JavaFX彩色表行

Question

我有一个表，其中附有行工厂，以对某些行进行着色。问题在于，上下滚动表后，行只会更改颜色。表格启动时我该怎么做才能显示背景色？

此处有一个视频：https://screencast-o-matic.com/watch/cFQYlEqPSv

ObservableList<SupplierProductOTIF> orderData = FXCollections.observableArrayList();

orderTable.setRowFactory(row -> new TableRow<SupplierProductOTIF>() {

    @Override
    public void updateItem(SupplierProductOTIF item, boolean empty) {
        super.updateItem(item, empty);

        if (item == null || empty) {
            setStyle("");
        } else {
            if (item.isException()) {
                //We apply now the changes in all the cells of the row
                for (int i = 0; i < getChildren().size(); i++) {
                    ((Labeled) getChildren().get(i)).setStyle("-fx-background-color: rgba(255, 0, 0, .25);");
                }
            } else if (item.getQtyToOrder() > 0) {
                //We apply now the changes in all the cells of the row
                for (int i = 0; i < getChildren().size(); i++) {
                    ((Labeled) getChildren().get(i)).setStyle("-fx-background-color: rgba(0, 255, 0, .25);");
                }
            } else {
                for (int i = 0; i < getChildren().size(); i++) {
                    ((Labeled) getChildren().get(i)).setStyle("");
                }
                setStyle("");
            }
        }
    }
});

orderTable.setItems(orderData);

for (SupplierProductOTIF product : supplier.getOtifSupplierData()) {
    if(product.getQtyToOrder() > 0 || product.isException()) {
       orderData.add(0, product);
    } else {
       orderData.add(product);
    }
}

编辑：这是我班上的完整代码

public class ReplenishmentPopupController extends ReportController implements Initializable {

    private SupplierOTIF supplier;
    private SimpleDateFormat df = new SimpleDateFormat("EEE, d MMM yyyy");

    @FXML
    private TableView orderTable;

    @FXML
    private TableColumn productName;
    @FXML
    private TableColumn sku;
    @FXML
    private TableColumn currentStock;
    @FXML
    private TableColumn maxLeadTime;
    @FXML
    private TableColumn qtyToOrder;
    @FXML
    private TableColumn qtyOnOrder;
    @FXML
    private TableColumn nextOrderDate;
    @FXML
    private TableColumn<SupplierProductOTIF, LocalDate> stockUntilDate;
    @FXML
    private TableColumn daysStock;
    @FXML
    private TableColumn averageStockDailySales;
    @FXML
    private TableColumn daysOfStockToHold;
    @FXML
    private TableColumn daysOfStockToOrder;
    @FXML
    private TableColumn incost;
    @FXML
    private TableColumn supplierCost;
    @FXML
    private TableColumn orderCost;
    @FXML
    private TableColumn supplierPreference;
    @FXML
    private TableColumn productStatus;
    @FXML
    private TableColumn boxQty;
    @FXML
    private TableColumn minimumOrderQty;
    @FXML
    private TableColumn qtyRequired;
    @FXML
    private TableColumn rrs;
    @FXML
    private TableColumn rank;
    @FXML
    private Button raisePurchaseOrderButton;
    @FXML
    private Label supplierLabel;
    @FXML
    private Label orderValueLabel;

    private ObservableList<SupplierProductOTIF> orderData = FXCollections.observableArrayList();

    @Override
    public void initialize(URL url, ResourceBundle rb) {
        initOrderTable();
    }

    public void initOrderTable() {

        orderTable.setEditable(true);

        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd/MM/yyyy");

        sku.setCellValueFactory(new PropertyValueFactory("sku"));
        sku.prefWidthProperty().bind(orderTable.widthProperty().multiply(0.05));

        productName.setCellValueFactory(new PropertyValueFactory("name"));
        productName.prefWidthProperty().bind(orderTable.widthProperty().multiply(0.1));

        currentStock.setCellValueFactory(new PropertyValueFactory("freeStock"));
        currentStock.prefWidthProperty().bind(orderTable.widthProperty().multiply(0.05));

        averageStockDailySales.setCellValueFactory(new PropertyValueFactory("averageForecastDailySales"));
        averageStockDailySales.prefWidthProperty().bind(orderTable.widthProperty().multiply(0.05));
        //averageStockDailySales.setVisible(false);

        daysStock.setCellValueFactory(new PropertyValueFactory("daysStock"));
        daysStock.prefWidthProperty().bind(orderTable.widthProperty().multiply(0.05));

        stockUntilDate.setCellValueFactory(new PropertyValueFactory("stockUntilDate"));
        stockUntilDate.prefWidthProperty().bind(orderTable.widthProperty().multiply(0.1));
        stockUntilDate.setCellFactory(tc -> new TableCell<SupplierProductOTIF, LocalDate>() {
            @Override
            protected void updateItem(LocalDate date, boolean empty) {
                super.updateItem(date, empty);
                if (empty || date == null) {
                    setText(null);
                } else {
                    setText(formatter.format(date));
                }
            }
        });

        maxLeadTime.setCellValueFactory(new PropertyValueFactory("maxLeadTime"));
        maxLeadTime.prefWidthProperty().bind(orderTable.widthProperty().multiply(0.05));

        qtyToOrder.setCellValueFactory(new PropertyValueFactory("qtyToOrder"));
        qtyToOrder.prefWidthProperty().bind(orderTable.widthProperty().multiply(0.075));
        qtyToOrder.setCellFactory(TextFieldTableCell.forTableColumn(new StringConverter<Integer>() {

            @Override
            public String toString(Integer object) {
                return object.toString();
            }

            @Override
            public Integer fromString(String string) {
                return Integer.parseInt(string);
            }

        }));

        qtyToOrder.setOnEditCommit(
            new EventHandler<CellEditEvent<SupplierProductOTIF, Integer>>() {
                @Override
                public void handle(CellEditEvent<SupplierProductOTIF, Integer> t) {
                    ((SupplierProductOTIF) t.getTableView().getItems().get(
                            t.getTablePosition().getRow())).setQtyToOrder(t.getNewValue());
                    updatePurchaseOrderValue();
            }
        });

        daysOfStockToHold.setCellValueFactory(new PropertyValueFactory("daysOfStockRequired"));
        daysOfStockToHold.prefWidthProperty().bind(orderTable.widthProperty().multiply(0.05));

        qtyOnOrder.setCellValueFactory(new PropertyValueFactory("qtyOutStanding"));
        qtyOnOrder.prefWidthProperty().bind(orderTable.widthProperty().multiply(0.075));
        //qtyOnOrder.setVisible(false);

        minimumOrderQty.setCellValueFactory(new PropertyValueFactory("minimumOrderQty"));
        minimumOrderQty.prefWidthProperty().bind(orderTable.widthProperty().multiply(0.05));
        //minimumOrderQty.setVisible(false);

        boxQty.setCellValueFactory(new PropertyValueFactory("boxQty"));
        boxQty.prefWidthProperty().bind(orderTable.widthProperty().multiply(0.05));

        qtyRequired.setCellValueFactory(new PropertyValueFactory("qtyRequired"));
        qtyRequired.prefWidthProperty().bind(orderTable.widthProperty().multiply(0.05));

        daysOfStockToOrder.setCellValueFactory(new PropertyValueFactory("daysOfStockToOrder"));
        daysOfStockToOrder.prefWidthProperty().bind(orderTable.widthProperty().multiply(0.05));
        //daysOfStockToOrder.setVisible(false);

        incost.setCellValueFactory(new PropertyValueFactory("incost"));
        incost.prefWidthProperty().bind(orderTable.widthProperty().multiply(0.05));
        //incost.setVisible(false);

        supplierCost.setCellValueFactory(new PropertyValueFactory("supplierCost"));
        supplierCost.prefWidthProperty().bind(orderTable.widthProperty().multiply(0.05));
        supplierCost.setVisible(false);

        orderCost.setCellValueFactory(new PropertyValueFactory("orderCost"));
        orderCost.prefWidthProperty().bind(orderTable.widthProperty().multiply(0.05));
        //orderCost.setVisible(false);

        supplierPreference.setCellValueFactory(new PropertyValueFactory("supplierPreference"));
        supplierPreference.prefWidthProperty().bind(orderTable.widthProperty().multiply(0.05));
        supplierPreference.setVisible(false);

        productStatus.setCellValueFactory(new PropertyValueFactory("productStatus"));
        productStatus.prefWidthProperty().bind(orderTable.widthProperty().multiply(0.05));

        rrs.setCellValueFactory(new PropertyValueFactory("rank"));
        rrs.prefWidthProperty().bind(orderTable.widthProperty().multiply(0.05));

        rank.setCellValueFactory(new PropertyValueFactory("productRanking"));
        rank.prefWidthProperty().bind(orderTable.widthProperty().multiply(0.05));

        orderTable.setRowFactory(row -> new TableRow<SupplierProductOTIF>() {

            @Override
            public void updateItem(SupplierProductOTIF item, boolean empty) {
                super.updateItem(item, empty);

                if (item == null || empty) {
                    setStyle("");
                } else {
                    if (item.isException()) {
                        //We apply now the changes in all the cells of the row
                        for (int i = 0; i < getChildren().size(); i++) {
                            ((Labeled) getChildren().get(i)).setStyle("-fx-background-color: rgba(255, 0, 0, .25);");
                        }
                    } else if (item.getQtyToOrder() > 0) {
                        //We apply now the changes in all the cells of the row
                        for (int i = 0; i < getChildren().size(); i++) {
                            ((Labeled) getChildren().get(i)).setStyle("-fx-background-color: rgba(0, 255, 0, .25);");
                        }
                    } else if (item.getQtyToOrder() == 0 && item.getFreeStock() <= 0) {
                        //We apply now the changes in all the cells of the row
                        for (int i = 0; i < getChildren().size(); i++) {
                            ((Labeled) getChildren().get(i)).setStyle("-fx-background-color: rgba(0, 0, 255, .25);");
                        }
                    } else {
                        for (int i = 0; i < getChildren().size(); i++) {
                            ((Labeled) getChildren().get(i)).setStyle("");
                        }
                        setStyle("");
                    }
                }
            }
        });

    }

    public SupplierOTIF getSupplier() {
        return supplier;
    }

    public void setSupplier(SupplierOTIF supplier) {
        this.supplier = supplier;
    }

    public void calculatePurchaseOrder() {

        supplier.calculateNumberOfDaysStock();

        supplier.calculateQTYToOrder();

        for (SupplierProductOTIF product : supplier.getOtifSupplierData()) {
            if (product.getSupplierPreference() == 1) {
                if (product.getQtyToOrder() > 0 || product.isException()) {
                    orderData.add(0, product);
                } else {
                    orderData.add(product);
                }
            }
        }

        orderTable.setItems(orderData);

    }

    public void updatePurchaseOrderValue() {
        double totalValue = 0.0;
        for (SupplierProductOTIF product : orderData) {
            totalValue += (product.getQtyToOrder() * product.getSupplierCost());
        }
        orderValueLabel.setText("Order Value: £" + SalesHelper.round(new BigDecimal(totalValue), 2, BigDecimal.ROUND_HALF_UP));
    }

    @Override
    public void loadAndShowData() throws Exception {

        calculatePurchaseOrder();

        updatePurchaseOrderValue();

    }

}