react-native-swipeout

          <FlatList 
            data={this.state.data}
            execData={this.state.update}
            renderItem={({item}) => 
              <Swipeout 
                autoClose={true}
                sectionID={item.rowid}
                rowID={item.rowid}
                right={[{text:'DELETE',backgroundColor:'red', onPress:()=>this.swipeDelete(item.rowid)}]}
                onOpen={(sectionID, rowId, direction)=>this.swipeOpen(sectionID, rowId, direction)}>
                <View>
                <Text style={{fontSize:20}}>{item.question}:{item.answer}</Text>
                </View>
              </Swipeout>
            }
          />  

autoClose={true}を追加したら解消した。