场景1及其Scene1Controller!它有一个文本字段(客户名称)和一个按钮!
单击场景1中的按钮时,将出现屏幕键盘而不关闭场景!
屏幕键盘上有它自己的控制器!
屏幕键盘有一个文本字段和完整的键盘
在屏幕键盘的文本字段中键入“stackoverflow”!
在屏幕键盘输入后,如何将屏幕键盘的文本字段值检索到场景1的客户名称字段?
场景1:
<TextField fx:id="CustomerName" layoutX="14.0" layoutY="75.0" onAction="#TextBoxTextChanged" prefHeight="29.0" prefWidth="254.0"/>
<Button fx:id="OnScreenKeyBoardButton" layoutX="268.0" layoutY="75.0" mnemonicParsing="false" onAction="#ButtonNameClick" prefHeight="29.0" text="..." />
屏幕键盘:
所有的钥匙和
输入按钮代码:
<Button fx:id="enterButton" layoutX="796.0" layoutY="210.0" minHeight="18.8" mnemonicParsing="false" prefHeight="40.0" prefWidth="90.0" text="Enter" onAction="#ButtonEnterClick"/>
场景1控制器:
@FXML
public void ButtonNameClick(final ActionEvent event)
{
//opens on-screen keyboard
}
屏幕键盘控制器:
@FXML
public void ButtonEnterClick(final ActionEvent event)
{
//code to be written to get the text field of the on-screen keyboard into the textfield of scene 1
}
答案 0 :(得分:3)
只需在键盘控制器中创建一个属性来表示文本,然后从“Screen1Controller”中观察它:
public class KeyboardController {
private StringProperty text = new SimpleStringProperty(this, "text", "");
public StringProperty textProperty() {
return text ;
}
public String getText() {
return text.get();
}
public void setText(String text) {
this.text.set(text);
}
@FXML
public void buttonEnterClick(ActionEvent event) {
text.set(// text from keyboard) ;
}
// ... everything else as before
}
和
public class Screen1Controller {
@FXML
private TextField customerName ;
// ...
@FXML
public void buttonNameClick(ActionEvent event) {
FXMLLoader loader = new FXMLLoader(getClass().getResource("Keyboard.fxml"));
Parent parent = loader.load();
KeyboardController controller = (KeyboardContoller) loader.getController();
controller.textProperty().addListener(new ChangeListener<String>() {
@Override
public void changed(ObservableValue<? extends String> obs, String oldValue, String newValue) {
// update text field with newValue:
customerName.setText(newValue);
}
});
// show keyboard ...
}
// other code...
}