Question

我迷路了。实际上，有一个javafx tableview包含几行。只有一列。使用Tooltip类是为了将行文本内容显示为气泡。当鼠标光标悬停在该行上方时，会显示该气泡；当鼠标光标离开该行时，气泡必须消失。问题在于，有时气泡不会消失。它停留在屏幕上，并且不再移动。但是，可以移动和使用该应用程序。气泡不会移动，并且似乎停留在计算机背景上。您是否知道如何解决这个问题？

下面的代码用于创建和关闭气泡：

    public void bindTooltip(final Node node, final Tooltip tooltip) {
    node.setOnMouseMoved(event -> tooltip.show(node, event.getScreenX(), event.getScreenY() + 15));
    node.setOnMouseExited((event) -> hideTooltip(tooltip));
}

private void hideTooltip(Tooltip tooltip) {
    if (tooltip.isShowing()) {
        tooltip.hide();
    }
}

bindTooltip方法用于将行绑定到工具提示。

谢谢您的帮助。

习惯上

Vinz

Answer 1

尝试使用table.setRowFactory设置ToolTip。下面的例子。来自here的代码。

键码！

table.setRowFactory(tv -> {
    TableRow<UserAccount> row = new TableRow();
    Tooltip tooltip = new Tooltip();
    row.setOnMouseEntered((event) -> {
        if (!row.isEmpty()) {
            UserAccount tempUserAccount = row.getItem();
            tooltip.setText(tempUserAccount.getLastName() + ", " + tempUserAccount.getFirstName());
            row.setTooltip(tooltip);
        }
    });

    return row;
});

完整代码

主要

import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableRow;
import javafx.scene.control.TableView;
import javafx.scene.control.Tooltip;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

public class TableViewDemo2 extends Application
{

    @Override
    public void start(Stage stage)
    {

        TableView<UserAccount> table = new TableView<UserAccount>();

        // Create column UserName (Data type of String).
        TableColumn<UserAccount, String> userNameCol //
                = new TableColumn<UserAccount, String>("User Name");

        // Create column Email (Data type of String).
        TableColumn<UserAccount, String> emailCol//
                = new TableColumn<UserAccount, String>("Email");

        // Create column FullName (Data type of String).
        TableColumn<UserAccount, String> fullNameCol//
                = new TableColumn<UserAccount, String>("Full Name");

        // Create 2 sub column for FullName.
        TableColumn<UserAccount, String> firstNameCol//
                = new TableColumn<UserAccount, String>("First Name");

        TableColumn<UserAccount, String> lastNameCol //
                = new TableColumn<UserAccount, String>("Last Name");

        // Add sub columns to the FullName
        fullNameCol.getColumns().addAll(firstNameCol, lastNameCol);

        // Active Column
        TableColumn<UserAccount, Boolean> activeCol//
                = new TableColumn<UserAccount, Boolean>("Active");

        // Defines how to fill data for each cell.
        // Get value from property of UserAccount. .
        userNameCol.setCellValueFactory(new PropertyValueFactory<>("userName"));
        emailCol.setCellValueFactory(new PropertyValueFactory<>("email"));
        firstNameCol.setCellValueFactory(new PropertyValueFactory<>("firstName"));
        lastNameCol.setCellValueFactory(new PropertyValueFactory<>("lastName"));
        activeCol.setCellValueFactory(new PropertyValueFactory<>("active"));

        // Set Sort type for userName column
        userNameCol.setSortType(TableColumn.SortType.DESCENDING);
        lastNameCol.setSortable(false);

        // Display row data
        ObservableList<UserAccount> list = getUserList();
        table.setItems(list);

        table.getColumns().addAll(userNameCol, emailCol, fullNameCol, activeCol);

        table.setRowFactory(tv -> {

            TableRow<UserAccount> row = new TableRow();
            Tooltip tooltip = new Tooltip();
            row.setOnMouseEntered((event) -> {
                if (!row.isEmpty()) {
                    UserAccount tempUserAccount = row.getItem();
                    tooltip.setText(tempUserAccount.getLastName() + ", " + tempUserAccount.getFirstName());
                    row.setTooltip(tooltip);
                }
            });

            return row;
        });

        StackPane root = new StackPane();
        root.setPadding(new Insets(5));
        root.getChildren().add(table);

        stage.setTitle("TableView (o7planning.org)");

        Scene scene = new Scene(root, 450, 300);
        stage.setScene(scene);
        stage.show();
    }

    private ObservableList<UserAccount> getUserList()
    {

        UserAccount user1 = new UserAccount(1L, "smith", "smith@gmail.com", //
                "Susan", "Smith", true);
        UserAccount user2 = new UserAccount(2L, "mcneil", "mcneil@gmail.com", //
                "Anne", "McNeil", true);
        UserAccount user3 = new UserAccount(3L, "white", "white@gmail.com", //
                "Kenvin", "White", false);

        ObservableList<UserAccount> list = FXCollections.observableArrayList(user1, user2, user3);
        return list;
    }

    public static void main(String[] args)
    {
        launch(args);
    }
}

UserAccount

public class UserAccount
{

    private Long id;
    private String userName;
    private String email;
    private String firstName;
    private String lastName;
    private boolean active;

    public UserAccount(Long id, String userName, String email, //
            String firstName, String lastName, boolean active)
    {
        this.id = id;
        this.userName = userName;
        this.email = email;
        this.firstName = firstName;
        this.lastName = lastName;
        this.active = active;
    }

    public Long getId()
    {
        return id;
    }

    public void setId(Long id)
    {
        this.id = id;
    }

    public String getUserName()
    {
        return userName;
    }

    public void setUserName(String userName)
    {
        this.userName = userName;
    }

    public String getEmail()
    {
        return email;
    }

    public void setEmail(String email)
    {
        this.email = email;
    }

    public String getFirstName()
    {
        return firstName;
    }

    public void setFirstName(String firstName)
    {
        this.firstName = firstName;
    }

    public String getLastName()
    {
        return lastName;
    }

    public void setLastName(String lastName)
    {
        this.lastName = lastName;
    }

    public boolean isActive()
    {
        return active;
    }

    public void setActive(boolean active)
    {
        this.active = active;
    }

}

Java工具提示：当鼠标光标从javafx表格视图中离开一行时，它不应停留在屏幕上

1 个答案: