javafx-8 – Page 2 – Tarik Billa

How to right align a button in Java FX toolbar

May 15, 2023 by Tarik

Add a pane with no content which always grows to fit available space between the left aligned tools in the bar and right aligned ones. <?xml version=”1.0″ encoding=”UTF-8″?> <?import javafx.scene.control.*?> <?import javafx.scene.layout.*?> <ToolBar prefHeight=”40.0″ prefWidth=”318.0″ xmlns:fx=”http://javafx.com/fxml/1″ xmlns=”http://javafx.com/javafx/8″> <Button text=”Apples” /> <Button text=”Oranges” /> <Pane HBox.hgrow=”ALWAYS” /> <Button text=”Help” /> </ToolBar>

Value Change Listener for JavaFX’s TextField

April 22, 2023 by Tarik

Add a listener to the TextField’s textProperty: TextField textField = new TextField(); textField.textProperty().addListener((observable, oldValue, newValue) -> { System.out.println(“textfield changed from ” + oldValue + ” to ” + newValue); });

AutoComplete ComboBox in JavaFX

April 3, 2023 by Tarik

First, you’ll have to create this class in your project: import javafx.collections.FXCollections; import javafx.collections.ObservableList; import javafx.event.EventHandler; import javafx.scene.control.ComboBox; import javafx.scene.input.KeyCode; import javafx.scene.input.KeyEvent; public class FxUtilTest { public interface AutoCompleteComparator<T> { boolean matches(String typedText, T objectToCompare); } public static<T> void autoCompleteComboBoxPlus(ComboBox<T> comboBox, AutoCompleteComparator<T> comparatorMethod) { ObservableList<T> data = comboBox.getItems(); comboBox.setEditable(true); comboBox.getEditor().focusedProperty().addListener(observable -> { if (comboBox.getSelectionModel().getSelectedIndex() < … Read more

JavaFX: Stage close handler

March 29, 2023 by Tarik

If you have a look at the life-cycle of the Application class: The JavaFX runtime does the following, in order, whenever an application is launched: Constructs an instance of the specified Application class Calls the init() method Calls the start(javafx.stage.Stage) method Waits for the application to finish, which happens when either of the following occur: … Read more

How perform task on JavaFX TextField at onfocus and outfocus?

March 28, 2023 by Tarik

I thought it might be helpful to see an example which specifies the ChangeListener as an anonymous inner class like scottb mentioned. TextField yourTextField = new TextField(); yourTextField.focusedProperty().addListener(new ChangeListener<Boolean>() { @Override public void changed(ObservableValue<? extends Boolean> arg0, Boolean oldPropertyValue, Boolean newPropertyValue) { if (newPropertyValue) { System.out.println(“Textfield on focus”); } else { System.out.println(“Textfield out focus”); } … Read more

Remove the default ‘no content in table’ text for empty javafx table

March 25, 2023 by Tarik

You are correct in that the TableView control does not have a String setter method that directly manipulates the text shown when the table is empty. What you will want to do instead is use the TableView’s placeholder property which can be set to any object of type Node. For example… myTableView.setPlaceholder(new Label(“My table is … Read more

How to avoid Not on FX application thread; currentThread = JavaFX Application Thread error?

March 11, 2023 by Tarik

Calling Platform.runLater(new Runnable() { @Override public void run() { // do your GUI stuff here } }); will fix it.

Detect doubleclick on row of TableView JavaFX

March 1, 2023 by Tarik

TableView<MyType> table = new TableView<>(); //… table.setRowFactory( tv -> { TableRow<MyType> row = new TableRow<>(); row.setOnMouseClicked(event -> { if (event.getClickCount() == 2 && (! row.isEmpty()) ) { MyType rowData = row.getItem(); System.out.println(rowData); } }); return row ; }); Here is a complete working example: import java.util.Random; import java.util.function.Function; import javafx.application.Application; import javafx.beans.property.IntegerProperty; import javafx.beans.property.SimpleIntegerProperty; import … Read more

JavaFX 2.1 TableView refresh items

February 27, 2023 by Tarik

Since JavaFX 8u60 you can use(assuming tableView is an instance of TableView class): tableView.refresh(); From the documentation: Calling refresh() forces the TableView control to recreate and repopulate the cells necessary to populate the visual bounds of the control. In other words, this forces the TableView to update what it is showing to the user. This … Read more

How to close a JavaFX application on window close?

January 24, 2023 by Tarik

The application automatically stops when the last Stage is closed. At this moment, the stop() method of your Application class is called, so you don’t need an equivalent to setDefaultCloseOperation() If you want to stop the application before that, you can call Platform.exit(), for example in your onCloseRequest call. You can have all these information … Read more