const Switch({
  Key? key,
  required this.value,//當前開關狀態
  required this.onChanged,// 改變狀態回調
  this.activeColor,// 開啟全部顏色
  this.activeTrackColor,// 開啟軌道的顏色
  this.inactiveThumbColor,//關閉滑塊顏色
  this.inactiveTrackColor,// 關閉軌道顏色
  this.activeThumbImage,// 開啟滑塊圖片
  this.onActiveThumbImageError,// 開啟滑塊圖片加載失敗觸發
  this.inactiveThumbImage,// 關閉滑塊圖片
  this.onInactiveThumbImageError,// 關閉滑塊圖片加載失敗觸發
  this.thumbColor,// 可以通過不同狀態設置滑塊顏色
  this.trackColor,// 可以通過不同狀態設置軌道顏色
  this.materialTapTargetSize,//設置組件的最小大小
  this.dragStartBehavior = DragStartBehavior.start,// 處理手勢拖拽行為
  this.mouseCursor,//設置鼠標停留狀態 app用不到
  this.focusColor,// 獲取焦點顏色
  this.hoverColor,//指針懸停顏色 
  this.overlayColor,// 設置按壓滑動覆蓋上面的顏色
  this.splashRadius,// 設置點擊滑動覆蓋圓環的半徑
  this.focusNode,//焦點控制
  this.autofocus = false,// 是否自動獲取焦點

Switch(
    // activeColor: Colors.blue,
    activeTrackColor: Colors.red,
    inactiveTrackColor: Colors.green,
    // inactiveThumbColor: Colors.yellow,
    materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
    dragStartBehavior: DragStartBehavior.start,
    activeThumbImage: AssetImage("images/lbxx.png"),
    inactiveThumbImage: AssetImage("images/lbxx.png"),
    value: _switchSelected,
    onChanged: (value) {
      setState(() {
        _switchSelected = value;
      });
    }),

const Radio<T>({
  Key? key,
  required this.value,//單選按鈕的值
  required this.groupValue,//當前選中的值
  required this.onChanged,//選中這個按鈕的回調
  this.mouseCursor,// 鼠標懸停狀態
  this.toggleable = false,//點擊已選中按鈕是否調用onChanged回調
  this.activeColor,// 選項按鈕顏色
  this.fillColor,//設置單選框不同狀態的的顏色
  this.focusColor,// 獲取焦點顏色
  this.hoverColor,//指針懸停顏色
  this.overlayColor,//按壓覆蓋顏色
  this.splashRadius,//按壓覆蓋顏色的半徑
  this.materialTapTargetSize,//組件最小大小
  this.visualDensity,//組件的緊湊程度
  this.focusNode,//焦點
  this.autofocus = false,//是否自動獲取焦點
})

Column(
  children: [
_radioCheckBox(_dataList[0]),
_radioCheckBox(_dataList[1]),
_radioCheckBox(_dataList[2]),
_radioCheckBox(_dataList[3])
  ],
),
Row _radioCheckBox(FMRadioBean fmRadioBean) {
  return Row(
    children: [
      Radio<FMRadioBean>(
          visualDensity: VisualDensity(
              horizontal: VisualDensity.minimumDensity,
              vertical: VisualDensity.minimumDensity),
          value: fmRadioBean,
          // activeColor: Colors.red,
          fillColor: MaterialStateProperty.resolveWith((state) {
            if (state.contains(MaterialState.selected)) {
              return Colors.red;
            } else {
              return Colors.blue;
            }
          }),
          focusColor: Colors.orange,
          groupValue: groupValue,
          toggleable: false,
          onChanged: (value) {
            setState(() {
              groupValue = fmRadioBean;
              radioText = fmRadioBean.text;
            });
          }),
      Text(fmRadioBean.text)
    ],
  );
}
class FMRadioBean {
  int index;
  String text;
  bool isSelect;
  FMRadioBean(this.index, this.text, this.isSelect);
}

const Checkbox({
  Key? key,
  required this.value,// 是否被選中
  this.tristate = false,//復選框value是否可以為null
  required this.onChanged,// 選中回調
  this.mouseCursor,// 鼠標指針狀態
  this.activeColor,// 選中顏色
  this.fillColor,// 不同狀態顏色設置
  this.checkColor,// 對勾顏色
  this.focusColor,// 獲取焦點顏色
  this.hoverColor,// 指針懸停顏色
  this.overlayColor,// 按壓覆蓋顏色
  this.splashRadius,// 按壓覆蓋半徑
  this.materialTapTargetSize,//最小大小
  this.visualDensity,// 組件緊湊程度
  this.focusNode,
  this.autofocus = false,
  this.shape,// 自定義選項框樣式
  this.side,// 自定義選項框邊框樣式
}) 

Column(
  children: [
    _checkCheckBox(_dataList[0]),
    _checkCheckBox(_dataList[1]),
    _checkCheckBox(_dataList[2]),
    _checkCheckBox(_dataList[3])
  ],
),
Text(_checkText.toString())

Row _checkCheckBox(FMRadioBean fmRadioBean) {
  return Row(
    children: [
      Checkbox(
          visualDensity: VisualDensity(
              horizontal: VisualDensity.minimumDensity,
              vertical: VisualDensity.minimumDensity),
          value: fmRadioBean.isSelect,
          activeColor: Colors.blue,
          checkColor: Colors.white,
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.all(Radius.circular(6))
          ),
          side: BorderSide(color: Colors.black,width: 2,style: BorderStyle.solid),
          onChanged: (value) {
            setState(() {
              if (value == true) {
                fmRadioBean.isSelect = true;
                _checkText.add(fmRadioBean.text);
              } else {
                fmRadioBean.isSelect = false;
                _checkText.remove(fmRadioBean.text);
              }
            });
          }),
      Text(fmRadioBean.text)
    ],
  );
}