java - 向 TableView 添加不同的按钮

Question

我已经发现如何在行的 TableView 中插入按钮，但我不确定如何为该按钮添加不同的值:

column
    .setCellFactory(new Callback<TableColumn<GuiObject, Boolean>, TableCell<GuiObject, Boolean>>() {
                    @Override
                    public TableCell<GuiObject, Boolean> call(
                            TableColumn<GuiObject, Boolean> p) {

                        return new ButtonCell();
                    }

                });

其中 ButtonCell 是 TableCell<GuiObject, Boolean> 的自行实现按钮，但我希望能够根据我要插入的行动态插入不同的按钮。

Answer 1

如果你像这样从java访问TableView:

@FXML
TableView myTable;

@Override
public void initialize(URL url, ResourceBundle rb) {
    TableColumn<Item, String> firstColumn = new TableColumn<>("First Column");
    firstColumn.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<Item, String>, ObservableValue<String>>() {
        @Override
        public ObservableValue<String> call(TableColumn.CellDataFeatures<Item, String> p) {
            return new ReadOnlyObjectWrapper(p.getValue().column1);
        }
    });

    TableColumn<Item, String> secondColumn = new TableColumn<>("Second Column");
    secondColumn.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<Item, String>, ObservableValue<String>>() {
        @Override
        public ObservableValue<String> call(TableColumn.CellDataFeatures<Item, String> p) {
            return new ReadOnlyObjectWrapper(p.getValue().column2);
        }
    });

    TableColumn<Item, Button> buttonCol = new TableColumn<>("ButtonColumn");
    buttonCol.setSortable(false);
    buttonCol.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<Item, Button>, ObservableValue<Button>>() {
        @Override
        public ObservableValue<Button> call(TableColumn.CellDataFeatures<Item, Button> features) {
            return new ReadOnlyObjectWrapper(features.getValue().button);
        }
    });
    myTable.getColumns().add(buttonCol);
    myTable.getColumns().add(firstColumn);
    myTable.getColumns().add(secondColumn);
    myTable.getItems().add(new Item("Test 1", "Test 1", new Button("Test 1"), new EventHandler<ActionEvent>() {
        @Override
        public void handle(ActionEvent t) {
            //ON ACTION CODE HERE
            System.out.println("TEST 1 CLICKED!");
        }
    }));
    myTable.getItems().add(new Item("Test 2", "Test 2", new Button("Test 2"), new EventHandler<ActionEvent>() {
        @Override
        public void handle(ActionEvent t) {
            //ON ACTION CODE HERE
            System.out.println("TEST 2 BUTTON CLICKED");
        }
    }));
}

以及 Item 类:

public class Item {

    public String column1, column2;
    public Button button;

    public Item(String column1, String column2, Button b) {
        this.column1 = column1;
        this.column2 = column2;
        button = b;
    }
}

证明它有效: