我想永远不要像以编程方式显示/隐藏虚拟键盘一样隐藏虚拟键盘
或者(如果上面所说的不可能的话)
我想从虚拟键盘移除/隐藏/禁用下面(突出显示的绿色左下角)按钮。
在任何情况下都不要隐藏键盘,除非程序没有终止。
代码:你也可以在github上查看我的代码。
package com.binaryname.view;
import java.util.Iterator;
import com.sun.javafx.print.PrintHelper;
import com.sun.javafx.print.Units;
import com.sun.javafx.scene.control.skin.FXVK;
import javafx.application.Application;
import javafx.application.Platform;
import javafx.beans.value.ChangeListener;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Bounds;
import javafx.geometry.Pos;
import javafx.geometry.Rectangle2D;
import javafx.print.PageLayout;
import javafx.print.PageOrientation;
import javafx.print.Paper;
import javafx.print.Printer;
import javafx.print.PrinterJob;
import javafx.scene.Node;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.ScrollPane;
import javafx.scene.control.TextArea;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.scene.paint.Color;
import javafx.scene.shape.Path;
import javafx.scene.text.Font;
import javafx.scene.text.FontWeight;
import javafx.scene.text.Text;
import javafx.scene.transform.Scale;
import javafx.stage.PopupWindow;
import javafx.stage.Screen;
import javafx.stage.Stage;
import javafx.stage.StageStyle;
import javafx.stage.Window;
public class Main extends Application {
private PopupWindow keyboard;
private final Rectangle2D visualBounds = Screen.getPrimary().getVisualBounds();
private final Rectangle2D bounds = Screen.getPrimary().getBounds();
private final double taskbarHeight = bounds.getHeight() - visualBounds.getHeight();
@Override
public void start(Stage primaryStage) throws Exception {
primaryStage.setTitle("Binary Name");
Label helloLbl = new Label("Hello");
helloLbl.setAlignment(Pos.CENTER);
helloLbl.setFont(Font.font("Comic Sans MS", FontWeight.BOLD, 68));
helloLbl.setStyle("-fx-background-color: red;padding: 20px;");
helloLbl.setTextFill(Color.web("#ffffff"));
Label myNameLbl = new Label("my name is");
myNameLbl.setAlignment(Pos.CENTER);
myNameLbl.setFont(Font.font("Comic Sans MS", 48));
myNameLbl.setStyle("-fx-background-color: red;padding: 20px;");
myNameLbl.setTextFill(Color.web("#ffffff"));
TextArea nameTxtArea = new TextArea();
nameTxtArea.setWrapText(Boolean.TRUE);
nameTxtArea.getStyleClass().add("center-text-area");
nameTxtArea.setFont(Font.font("Comic Sans MS", 28));
nameTxtArea.setStyle("padding: 20px;");
Button printBtn = new Button("PRINT");
printBtn.setId("ipad-grey");
printBtn.setDisable(Boolean.TRUE);
Button convertBtn = new Button("Convert Now!");
convertBtn.setId("ipad-grey");
convertBtn.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
nameTxtArea.requestFocus();
convertBtn.setDisable(Boolean.TRUE);
printBtn.setDisable(Boolean.FALSE);
}
});
HBox hBox = new HBox(100);
hBox.setAlignment(Pos.CENTER);
hBox.getChildren().addAll(convertBtn, printBtn);
VBox vBox = new VBox(10);
vBox.setAlignment(Pos.TOP_CENTER);
vBox.getChildren().addAll(helloLbl, myNameLbl, nameTxtArea, hBox);
vBox.setStyle("-fx-background-color: red;margin: 20px;");
printBtn.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
nameTxtArea.requestFocus();
// Start printing
print(vBox, nameTxtArea.getText());
convertBtn.setDisable(Boolean.FALSE);
printBtn.setDisable(Boolean.TRUE);
nameTxtArea.setText("");
}
});
Scene scene = new Scene(vBox);
scene.getStylesheets().add(Main.class.getResource("/style.css").toExternalForm());
primaryStage.setScene(scene);
primaryStage.initStyle(StageStyle.UNDECORATED);
primaryStage.setScene(scene);
primaryStage.setX(visualBounds.getMinX());
primaryStage.setY(visualBounds.getMinY());
primaryStage.setWidth(visualBounds.getWidth());
primaryStage.setHeight(visualBounds.getHeight());
adjustTextAreaLayout(nameTxtArea);
primaryStage.show();
// attach keyboard to first node on scene:
Node first = scene.getRoot().getChildrenUnmodifiable().get(0);
if (first != null) {
FXVK.init(first);
FXVK.attach(first);
keyboard = getPopupWindow();
}
nameTxtArea.focusedProperty().addListener((ob, b, b1) -> {
if (keyboard == null) {
keyboard = getPopupWindow();
}
keyboard.setHideOnEscape(Boolean.FALSE);
keyboard.setAutoHide(Boolean.FALSE);
keyboard.centerOnScreen();
keyboard.requestFocus();
keyboard.yProperty().addListener(obs -> {
Platform.runLater(() -> {
Double y = bounds.getHeight() - taskbarHeight - keyboard.getY();
nameTxtArea.setMaxHeight((bounds.getHeight() - y) * 0.4);
nameTxtArea.setMinHeight((bounds.getHeight() - y) * 0.4);
});
});
});
}
public static void main(String[] args) {
launch(args);
}
private void print(Node node1, String text) {
// Create a printer job for the default printer
Printer printer = Printer.getDefaultPrinter();
Paper label = PrintHelper.createPaper("2.5x3.5", 2.5, 3.5, Units.INCH);
PageLayout pageLayout = printer.createPageLayout(label, PageOrientation.LANDSCAPE, Printer.MarginType.EQUAL);
PrinterJob job = PrinterJob.createPrinterJob();
Node node = createFullNode(text);
double scaleX = pageLayout.getPrintableWidth() / node1.getBoundsInParent().getWidth();
double scaleY = pageLayout.getPrintableHeight() / node1.getBoundsInParent().getHeight();
node.getTransforms().add(new Scale(scaleX, scaleY));
if (job != null) {
// Print the node
boolean printed = job.printPage(node);
if (printed) {
// End the printer job
job.endJob();
} else {
// Write Error Message
System.out.println("Printing failed.");
}
} else {
// Write Error Message
System.out.println("Could not create a printer job.");
}
node.getTransforms().remove(node.getTransforms().size() - 1);
}
private PopupWindow getPopupWindow() {
@SuppressWarnings("deprecation")
final Iterator<Window> windows = Window.impl_getWindows();
while (windows.hasNext()) {
final Window window = windows.next();
if (window instanceof PopupWindow) {
if (window.getScene() != null && window.getScene().getRoot() != null) {
Parent root = window.getScene().getRoot();
if (root.getChildrenUnmodifiable().size() > 0) {
Node popup = root.getChildrenUnmodifiable().get(0);
if (popup.lookup(".fxvk") != null) {
FXVK vk = (FXVK) popup.lookup(".fxvk");
// hide the key:
vk.lookup(".hide").setVisible(false);
return (PopupWindow) window;
}
}
}
return null;
}
}
return null;
}
private Node createFullNode(String text) {
Label helloLbl = new Label("Hello");
helloLbl.setAlignment(Pos.CENTER);
helloLbl.setFont(Font.font("Comic Sans MS", FontWeight.BOLD, 68));
helloLbl.setStyle("-fx-background-color: red;padding: 20px;");
helloLbl.setTextFill(Color.web("#ffffff"));
Label myNameLbl = new Label("my name is");
myNameLbl.setAlignment(Pos.CENTER);
myNameLbl.setFont(Font.font("Comic Sans MS", 48));
myNameLbl.setStyle("-fx-background-color: red;padding: 20px;");
myNameLbl.setTextFill(Color.web("#ffffff"));
TextArea nameTxtArea = new TextArea();
nameTxtArea.setWrapText(Boolean.TRUE);
nameTxtArea.setFont(Font.font("Comic Sans MS", 28));
nameTxtArea.setStyle("padding: 20px;");
nameTxtArea.setText(text);
nameTxtArea.getStyleClass().add("center-text-area");
HBox hBox = new HBox(1000);
hBox.setAlignment(Pos.CENTER);
VBox vBox = new VBox(10);
vBox.setAlignment(Pos.CENTER);
vBox.getChildren().addAll(helloLbl, myNameLbl, nameTxtArea, hBox);
vBox.setStyle("-fx-background-color: red;margin: 20px;");
vBox.getStylesheets().add(Main.class.getResource("/style.css").toExternalForm());
return vBox;
}
private void adjustTextAreaLayout(TextArea textArea) {
textArea.applyCss();
textArea.layout();
ScrollPane textAreaScroller = (ScrollPane) textArea.lookup(".scroll-pane");
Text text = (Text) textArea.lookup(".text");
ChangeListener<? super Bounds> listener =
(obs, oldBounds, newBounds) -> centerTextIfNecessary(textAreaScroller, text);
textAreaScroller.viewportBoundsProperty().addListener(listener);
text.boundsInLocalProperty().addListener(listener);
}
private void centerTextIfNecessary(ScrollPane textAreaScroller, Text text) {
double textHeight = text.getBoundsInLocal().getHeight();
double viewportHeight = textAreaScroller.getViewportBounds().getHeight();
double offset = Math.max(0, (viewportHeight - textHeight) / 2 );
text.setTranslateY(offset);
Parent content = (Parent)textAreaScroller.getContent();
for (Node n : content.getChildrenUnmodifiable()) {
if (n instanceof Path) { // caret
n.setTranslateY(offset);
}
}
}
}
您可以按需显示和隐藏虚拟键盘。
您只需提供键盘将附加到的节点,而不需要是TextField。
显然,您展示了能够键入输入控件(TextField、TextArea、...)的虚拟键盘,但我将把这部分留给您。
@Override
public void start(Stage stage) {
...
stage.setScene(scene);
stage.show();
// attach keyboard to first node on scene:
Node first = scene.getRoot().getChildrenUnmodifiable().get(0);
if (first != null) {
FXVK.init(first);
FXVK.attach(first);
}
}
FXVK.detach();
下面的代码片段将查找弹出窗口。至于不推荐的方法,在JavaFX9上,它将是一个公共方法(JavaFX.stage.windows.getwindows()
)。
private PopupWindow getPopupWindow() {
@SuppressWarnings("deprecation")
final Iterator<Window> windows = Window.impl_getWindows();
while (windows.hasNext()) {
final Window window = windows.next();
if (window instanceof PopupWindow) {
if (window.getScene() != null && window.getScene().getRoot() != null) {
Parent root = window.getScene().getRoot();
if (root.getChildrenUnmodifiable().size() > 0) {
Node popup = root.getChildrenUnmodifiable().get(0);
if (popup.lookup(".fxvk") != null) {
FXVK vk = (FXVK) popup.lookup(".fxvk");
return (PopupWindow) window;
}
}
}
return null;
}
}
return null;
}
一旦有了虚拟键盘实例,就可以根据它们的样式类查找它的任何节点。幸运的是,所有的键都分配了styleClass键
,所以您可以轻松地与所有这些键进行交互。至于隐藏键盘的特定键,这个也有特殊
和hide
样式类:
// hide the key:
vk.lookup(".hide").setVisible(false);
完整示例代码:
public class FXVKAlwaysOn extends Application {
@Override
public void start(Stage primaryStage) {
Button btn = new Button();
btn.setText("Say 'Hello World'");
StackPane root = new StackPane();
root.getChildren().add(btn);
Scene scene = new Scene(root, 1280, 600);
primaryStage.setTitle("Hello World!");
primaryStage.setScene(scene);
primaryStage.show();
Node first = scene.getRoot().getChildrenUnmodifiable().get(0);
if (first != null) {
FXVK.init(first);
FXVK.attach(first);
getPopupWindow();
}
}
private PopupWindow getPopupWindow() {
@SuppressWarnings("deprecation")
final Iterator<Window> windows = Window.impl_getWindows();
while (windows.hasNext()) {
final Window window = windows.next();
if (window instanceof PopupWindow) {
if (window.getScene() != null && window.getScene().getRoot() != null) {
Parent root = window.getScene().getRoot();
if (root.getChildrenUnmodifiable().size() > 0) {
Node popup = root.getChildrenUnmodifiable().get(0);
if (popup.lookup(".fxvk") != null) {
FXVK vk = (FXVK) popup.lookup(".fxvk");
// hide the key:
vk.lookup(".hide").setVisible(false);
return (PopupWindow) window;
}
}
}
return null;
}
}
return null;
}
}
null
null 在当前的系统配置中,有没有办法在我的触摸监视器上显示虚拟键盘?例如,告诉键盘它的所有者应用程序在哪里,以便它在正确的监视器上显示?
http://docs.oracle.com/javase/8/javafx/user-interface-tutorial/embedd.htm 有没有人在javafx应用程序中有过虚拟键盘的经验?我需要能够显示正常的键盘或数字键盘时,文本字段是聚焦的。
我用JavaFX设计了一个简单的虚拟键盘,用于一个刽子手风格的游戏。唯一的问题是,我无法获得正确的第二行和第三行的对齐方式,就像真正的键盘设计一样(例如,a键几乎在Q键和W键之间)。 键盘只是使用实现的,网格窗格中每个字符都有一个按钮。 有没有办法插入一点空白?我真的想过堆叠三个,每行一个,然后添加正确的偏移量作为空白文本,但这在我看来有点勉强,所以我想知道是否有一种“更干净”的方法。 以下是我的
有什么方法可以调整JavaFX虚拟键盘子窗口的大小吗? 我指的是虚拟键盘属于的阶段作为一个子窗口,因为它是如何在风景视图中被标记的。 我正在开发一个应用程序,专门使用虚拟键盘在Surface3平板上进行文本输入。由于分辨率(2160x1440),键盘的按钮太短,无法可靠地按在Surface的屏幕上,如图所示,将其调整为1920的宽度:http://i.imgur.com/kp65dlm.png:h