get device IMEI in flutter

The best way to get unique identifier ...

in Android: using unique_identifier to get IMEI

dev_dependencies:
  unique_identifier: ^0.0.3

  String  identifier =await UniqueIdentifier.serial;

in IOS: Apple no longer allows you to retrieve the IMEI or any other device identification,but you can generate UDID suing:

import 'package:device_info/device_info.dart';

final DeviceInfoPlugin deviceInfoPlugin = new DeviceInfoPlugin();
      var data = await deviceInfoPlugin.iosInfo;
      identifier = data.identifierForVendor;

Android no longer allows you to access the IMEI or any other device identifier starting from android 10. Third party apps can not use IMEI & the serial number of a phone and other non-resettable device identifiers. So, now you can't access:

getSerial(),

getImei(),

getDeviceId(),

getSimSerialNumber(),

getSubscriberId()

You have to use another unique identifier for this like Android ID

Please refer: https://developer.android.com/preview/privacy/data-identifiers#device-ids

add this plugin in depen https://pub.dartlang.org/packages/imei_plugin

Add this to your package's pubspec.yaml file:

dependencies:
  imei_plugin: ^1.0.0

2. Install it You can install packages from the command line:

with pub:

$ pub get

with Flutter:

$ flutter packages get

I was looking for the device serial number.

The following plugin did the trick for me:

android_multiple_identifier

Modify pubspec.yaml:

dependencies:
    android_multiple_identifier: ^1.0.3

Add the permission to AndroidManifest.xml:

Location -> android/app/src/main/AndroidManifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.my_app_name">

    <uses-permission android:name="android.permission.READ_PHONE_STATE" />

Create a class and access the information:

import 'package:android_multiple_identifier/android_multiple_identifier.dart';

class DeviceInfo {

    Future<String> getDeviceSerialNumber() async {
        // Ask user permission
        await AndroidMultipleIdentifier.requestPermission();
        // Get device information async
        Map idMap = await AndroidMultipleIdentifier.idMap;

        String imei = idMap["imei"];
        String serial = idMap["serial"];
        String androidID = idMap["androidId"];

        return imei;
      }
}

Apple no longer allows you to retreive the IMEI or any other device identificator:

https://stackoverflow.com/a/19927376/2461957