doctor_app_flutter/lib/screens/medicine/medicine_search_screen.dart

import 'package:doctor_app_flutter/models/pharmacies_items_request_model.dart';
import 'package:doctor_app_flutter/providers/medicine_provider.dart';
import 'package:doctor_app_flutter/util/dr_app_shared_pref.dart';
import 'package:doctor_app_flutter/util/dr_app_toast_msg.dart';
import 'package:doctor_app_flutter/widgets/shared/app_scaffold_widget.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';

import '../../routes.dart';

DrAppSharedPreferances sharedPref = DrAppSharedPreferances();

class MedicineSearchScreen extends StatefulWidget with DrAppToastMsg {
  MedicineSearchScreen({this.changeLoadingStata});
  final Function changeLoadingStata;

  @override
  _MedicineSearchState createState() => _MedicineSearchState();
}

class _MedicineSearchState extends State<MedicineSearchScreen> {
  var _medicineModel = PharmaciesItemsRequestModel(
      IsLoginForDoctorApp: true,
      PHR_itemName: "Panadol",
      PatientOutSA: false,
      PatientTypeID: 1,
      LanguageID: 2,
      IPAdress: "11.11.11.11",
      VersionID: 1.2,
      TokenID: "2Fi7HoIHB0eDyekVa6tCJg==",
      stamp: "2020-04-23T21:01:21.492Z",
      SessionID: "e29zoooEJ4");
  @override
  Widget build(BuildContext context) {
    return ChangeNotifierProvider(
        create: (context) => MedicineProvider(), //change builder to create
        child: Consumer<MedicineProvider>(
            builder: (context, provider, child) => AppScaffold(
                appBarTitle: "Search Medicine",
                body: RaisedButton(
                  onPressed: ()  {
                     MedicineProvider medicineProvider =
                        Provider.of<MedicineProvider>(context);
                   searchMedicine(context, medicineProvider);
                    Navigator.of(context).pushNamed(PHARMACIES_LIST);
                  },
                ))));
  }

  searchMedicine(
      context, MedicineProvider medicineProvider) {

    medicineProvider.getMedicineItem(_medicineModel).then((res) {

      if (res['MessageStatus'] == 1) {
        print("ListMedicine " + res['ListPharmcy'].toString());

        //Navigator.of(context).pushNamed();
      } else {
        // handel error
        // widget.showCenterShortLoadingToast("watting");
        //helpers.showErrorToast(res['ErrorEndUserMessage']);
      }
      // Navigator.of(context).pushNamed(HOME);
    }).catchError((err) {
      print('$err');
      //helpers.showErrorToast();
    });
  }
}