Flutter <= 1.19.x
dependencies:
  record_mp3: ^1.0.1

Flutter >=1.12.x  <2.0.0
dependencies:
  record_mp3: ^2.1.0

Flutter >=2.0.0 nullsafety
dependencies:
  record_mp3: 
  	git:
	 url:git://github.com/fluttercandies/flutter_record_mp3

dependencies:
  record_mp3: ^3.0.0

<key>NSMicrophoneUsageDescription</key>
<string>xxxxxx</string>

import 'package:record_mp3/record_mp3.dart';

//start record 
RecordMp3.instance.start(recordFilePath, (type) {
       // record fail callback
});
	  
//pause record
RecordMp3.instance.pause();

//resume record
RecordMp3.instance.resume();

//complete record and export a record file
RecordMp3.instance.stop();