If the List is Empty in the RecyclerView, I want to Display Toast with Empty Message

Question

I'm getting the default card in recyclerView for the concept of pagination, as my code in the Fragment is as follows:

private void onResponse(String response) {


   NewEnquiryPagination newEnquiries = new Gson().fromJson(response, new TypeToken<NewEnquiryPagination>() {
    }.getType());

    Log.i("@sandy,", "newEnquiriesFirstPage: " + newEnquiries);

    if (listOfEnquiries !=null) {

        adapter.addAll(newEnquiries.getContent());

        if (currentPage <= TOTAL_PAGES) adapter.addLoadingFooter();
        else isLastPage = true;
    }
}



private void onResponseNextPage(String response) {

    adapter.removeLoadingFooter();
    isLoading = false;
    NewEnquiryPagination newEnquiries = new Gson().fromJson(response, new TypeToken<NewEnquiryPagination>() {
    }.getType());
    if (listOfEnquiries != null ) {

        adapter.addAll(newEnquiries.getContent());

        if (currentPage != TOTAL_PAGES) adapter.addLoadingFooter();
        else isLastPage = true;
    }
}

I'm getting the list from the content as empty but in default i'm getting the card set and also on SwipeRefresh the card is increasing by one.... the problem is in loadFirstPage(); method, if the list is empty i just want to display the snackbar as empty and on SwipeRefresh i just want to refresh the list.

Please help me

Answer 1

Just Put this If Condition to check the Null and Size of the list,

 if (newEnquiries.getContent() != null && newEnquiries.getContent().size() > 0) {
        Log.i("@sss","OnRes");
        adapter.addAll(newEnquiries.getContent());
        if (currentPage <= TOTAL_PAGES) adapter.addLoadingFooter();
        else isLastPage = true;
    } else {
      //Your else condition
    }

Hope so it helps