DateTimePicker组件实现不循环滚动

@Builder
function CustomPicker($$: PickerClass) {
  TextPicker({ range: $$.range, selected: $$.selected })
    .layoutWeight(1)
    .canLoop($$.option?.isLoop ?? false)
    .visibility(isVisibility($$.dateIndex, $$.option?.timeFormat))
    .onChange((value: string | string[], index: number | number[]) => {
      $$.callback($$.dateIndex, value, index)
    })
}

Column({ space: 24 }) {
  Text(this.selectDate.toString() + '\n' + Lunar.fromDate(this.selectDate).toString())
    .fontSize(20)
    .fontColor(Color.Red)
    .textAlign(TextAlign.Center)

  Column({ space: 12 }) {
    Text('页面形式展示日期时间选择器')
      .fontSize(20)
      .fontWeight(FontWeight.Bold)

    // 直接在页面上调用该组件
    DateTimePicker({
      data: {
        startYear: 2000,
        endYear: 2050,
        resultCb: this.updateSelectData,
      },
      option: {
        timeFormat: this.timeFormat
      }
    })
  }
  .borderWidth(2)
  .borderColor(Color.Gray)
  .borderRadius(8)

  Button('点击底部弹窗形式唤起日期时间选择器')
    .onClick(this.openDateTimePicker)
}

export function DateTimePickerDialog(uiContext: UIContext, param: DateTimePickerParam,
  dialogOptions?: promptAction.BaseDialogOptions) {
  const now: number = Date.now();
  let contentNode = new ComponentContent(uiContext, wrapBuilder(DateTimePickerDialogBuilder), {
    node: now,
    param: param
  } as DateTimePickerDialogParam);
  uiContext.getPromptAction().openCustomDialog(contentNode, dialogOptions);
  mapContext.set(now, { context: uiContext, content: contentNode });
}

DateTimePickerDialog(this.getUIContext(), {
  data: {
    startYear: 2000,
    endYear: 2050,
    selectedDate: this.selectDate,
    resultCb: this.updateSelectData,
  },
  option: {
    timeFormat: TimeFormat.Second
  },
  style: {
    backgroundColor: Color.White,
    borderRadius: 8,
    borderColor: Color.Orange,
    borderWidth: 2,
    margin: 4
  }
} as DateTimePickerParam, {
  alignment: DialogAlignment.Bottom,
  offset: { dx: 0, dy: -40 },
});

DatePickerNoCycle                           // entry类型
|---pages
|   |---Index                               // 入口页面
dateTimePicker                              // har包类型
|---common
|   |---Constants                           // 常量定义
|---interface
|   |---DateTimePickerInterface             // 日期时间选择器参数接口
|---pages
|   |---DateTimePicker                      // 日期时间选择器
|---utils
|   |---DateTimeBase                        // 日期时间基类
|   |---DateTimeLunar                       // 日期时间农历类
|   |---DateTimeRange                       // 日期时间范围
|   |---DateTimeSolar                       // 日期时间公历类