CODEWITHSUNDEEP
androidiosfirebaseflutterdart
Ayan Khan
Ayan Khan

Reputation: 21

Unhandled Exception: type 'bool' is not a subtype of type 'String' in type cast

This is my full code. I have not made the model class as I'm not taking the response from the server.

import 'dart:convert';

import 'package:attendance_worklog/AttendanceLog/attendanceLogModel.dart';
import 'package:attendance_worklog/AttendanceLog/attendanceLogService.dart';
import 'package:attendance_worklog/login/loginModel.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:percent_indicator/linear_percent_indicator.dart';
import 'package:http/http.dart' as http;

class AttendanceLog extends StatefulWidget {
  LoginModel? data;

  AttendanceLog({Key? key, required this.data}) : super(key: key);

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

class _AttendanceLogState extends State<AttendanceLog> {
  List<AttendanceLogModel> _attendanceLogModel = [];
  List<String> day = ['day', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'];

  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    AttendanceLogService _attendanceLogService =
        AttendanceLogService(data: widget.data);
    _attendanceLogService.getLog().then((value) {
      setState(() {
        _attendanceLogModel = value;
      });
    });
  }

  @override
  Widget build(BuildContext context) {
    int flag = 0;
    int per() {
      for (var i = 0; i < _attendanceLogModel.length; i++) {
        if (_attendanceLogModel[i].attendance == true) {
          flag = flag + 1;
        }
      }
      return flag;
    }
    int p = per();
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Colors.white,
        leading: IconButton(
          icon: Icon(Icons.arrow_back),
          onPressed: () => Navigator.of(context).pop(),
          color: Color(0xff979797),
          iconSize: 30,
        ),
        title: Text(
          'Attendance Log',
          style: TextStyle(
              color: Color(0xffA468AB),
              fontWeight: FontWeight.w700,
              fontFamily: 'Merriweather',
              fontSize: 32),
        ),
        actions: [
          IconButton(
              onPressed: (){},
              icon: Icon(Icons.check_outlined))
        ],
      ),
      body: ListView(
        children: [
          Padding(
            padding: EdgeInsets.symmetric(horizontal: 12, vertical: 25),
            child: Column(
              children: [
                LinearPercentIndicator(
                  linearStrokeCap: LinearStrokeCap.roundAll,
                  lineHeight: 18.0,
                  percent: p / _attendanceLogModel.length,
                  backgroundColor: Color(0xffFF0000),
                  progressColor: Color(0xff14FF00),
                ),
                Row(
                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
                  children: [
                    Text(
                      '${(p / _attendanceLogModel.length) * 100}',
                      style: TextStyle(
                          fontWeight: FontWeight.w700,
                          fontSize: 25,
                          fontFamily: 'Merriweather'),
                    ),
                    Text(
                      '${100 - ((p / _attendanceLogModel.length) * 100)}',
                      style: TextStyle(
                          fontWeight: FontWeight.w700,
                          fontSize: 25,
                          fontFamily: 'Merriweather'),
                    )
                  ],
                )
              ],
            ),
          ),
          Container(
            height: 1,
            width: double.maxFinite,
            color: Color(0xffD3D3D3),
          ),
          ListView.builder(
              scrollDirection: Axis.vertical,
              shrinkWrap: true,
              physics: NeverScrollableScrollPhysics(),
              itemCount:
                  null == _attendanceLogModel ? 0 : _attendanceLogModel.length,
              itemBuilder: (context, index) {
                AttendanceLogModel attendanceLogModel =
                    _attendanceLogModel[index];
                void toggleSwitch(bool value) {
                  String hom = '';
                  if (attendanceLogModel.attendance == false) {
                    setState(() {
                      attendanceLogModel.attendance = true;
                    });
                    bool att = attendanceLogModel.attendance;
                    String id = attendanceLogModel.id;
                    PutAttendance send = new PutAttendance(data: widget.data);
                    var response = send.sendAttendance(att, id, hom);
                  } else {
                    setState(() {
                      attendanceLogModel.attendance = false;
                    });
                    PutAttendance send = new PutAttendance(data: widget.data);
                    var response = send.sendAttendance(attendanceLogModel.attendance, attendanceLogModel.id, hom);
                  }
                }
                return Padding(
                  padding: EdgeInsets.all(10.0),
                  child: ListTile(
                    title: Text(
                      'Meet: ${attendanceLogModel.name}',
                      style: TextStyle(
                          fontSize: 17,
                          fontFamily: 'Merriweather',
                          fontWeight: FontWeight.w900),
                    ),
                    subtitle: Text(
                      '${day[attendanceLogModel.start.weekday]}, ${attendanceLogModel.start.day}/${attendanceLogModel.start.month}/${attendanceLogModel.start.year}\n${attendanceLogModel.start.hour}:${attendanceLogModel.start.minute} to ${attendanceLogModel.end.hour}:${attendanceLogModel.end.minute}',
                      style: TextStyle(
                          fontSize: 16,
                          fontFamily: 'Merriweather',
                          color: Color(0xff000000),
                          fontWeight: FontWeight.w100),
                    ),
                    trailing: Transform.scale(
                      scale: 0.8,
                      child: CupertinoSwitch(
                        activeColor: Color(0xff14FF00),
                        value: attendanceLogModel.attendance,
                        onChanged: toggleSwitch,
                        trackColor: Color(0xffFF0000),
                      ),
                    ),
                    tileColor: Color(0xffF2F2F2),
                  ),
                );
              }),
        ],
      ),
    );
  }
}

class PutAttendance{
  LoginModel? data;
  PutAttendance({required this.data});

  var url = Uri.parse('http://10.0.2.2:5001/naf-vip-server/us-central1/api/attendance');
  Future<http.Response> sendAttendance(bool attend, String id, String hom){
    return http.put(url, headers: {
      'Authorization': 'Bearer ${data!.token}'
    }, body:{
      "attendance": attend,
      "meetId": id,
      "hom": hom
    }
    );
  }
}

After running it showing the exception as Unhandled Exception: type 'bool' is not a subtype of type 'String' in type cast. Also, it is not updating the value in the server. I'm not able to figure out what and where is problem. Please help me out with this problem.

Here is Exception stack:

E/flutter (12852): [ERROR:flutter/lib/ui/ui_dart_state.cc(199)] Unhandled Exception: type 'bool' is not a subtype of type 'String' in type cast
E/flutter (12852): #0      CastMap.forEach.<anonymous closure> (dart:_internal/cast.dart:288:25)
E/flutter (12852): #1      _LinkedHashMapMixin.forEach (dart:collection-patch/compact_hash.dart:397:8)
E/flutter (12852): #2      CastMap.forEach (dart:_internal/cast.dart:287:13)
E/flutter (12852): #3      mapToQuery (package:http/src/utils.dart:17:7)
E/flutter (12852): #4      Request.bodyFields= (package:http/src/request.dart:137:12)
E/flutter (12852): #5      BaseClient._sendUnstreamed (package:http/src/base_client.dart:87:17)
E/flutter (12852): #6      BaseClient.put (package:http/src/base_client.dart:37:7)
E/flutter (12852): #7      put.<anonymous closure> (package:http/http.dart:92:16)
E/flutter (12852): #8      _withClient (package:http/http.dart:164:20)
E/flutter (12852): #9      put (package:http/http.dart:91:5)
E/flutter (12852): #10     PutAttendance.sendAttendance (package:attendance_worklog/AttendanceLog/attendanceLog.dart:429:12)
E/flutter (12852): #11     _AttendanceLogState.build.<anonymous closure>.toggleSwitch (package:attendance_worklog/AttendanceLog/attendanceLog.dart:136:41)
E/flutter (12852): #12     _CupertinoSwitchState._handleTap (package:flutter/src/cupertino/switch.dart:226:24)
E/flutter (12852): #13     GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.dart:182:24)
E/flutter (12852): #14     TapGestureRecognizer.handleTapUp (package:flutter/src/gestures/tap.dart:607:11)
E/flutter (12852): #15     BaseTapGestureRecognizer._checkUp (package:flutter/src/gestures/tap.dart:296:5)
E/flutter (12852): #16     BaseTapGestureRecognizer.acceptGesture (package:flutter/src/gestures/tap.dart:267:7)
E/flutter (12852): #17     GestureArenaManager.sweep (package:flutter/src/gestures/arena.dart:157:27)
E/flutter (12852): #18     GestureBinding.handleEvent (package:flutter/src/gestures/binding.dart:443:20)
E/flutter (12852): #19     GestureBinding.dispatchEvent (package:flutter/src/gestures/binding.dart:419:22)
E/flutter (12852): #20     RendererBinding.dispatchEvent (package:flutter/src/rendering/binding.dart:287:11)
E/flutter (12852): #21     GestureBinding._handlePointerEventImmediately (package:flutter/src/gestures/binding.dart:374:7)
E/flutter (12852): #22     GestureBinding.handlePointerEvent (package:flutter/src/gestures/binding.dart:338:5)
E/flutter (12852): #23     GestureBinding._flushPointerEventQueue (package:flutter/src/gestures/binding.dart:296:7)
E/flutter (12852): #24     GestureBinding._handlePointerDataPacket (package:flutter/src/gestures/binding.dart:279:7)
E/flutter (12852): #25     _rootRunUnary (dart:async/zone.dart:1370:13)
E/flutter (12852): #26     _CustomZone.runUnary (dart:async/zone.dart:1265:19)
E/flutter (12852): #27     _CustomZone.runUnaryGuarded (dart:async/zone.dart:1170:7)
E/flutter (12852): #28     _invoke1 (dart:ui/hooks.dart:182:10)
E/flutter (12852): #29     PlatformDispatcher._dispatchPointerDataPacket (dart:ui/platform_dispatcher.dart:282:7)
E/flutter (12852): #30     _dispatchPointerDataPacket (dart:ui/hooks.dart:96:31)
E/flutter (12852):

Upvotes: 2

Views: 4893

Answers (1)

jamesdlin
jamesdlin

Reputation: 90055

The documentation for http.put states:

body sets the body of the request. It can be a String, a List<int> or a Map<String, String>.

Your sendAttendance method calls http.put with a bool (attend) as a value for what is expected to be a Map<String, String>. Convert attend to a String first by calling .toString() on it.

Upvotes: 2

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