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A flutter plugin to wrap Google's Machine Learning Smart Reply library.

flutter_smart_reply #

A flutter plugin to wrap Google's Smart Reply library.


Features #

With ML Kit's Smart Reply API, you can automatically generate relevant replies to messages. Smart Reply helps your users respond to messages quickly, and makes it easier to reply to messages on devices with limited input capabilities.

Demo #

Installation #

Following steps will help you add this library as a dependency in your flutter project.

  • In the pubspec.yaml file in the root of your project
  flutter_smart_reply: ^0.0.1
  • Run the following command to get packages:
$ flutter pub get
  • In your project-level build.gradle file, make sure to include Google's Maven repository in both your buildscript and allprojects sections.

  • Add the dependencies for the ML Kit Android libraries to your module's app-level gradle file, which is usually app/build.gradle:

dependencies {
  // ...
  implementation 'com.google.mlkit:smart-reply:16.1.0'
  • Also in your app-level build.gradle file, disable compression of tflite files:
android {
    // ...
    aaptOptions {
        noCompress "tflite"
  • Import the package in your project file:
import 'package:flutter_smart_reply/flutter_smart_reply.dart';

Usage #

For a more detailed look at how to use this library, there is a sweet project in the example directory and various examples can be found here

A simple example usage is shown below:

import 'package:flutter_smart_reply/flutter_smart_reply.dart';

void main() {

class MyApp extends StatefulWidget { ... }

class _MyAppState extends State<MyApp> {

  // a list to track what text messages are added.
  List<TextMessage> _textMessages = [];

  // a list to sotre suggested reply messages.
  List<String> _replies = List.empty();

  // whether the message is from local side or remote side
  bool isSelfMode = true;

  // when _textMessages are updated, we call this function to update the suggested replies.
  Future<void> updateSmartReplies() async {
    try {
      _replies = await FlutterSmartReply.getSmartReplies(_textMessages);
    } on PlatformException {}

  Widget build(BuildContext context) {...}
  // when a new message text is added, 
  Future<void> _addMessage(String message) async {

        ? TextMessage.createForLocalUser(message, DateTime.now().millisecondsSinceEpoch)
        : TextMessage.createForRemoteUser(message, DateTime.now().millisecondsSinceEpoch));

    await updateSmartReplies();

    if (!mounted) return;

    isSelfMode = !isSelfMode;

    setState(() {});

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A flutter plugin to wrap Google's Machine Learning Smart Reply library.

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