flutter_tim
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问题：
在实现消息页面时，页面中有 items水平滑动手势 和 list竖直滑动列表，竖直滑动手势控制appBar的显示和隐藏，items自带的滑动事件 理想实现结果是水平手势触发 items水平滑动和item的ScrollView，竖直滑动手势触发 ListView和appBar的滑动事件响应， 目前：