How to create a reordering tableview in JavaFX

I have a JavaFX tableview I want to allow users to click and drag to reorder table rows I can't seem to find any way to do this, but it seems to be very common in GUI

Solution

Here are some code to reorder rows in listview by dragging rows

Drag to reorder

The implementation of tableview is somewhat similar

import javafx.application.Application;
import javafx.collections.*;
import javafx.geometry.*;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.image.*;
import javafx.scene.input.*;
import javafx.scene.layout.V@R_113_2419@;
import javafx.stage.Stage;

import java.util.*;

public class ListOrganizer extends Application {
    private static final String PREFIX =
            "http://icons.iconarchive.com/icons/jozef89/origami-birds/72/bird";

    private static final String SUFFIX =
            "-icon.png";

    private static final ObservableList<String> birds = FXCollections.observableArrayList(
            "-black","-blue","-red","-red-2","-yellow","s-green","s-green-2"
    );

    private static final ObservableList<Image> birdImages = FXCollections.observableArrayList();

    @Override
    public void start(Stage stage) throws Exception {
        birds.forEach(bird -> birdImages.add(new Image(PREFIX + bird + SUFFIX)));

        ListView<String> birdList = new ListView<>(birds);
        birdList.setCellFactory(param -> new BirdCell());
        birdList.setPrefWidth(180);

        V@R_113_2419@ layout = new V@R_113_2419@(birdList);
        layout.setPadding(new Insets(10));

        stage.setScene(new Scene(layout));
        stage.show();
    }

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

    private class BirdCell extends ListCell<String> {
        private final ImageView imageView = new ImageView();

        public BirdCell() {
            ListCell thisCell = this;

            setContentDisplay(ContentDisplay.GRAPHIC_ONLY);
            setAlignment(Pos.CENTER);

            setOnDragDetected(event -> {
                if (getItem() == null) {
                    return;
                }

                ObservableList<String> items = getListView().getItems();

                Dragboard dragboard = startDragAndDrop(TransferMode.MOVE);
                ClipboardContent content = new ClipboardContent();
                content.putString(getItem());
                dragboard.setDragView(
                    birdImages.get(
                        items.indexOf(
                            getItem()
                        )
                    )
                );
                dragboard.setContent(content);

                event.consume();
            });

            setOnDragOver(event -> {
                if (event.getGestureSource() != thisCell &&
                       event.getDragboard().hasString()) {
                    event.acceptTransferModes(TransferMode.MOVE);
                }

                event.consume();
            });

            setOnDragEntered(event -> {
                if (event.getGestureSource() != thisCell &&
                        event.getDragboard().hasString()) {
                    setOpacity(0.3);
                }
            });

            setOnDragExited(event -> {
                if (event.getGestureSource() != thisCell &&
                        event.getDragboard().hasString()) {
                    setOpacity(1);
                }
            });

            setOnDragDropped(event -> {
                if (getItem() == null) {
                    return;
                }

                Dragboard db = event.getDragboard();
                boolean success = false;

                if (db.hasString()) {
                    ObservableList<String> items = getListView().getItems();
                    int draggedIdx = items.indexOf(db.getString());
                    int thisIdx = items.indexOf(getItem());

                    Image temp = birdImages.get(draggedIdx);
                    birdImages.set(draggedIdx,birdImages.get(thisIdx));
                    birdImages.set(thisIdx,temp);

                    items.set(draggedIdx,getItem());
                    items.set(thisIdx,db.getString());

                    List<String> itemscopy = new ArrayList<>(getListView().getItems());
                    getListView().getItems().setAll(itemscopy);

                    success = true;
                }
                event.setDropCompleted(success);

                event.consume();
            });

            setOnDragDone(DragEvent::consume);
        }

        @Override
        protected void updateItem(String item,boolean empty) {
            super.updateItem(item,empty);

            if (empty || item == null) {
                setGraphic(null);
            } else {
                imageView.setImage(
                    birdImages.get(
                        getListView().getItems().indexOf(item)
                    )
                );
                setGraphic(imageView);
            }
        }
    }

    // Iconset Homepage: http://jozef89.deviantart.com/art/Origami-Birds-400642253
    // License: CC Attribution-Noncommercial-No Derivate 3.0
    // Commercial usage: Not allowed    

}