A Flutter package for Android and iOS for sending and verifying OTP to a Phone number.

Now you can send the message to any country code passed as a parameter to the interface (sendOtp() function)

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

dependencies:
  flutter_otp: ^0.3.2

You can install packages from the command line: with Flutter:

$ flutter packages get

Alternatively, your editor might support flutter packages get. Check the docs for your editor to learn more.

Now in your Dart code, you can use:

import 'package:flutter_otp/flutter_otp.dart';

The important functions used in the package are :

1. sendOtp() to send a OTP (four digit by default, but customizable):

void sendOtp(String phoneNumber, [String messageText]) {
    ...        
}

NOTE:

1. 10 digit phoneNumber should be passed.
2. parameter "messageText" is optional. By default the message text is "Your OTP is : XXXX". If "messageText" parameter is passed then message is sent as " XXXX".

2. resultChecker() which takes the OTP entered by the user as a parameter. The function returns true if OTP is matched, else false is returned.

bool resultChecker(int enteredOtp) {
    ...
} 

NOTE: The OTP entered by user (say, through TextField widget or TextFormField widget etc) is to be passed as a parameter to this function.

To use this package in your application you need to have a sim card in your mobile.

Example Usage:

...
sendOtp('958347XXXX');  //Pass phone number as String

...

int enteredOtp;
TextField(
  onChanged: (val) {
    enteredOtp = val;    
  }
)

...

bool isCorrectOTP = resultChecker();
if(isCorrectOTP) {
    print('Success');
} else {
    print('Failure');
}
...

OR custom "messageText" can be passed as parameter to sendOTP

...
sendOtp('958347XXXX', 'OTP is : ');  //Pass phone number and Custom messaseText as String

...

int enteredOtp;
TextField(
  onChanged: (val) {
    enteredOtp = val;    
  }
)

...

bool isCorrectOTP = resultChecker();
if(isCorrectOTP) {
    print('Success');
} else {
    print('Failure');
}
...

1. Fawaz Hussain
2. Jerin Francis

⭐ the repo to show support!

Pub package Flutter documentation.