TaleCell

對TableColumn的cell里面弄重新構造
TableColumn的setCellFactory(TextFieldTableCell.forTableColumn());有一些默認的構造。?

或者重寫TableCell類

?

[java]?view plaincopy

tableColumn.setCellFactory(new?Callback<TableColumn<Path,?Number>,?TableCell<Path,?Number>>()?{??

????????????@Override??

????????????public?TableCell<Path,?Number>?call(TableColumn<Path,?Number>?param)?{??

????????????????return?new?MyTableCell<Path,?Number>();????

????????????}??

}??

Tablecell里面不僅只存放文字，還可以存放其它Node,需要重寫TableCell的update(T t,boolean empty)方法編輯單元格可以使用重寫startEdit()和cancelEdit()

[java]?view plaincopy

class?MyTableCell<Path,?Node>?extends?TableCell<Path,?Node>?{??

?????protected?void?updateItem(Node?node,boolean?empty)?{??????????

??????????????super.updateItem(node,?empty);????

??????????????if?(empty||node==null)?{????//tableCell沒有數據或者為空?????????????????????????

????????????????setText(null);????

????????????????setGraphic(null);????

??????????????else?{??????????????????????????????????

???????????????setText(null);????

???????????????setGraphic(node);??//設置Node??

????????????}???

?????}??

?????@Override??

???public?void?startEdit()?{??

???????super.startEdit();????

???????????//?設置編輯狀態????

???????//super.setGraphic(null);??

???????//super.setText(null);??

?????}??

??

??

????@Override??

????public?void?cancelEdit()?{??

????????super.cancelEdit();??

????????//退出編輯狀態??

????????//super.setText(null);????????????

????????//?super.setGraphic(null);??

????}??

} ?

雙擊鼠標監聽

通過tableColumn.setCellFactory(new TaskCellFactory());設置了CellFactory。

TaskCellFactory的內容如下：

[java]?view plaincopy

class?TaskCellFactory?implements?Callback<TableColumn<Task,?String>,?TableCell<Task,?String>>?{??

??

????@Override??

????public?TableCell<Task,?String>?call(TableColumn<Task,?String>?param)?{??

????????TextFieldTableCell<Task,?String>?cell?=?new?TextFieldTableCell<>();??

????????cell.setOnMouseClicked((MouseEvent?t)?->?{??

????????????if?(t.getClickCount()?==?2)?{??

???????????????//雙擊執行的代碼??

????????????}??

????????});????????

????????return?cell;??

????}??

}??

整個實現的核心就在于重點就在于實現 Callback<TableColumn<Task, String>, TableCell<Task, String>> 然后返回JavaFX API自帶的 TextFieldTableCell 。并在call()方法中，為cell增加了雙擊事件的處理。

?

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