message: Raised onChangeActive when search de/activated
diff: }
  }
  +-(BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar
  +{
  + _nativeActiveEventCount++;
  + if (!!self.onChangeActive) {
  + self.onChangeActive(@{
  + @"active": @YES,
  + @"eventCount": @(_nativeActiveEventCount),
  + });
  + }
  + return YES;
  +}
  +
  +-(BOOL)searchBarShouldEndEditing:(UISearchBar *)searchBar
  +{
  + _nativeActiveEventCount++;
  + if (!!self.onChangeActive) {
  + self.onChangeActive(@{
  + @"active": @NO,
  + @"eventCount": @(_nativeActiveEventCount),
  + });
  + }
  + return YES;
  +}
  +
  - (void)searchBar:(UISearchBar *)searchBar selectedScopeButtonIndexDidChange:(NSInteger)selectedScope
  {
  + _nativeButtonEventCount++;
  if (!!self.onChangeScopeButton) {
  self.onChangeScopeButton(@{
  @"scopeButton": @(selectedScope),
  