flutter_facebook_app_links 1.1.0+1

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  • Example
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Flutter Facebook App Links #

Flutter plugin for Facebook App Links SDK. This plugin must be used to catch deferred deeplinks sent from Facebook after your app has been installed from a FB ADS.

Getting Started #

First of all, if you don't have one already, you must first create an app at Facebook developers: https://developers.facebook.com/

Get your app id (referred to as [APP_ID] below)

Configure Android #

For Android configuration, you can follow the same instructions of the Flutter Facebook App Events plugin: Read through the "Getting Started with App Events for Android" tutuorial and in particular, follow step 2 by adding the following into /app/res/values/strings.xml (or into respective debug or release build flavor)

<string name="facebook_app_id">[APP_ID]</string>

After that, add that string resource reference to your main AndroidManifest.xml file

<meta-data
  android:name="com.facebook.sdk.ApplicationId"
  android:value="@string/facebook_app_id" />

Configure iOS #

For iOS configuration, you can follow the same instructions of the Flutter Facebook App Events plugin: Read through the "Getting Started with App Events for iOS" tutuorial and in particular, follow step 4 by opening info.plist "As Source Code" and add the following

  • If your code does not have CFBundleURLTypes, add the following just before the final </dict> element:
<key>CFBundleURLTypes</key>
<array>
  <dict>
  <key>CFBundleURLSchemes</key>
  <array>
    <string>fb[APP_ID]</string>
  </array>
  </dict>
</array>
<key>FacebookAppID</key>
<string>[APP_ID]</string>
<key>FacebookDisplayName</key>
<string>[APP_NAME]</string>
  • If your code already contains CFBundleURLTypes, insert the following:
<array>
  <dict>
  <key>CFBundleURLSchemes</key>
  <array>
    <string>fb[APP_ID]</string>
  </array>
  </dict>
</array>
<key>FacebookAppID</key>
<string>[APP_ID]</string>
<key>FacebookDisplayName</key>
<string>[APP_NAME]</string>

Please refer to the official SDK documentation for Android and iOS.

IMPORTANT NOTES #

User privacy [DO NOT IGNORE] #

How documented on Facebook docs, starting from v5.0.0 of the SDK, they introduce a flag for disabling automatic SDK initialization to be GDPR compliant. It means that you should collect user consent before you use call the method initFBLinks() of this plugin and save the user choice. Moreover, you should give the user a chance to revoke their consent in the future. Please keep in mind that this plugin uses FacebookSDK.setAutoInitEnabled(true) in Android and Settings.isAutoInitEnabled = true in iOS by default, so the consent must be granted in your Dart code before you call FlutterFacebookAppLinks.initFBLinks().

To correctly test deferred deeplinks, DO NOT use the preview of your FB ADS campaign. Instead, use this tool APP ADS HELPER

At the end of the page you will find a "Test deep link" button, click on it and type your custom url scheme (deeplink), for example: myawesomeapp://screen/login

Select the second checkbox (or both). Remember that to make it works, you'll need the Facebook app installed on your device (Android or iPhone) and you must be logged in with the same account you're using in the Facebook Developers console.

Your app doesn't need to be published on the store, simply uninstall it and re-install using Android Studio/VSCode or XCode after you've sent the deferred deep link.

1.1.0+1 #

  • Fixed an error caused from iterating on a null data.

1.1.0 #

  • BREAKING CHANGE: it's not necessary anymore to split the code for Android and iOS. In either cases it will return null when any deferred deep link is available, or a map containing deeplink and promotionalCode. The promotionalCode can be null.
  • README: adding important notes on how to manage user privacy using this plugin.

1.0.2+1 #

  • Removed Log from Java code.

1.0.2 #

  • Fixed a bug on Android where the Future does not complete when no deferred deep link is retrieved. Not it returns null.

1.0.1+1 #

  • Removed the deprecated author: field from pubspec.yaml

1.0.1 #

  • Added example code.

1.0.0 #

  • Initial release.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'dart:async';

import 'package:flutter/services.dart';
import 'package:flutter_facebook_app_links/flutter_facebook_app_links.dart';

void main() => runApp(MyApp());

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String _platformVersion = 'Unknown';

  @override
  void initState() {
    super.initState();
    initPlatformState();
  }

  // Platform messages are asynchronous, so we initialize in an async method.
  Future<void> initPlatformState() async {
    String platformVersion;
    // Platform messages may fail, so we use a try/catch PlatformException.
    try {
      platformVersion = await FlutterFacebookAppLinks.platformVersion;
    } on PlatformException {
      platformVersion = 'Failed to get platform version.';
    }

    // If the widget was removed from the tree while the asynchronous platform
    // message was in flight, we want to discard the reply rather than calling
    // setState to update our non-existent appearance.
    if (!mounted) return;

    setState(() {
      _platformVersion = platformVersion;
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Plugin example app'),
        ),
        body: Center(
          child: Text('Running on: $_platformVersion\n'),
        ),
      ),
    );
  }
}

Use this package as a library

1. Depend on it

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


dependencies:
  flutter_facebook_app_links: ^1.1.0+1

2. Install it

You can install packages from the command line:

with Flutter:


$ flutter pub get

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

3. Import it

Now in your Dart code, you can use:


import 'package:flutter_facebook_app_links/flutter_facebook_app_links.dart';
  
Popularity:
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68
Health:
Code health derived from static analysis. [more]
99
Maintenance:
Reflects how tidy and up-to-date the package is. [more]
100
Overall:
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84
Learn more about scoring.

We analyzed this package on Apr 3, 2020, and provided a score, details, and suggestions below. Analysis was completed with status completed using:

  • Dart: 2.7.1
  • pana: 0.13.6
  • Flutter: 1.12.13+hotfix.8

Health issues and suggestions

Document public APIs. (-1 points)

5 out of 5 API elements have no dartdoc comment.Providing good documentation for libraries, classes, functions, and other API elements improves code readability and helps developers find and use your API.

Format lib/flutter_facebook_app_links.dart.

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Dependencies

Package Constraint Resolved Available
Direct dependencies
Dart SDK >=2.1.0 <3.0.0
flutter 0.0.0
Transitive dependencies
collection 1.14.11 1.14.12
meta 1.1.8
sky_engine 0.0.99
typed_data 1.1.6
vector_math 2.0.8
Dev dependencies
flutter_test