FlatList.js

class FlatListHelper extends React.PureComponent {
  
  [...]
  
  _onMomentumScrollBegin = () =>  this.props._canJumpToTab(false);  
  _onMomentumScrollEnd = () => this.props._canJumpToTab(true);
  
  [...]
  
  render() {

    return (
      <AnimatedFlatList
       [...]
        onMomentumScrollBegin={this._onMomentumScrollBegin}
        onMomentumScrollEnd={this._onMomentumScrollEnd}
       [...]
      />
    );
  }
}