Hide scrollbar in FlatList (React Native) in Android

FlatList is inherited from VirtualizedList.
VirtualizedList is inherited from ScrollView.
So you can use ScrollView props to hide scrollBar indicators in FlatList.

<FlatList
  ...
  showsVerticalScrollIndicator ={false}
  showsHorizontalScrollIndicator={false}
  ...
/>

disable vertical and horizontal scroll indicator

<ScrollView
  showsVerticalScrollIndicator={false}
  showsHorizontalScrollIndicator={false}
 />

Just add

showsHorizontalScrollIndicator={false}

If you are trying to hide the vertical scrollbar use this:

showsVerticalScrollIndicator={false}