private class InnerGridCell {

        private static final int COLUMN = 3;
        private static final int ROW = 3;

        protected void updateItem(ArrayList<Image> imagesInGroup, boolean empty) {
            if (!empty) {
                final ViewInnerGrid viewInnerGrid = new ViewInnerGrid();

                viewInnerGrid.setData();
                viewInnerGrid.groupName.setText(imagesInGroup.get(0).getIdG().getNameG());

                viewInnerGrid.gridPane.setCursor(Cursor.HAND);
                viewInnerGrid.gridPane.setOnMouseClicked(event -> {
                    if (event.getClickCount() == 2) {
                        openGroupFolder();
                    }
                });

                int column = 0;
                int row = 0;

                for (Image image:
                        imagesInGroup) {
                    viewInnerGrid.imageView = new ImageView("file   :" + image.getAbsPathI());
                    viewInnerGrid.imageView.setFitWidth(35);
                    viewInnerGrid.imageView.setFitHeight(35);
                    viewInnerGrid.imageView.setPickOnBounds(true);

                    GridPane.setConstraints(viewInnerGrid.imageView, column, row);
                    GridPane.setHalignment(viewInnerGrid.imageView, HPos.CENTER);
                    GridPane.setValignment(viewInnerGrid.imageView, VPos.CENTER);
                    column++;
                    if (column == COLUMN && row == ROW) {
                        break;
                    } else if (column == COLUMN) {
                        row++;
                        column = 0;
                    }

                    viewInnerGrid.gridPane.getChildren().add(viewInnerGrid.imageView);
                }


            }
        }

    }

    private class ViewInnerGrid {

        private AnchorPane anchorPane;

        private Label groupName;

        private GridPane gridPane;

        private ColumnConstraints column;

        private RowConstraints row;

        private ImageView imageView;

        private void setData() {
            anchorPane = new AnchorPane();
            anchorPane.setPrefSize(153, 162);

            groupName = new Label("Unnamed");
            groupName.setPrefSize(133, 33);
            groupName.setLayoutX(10);
            groupName.setLayoutY(137);

            gridPane = new GridPane();
            gridPane.setPrefSize(200, 160);
            gridPane.setLayoutY(14);
            gridPane.setVgap(5);

            column = new ColumnConstraints();
            column.setHgrow(Priority.SOMETIMES);
            column.setPrefWidth(100);

            row = new RowConstraints();
            row.setVgrow(Priority.SOMETIMES);
            row.setPrefHeight(30);

            gridPane.getColumnConstraints().addAll(column, column, column);
            gridPane.getRowConstraints().addAll(row, row, row);

            AnchorPane.setRightAnchor(groupName, 10.0);
            AnchorPane.setBottomAnchor(groupName, 2.0);
            AnchorPane.setLeftAnchor(groupName, 10.0);

            AnchorPane.setTopAnchor(gridPane, 5.0);
            AnchorPane.setRightAnchor(gridPane, 5.0);
            AnchorPane.setBottomAnchor(gridPane, 30.0);
            AnchorPane.setLeftAnchor(gridPane, 5.0);

            anchorPane.getChildren().addAll(gridPane, groupName);
        }
    }