message: Destructured listeners
diff: @@ -26,8 +26,9 @@ class TabBarItem extends React.Component<any> {
  }
  handleBack() {
  if (this.props.selected) {
  - for (var i = this.backHandler.listeners.length - 1; i >= 0; i--) {
  - if (this.backHandler.listeners[i]())
  + var {listeners} = this.backHandler;
  + for (var i = listeners.length - 1; i >= 0; i--) {
  + if (listeners[i]())
  return true;
  }
  }
  