Flutter Upgrade Version Package

A Flutter plugin for Android, iOS allowing get information about package, version info.

	Android	iOS
Support	✅	✅

Features

• Get Package Information (app name, package name, version, build number).
• Get Information of Version at store (Apple Store).
• Support In App Update - Android

Installation

First, add flutter_upgrade_version as a dependency in your pubspec.yaml file.

dependencies
  flutter_upgrade_version: ^1.1.7

In-app Updates

The in-app updates feature is supported on devices running Android 5.0 (API level 21) or higher. Additionally, in-app updates are only supported for Android mobile devices, Android tablets, and ChromeOS devices.

How to test In-App Update

Your app can use the Google Play Core libraries to support the following UX flows for in-app updates:

Flexible Update Flows

Flexible updates provide background download and installation with graceful state monitoring. This UX flow is appropriate when it's acceptable for the user to use the app while downloading the update. For example, you might want to encourage users to try a new feature that's not critical to the core functionality of your app.

Immediate Update Flows

Immediate updates are fullscreen UX flows that require the user to update and restart the app in order to continue using it. This UX flow is best for cases where an update is critical to the core functionality of your app. After a user accepts an immediate update, Google Play handles the update installation and app restart.

Usage

Package Information

You can use PackageManager to get information about the package.

import 'package:flutter_upgrade_version/flutter_upgrade_version.dart';

Future<void> getPackageData() async {
  PackageInfo _packageInfo = await PackageManager.getPackageInfo();
}

PackageInfo class - Fields:

• appName : the app name
• packageName : the package name
• version : the package version
• buildNumber : the build number
• languageCode : the language code of Locale.
• regionCode : the country/region code for this locale. ISO 3166 alpha-2 country code

Android: Using In-app Update

Note: Be mindful of how often you request updates to avoid annoying or tiring your users. You should only request in-app updates for changes that are important to the core functionality of your app.

/// Android
if (Platform.isAndroid) {
  InAppUpdateManager manager = InAppUpdateManager();
  AppUpdateInfo? appUpdateInfo = await manager.checkForUpdate();
  if (appUpdateInfo == null) return; //Exception
  if (appUpdateInfo.updateAvailability == UpdateAvailability.developerTriggeredUpdateInProgress) {
    ///If an in-app update is already running, resume the update.
    String? message = await manager.startAnUpdate(type: AppUpdateType.immediate);
    ///message return null when run update success 
  } else if (appUpdateInfo.updateAvailability == UpdateAvailability.updateAvailable) {
    ///Update available
    if (appUpdateInfo.immediateAllowed) {
      debugPrint('Start an immediate update');
      String? message = await manager.startAnUpdate(type: AppUpdateType.immediate);
      ///message return null when run update success 
    } else if (appUpdateInfo.flexibleAllowed) {
      debugPrint('Start an flexible update');
      String? message = await manager.startAnUpdate(type: AppUpdateType.flexible);
      ///message return null when run update success
    } else {
      debugPrint('Update available. Immediate & Flexible Update Flow not allow');
    }
  }
}

iOS: Information of Version on the Apple Store

We get the app information on Apple Store throught the package_name and regionCode.

• You need to make sure the ID already exits on the Store.

• RegionCode where your app will be available to purchase or download. If your app is not available across countries or regions, you can't lookup the app information on iTunes Search API.
  AppStoreConnect: My Apps > AppName > Pricing and Availability > App Availability

Recommnend to ensure the getiOSStoreVersion function works: The version number is shown on the App Store and should match the one you used in Xcode.

Parameter	Description
packageInfo	Required. PackageManager.getPackageInfo
regionCode	Optional. The default is US The two-letter country code for the store you want to search. The search uses the default store front for the specified country. See ISO_3166-1_alpha-2 for a list of ISO Country Codes.

///iOS
if (Platform.isIOS) {
  VersionInfo? _versionInfo2 = await UpgradeVersion.getiOSStoreVersion(
    packageInfo: _packageInfo, 
    regionCode: 'VN',
  );
  ///Example: VN - Viet Nam
}

With VersionInfo class, I have provided information about:

• canUpdate: Return true if app can update.

• isReviewing: Return true if app is reviewing.

• localVersion: The current version of app.

• storeVersion: The current version of app on the store.

• releaseDate: The release date of current version on the store.

• appStoreLink: Link connect to App Store.

• releaseNotes: The notes of version on the store.

In-app Update message

Note: startAnUpdate() return String? (a notification message). When update successfully, message is nullable.

Message	Description
MSG_USER_HAS_DENIED_OR_CANCELED_THE_UPDATE	The user has denied or canceled the update.
MSG_RESULT_IN_APP_UPDATE_FAILED	Some other error prevented either the user from providing consent or the update from proceeding.
MSG_APP_UPDATE_TYPE_NO_SUPPORT	AppUpdateType not support
MSG_REQUIRE_CHECK_FOR_UPDATE	Required call checkForUpdate before startAnUpdate
MSG_UPDATE_LISTENER_ERROR