/视图映射定义流并共享数据模型。有关详细信息，请参阅此演示文稿：http://de.slideshare.net/HendrikEbbers/datafx-javaone-2013

答案 2 :(得分：1)

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 Wizard examples - getting Wizards to work

中列出的内容

runWizard的用法 

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 

    <!-- https://mvnrepository.com/artifact/org.controlsfx/controlsfx -->
    <dependency>
        <groupId>org.controlsfx</groupId>
        <artifactId>controlsfx</artifactId>
        <version>8.40.12</version>
    </dependency>

runWizard帮助函数 

/**
   * 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());
      }
    });
  }

答案 3 :(得分：1)

这是我的解决方案，使用ControlsFX Wizard类和FXML，使用非模态向导。

WizardView.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>

注意：最好使用Wizard代替Anchor，但这需要LinearFlow作为公共类型，而现在情况并非如此（＆＃39} ; s是Java 1.8.0_144中Wizard的内部类。

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();
    }
}

申请类：

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();
    }

}

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