1，属性名称：sheetAllowedDetents

原库描述：Describes heights where a sheet can rest.Works only when presentation is set to formSheet.
不支持原因：需要presentation设置为formSheet才生效，而HarmonyOS不支持formSheet。

2，属性名称：sheetElevation

原库描述：Works only when presentation is set to formSheet.Integer value describing elevation of the sheet, impacting shadow on the top edge of the sheet.
不支持原因：需要presentation设置为formSheet才生效，而HarmonyOS不支持formSheet。

3，属性名称：sheetExpandsWhenScrolledToEdge

原库描述：Works only when presentation is set to formSheet.Whether the sheet should expand to larger detent when scrolling.Please note that for this interaction to work, the ScrollView must be "first-subview-chain" descendant of the Screen component.
不支持原因：需要presentation设置为formSheet才生效，而HarmonyOS不支持formSheet。

4，属性名称：sheetCornerRadius

原库描述：Works only when presentation is set to formSheet.The corner radius that the sheet will try to render with.If set to non-negative value it will try to render sheet with provided radius, else it will apply system default.If left unset, system default is used.
不支持原因：需要presentation设置为formSheet才生效，而HarmonyOS不支持formSheet。

5，属性名称：sheetInitialDetentIndex

原库描述：Works only when presentation is set to formSheet.Index of the detent the sheet should expand to after being opened.
不支持原因：需要presentation设置为formSheet才生效，而HarmonyOS不支持formSheet。

6，属性名称：sheetGrabberVisible

原库描述：Works only when presentation is set to formSheet.Boolean indicating whether the sheet shows a grabber at the top.
不支持原因：需要presentation设置为formSheet才生效，而HarmonyOS不支持formSheet。

7，属性名称：sheetLargestUndimmedDetentIndex

原库描述：Works only when presentation is set to formSheet. The largest sheet detent for which a view underneath won't be dimmed.
不支持原因：需要presentation设置为formSheet才生效，而HarmonyOS不支持formSheet。