billtech_incoming_call 1.0.0+2

Billtech Incoming Call to show callkit screen in your Flutter app.

example/lib/main.dart

import 'package:firebase_core/firebase_core.dart';
import 'package:flutter/material.dart';
import 'package:flutter_callkit_incoming_example/app_router.dart';
import 'package:flutter_callkit_incoming_example/navigation_service.dart';
import 'dart:async';
import 'dart:convert';
import 'package:uuid/uuid.dart';
import 'package:firebase_messaging/firebase_messaging.dart';
import 'package:billtech_incoming_call/billtech_incoming_call.dart';

Future<void> _firebaseMessagingBackgroundHandler(RemoteMessage message) async {
  print("Handling a background message: ${message.messageId}");
  showCallkitIncoming(Uuid().v4());
}

Future<void> showCallkitIncoming(String uuid) async {
  var params = <String, dynamic>{
    'id': uuid,
    'nameCaller': 'Hien Nguyen',
    'appName': 'Callkit',
    'avatar': 'https://i.pravatar.cc/100',
    'handle': '0123456789',
    'type': 0,
    'duration': 30000,
    'textAccept': 'Accept',
    'textDecline': 'Decline',
    'textMissedCall': 'Missed call',
    'textCallback': 'Call back',
    'extra': <String, dynamic>{'userId': '1a2b3c4d'},
    'headers': <String, dynamic>{'apiKey': 'Abc@123!', 'platform': 'flutter'},
    'android': <String, dynamic>{
      'isCustomNotification': true,
      'isShowLogo': false,
      'isShowCallback': false,
      'ringtonePath': 'system_ringtone_default',
      'backgroundColor': '#0955fa',
      'backgroundUrl': 'https://i.pravatar.cc/500',
      'actionColor': '#4CAF50'
    },
    'ios': <String, dynamic>{
      'iconName': 'CallKitLogo',
      'handleType': '',
      'supportsVideo': true,
      'maximumCallGroups': 2,
      'maximumCallsPerCallGroup': 1,
      'audioSessionMode': 'default',
      'audioSessionActive': true,
      'audioSessionPreferredSampleRate': 44100.0,
      'audioSessionPreferredIOBufferDuration': 0.005,
      'supportsDTMF': true,
      'supportsHolding': true,
      'supportsGrouping': false,
      'supportsUngrouping': false,
      'ringtonePath': 'system_ringtone_default'
    }
  };
  await BilltechIncomingCall.showCallkitIncoming(params);
}

void main() {
  WidgetsFlutterBinding.ensureInitialized();
  runApp(MyApp());
}

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> with WidgetsBindingObserver {
  var _uuid;
  var _currentUuid;

  late final FirebaseMessaging _firebaseMessaging;

  @override
  void initState() {
    super.initState();
    _uuid = Uuid();
    initFirebase();
    WidgetsBinding.instance?.addObserver(this);
    //Check call when open app from terminated
    checkAndNavigationCallingPage();
  }

  getCurrentCall() async {
    //check current call from pushkit if possible
    var calls = await BilltechIncomingCall.activeCalls();
    if (calls is List) {
      if (calls.isNotEmpty) {
        print('DATA: $calls');
        this._currentUuid = calls[0]['id'];
        return calls[0];
      } else {
        this._currentUuid = "";
        return null;
      }
    }
  }

  checkAndNavigationCallingPage() async {
    var currentCall = await getCurrentCall();
    if (currentCall != null) {
      NavigationService.instance
          .pushNamedIfNotCurrent(AppRoute.callingPage, args: currentCall);
    }
  }

  @override
  Future<void> didChangeAppLifecycleState(AppLifecycleState state) async {
    print(state);
    if (state == AppLifecycleState.resumed) {
      //Check call when open app from background
      checkAndNavigationCallingPage();
    }
  }

  @override
  void dispose() {
    WidgetsBinding.instance?.removeObserver(this);
    super.dispose();
  }

  initFirebase() async {
    await Firebase.initializeApp();
    _firebaseMessaging = FirebaseMessaging.instance;
    FirebaseMessaging.onBackgroundMessage(_firebaseMessagingBackgroundHandler);
    FirebaseMessaging.onMessage.listen((RemoteMessage message) async {
      print(
          'Message title: ${message.notification?.title}, body: ${message.notification?.body}, data: ${message.data}');
      this._currentUuid = _uuid.v4();
      showCallkitIncoming(this._currentUuid);
    });
    _firebaseMessaging.getToken().then((token) {
      print('Device Token FCM: $token');
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      theme: ThemeData.light(),
      onGenerateRoute: AppRoute.generateRoute,
      initialRoute: AppRoute.homePage,
      navigatorKey: NavigationService.instance.navigationKey,
      navigatorObservers: <NavigatorObserver>[
        NavigationService.instance.routeObserver
      ],
    );
  }

  Future<void> getDevicePushTokenVoIP() async {
    var devicePushTokenVoIP =
        await BilltechIncomingCall.getDevicePushTokenVoIP();
    print(devicePushTokenVoIP);
  }
}