How to call randomly selected number from contact list in flutter?-CodePudding

import 'package:flutter_phone_direct_caller/flutter_phone_direct_caller.dart';
import 'package:contacts_service/contacts_service.dart';

void checkContactPermission() async {
  var status = await Permission.contacts.status;
  var contacts = ContactsService.getContacts();
  var list = [contacts];
  var randomItem = (list.shuffle());
  if (status.isGranted) {
    FlutterPhoneDirectCaller.callNumber('randomItem');
  }
  if (!status.isGranted) {
    PermissionStatus permissionStatus = await Permission.contacts.request();
    if (status.isDenied) {
      PermissionStatus permissionStatus = await Permission.contacts.request();
    }
  }
}

Here is my code to call randomly selected number from contact list yet it is calling a same number that isn't even on the contact list. What should I change? Thanks in advance

CodePudding user response：

You can use the dart:math package in Flutter to generate a random number between 1 and the size of the contactList, then just call the random contact by the random index generated.

import 'dart:math';

getRandomContact(List<Contact> contactsList){
   var random = new Random();
   var randomContactIndex = random.nextInt(contactsList.length);
   return contactsList[randomContactIndex);
}

You can call it like:

Contact randomContact = getRandomContact(contactsList);

CodePudding user response：

Future<void> checkContactPermission() async {
  var status = await Permission.contacts.status;
  if (status.isGranted) {
    var contacts = await ContactsService.getContacts();
    var list = contacts;
    list.shuffle();
    var randomItem = (list.first.phones?.first.value);
    await FlutterPhoneDirectCaller.callNumber('$randomItem');
  }
  if (!status.isGranted) {
    PermissionStatus permissionStatus = await Permission.contacts.request();
    if (status.isDenied) {
      PermissionStatus permissionStatus = await Permission.contacts.request();
      }
    }
  }

Here is what I found to be working