loadMore method
when user scroll to load more data into list
Implementation
void loadMore({int page = 1}) async {
if (!_isLoading) {
_isLoading = true;
/// request from network
final result = await _model!.request(page: page);
datasource.addAll(result ?? []);
if (result != null) {
/// update current page value & notify to update UI (observable)
currentPage.value = page;
if (result.length > 0) {
refresher.loadComplete();
} else {
refresher.loadNoData();
}
} else {
refresher.loadFailed();
}
/// reset loading state
_isLoading = false;
}
}