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我正在尝试制作ListView单个项目的高度,然后将其放置在父视图的中心。这样,列表的顶部和底部滚动到视图的中心。当我将 a 应用于 时会出现问题,TouchDelegate因此ListView用户可以从实际的ListView. 我可以单击ListView通过,TouchDelegate但我无法上下滑动或单击并拖动列表。只需轻按它。