Version Tracking Plugin for Xamarin and Windows

Track which versions of your Xamarin.iOS, Xamarin.Mac, Xamarin.Android, or Windows app a user has previously installed.

Setup

• Available on NuGet: https://www.nuget.org/packages/Plugin.VersionTracking/1.0.1
• Install into your PCL project and Client projects.

Compatible with Xamarin and Windows projects with or without Xamarin.Forms

There is no requirement of a dependency service; a built-in Singleton exposes the functionality.

Platform Support

Platform	Supported	Version
Xamarin.iOS	Yes	iOS 7+
Xamarin.iOS Unified	Yes	iOS 7+
Xamarin.Android	Yes	API 10+
Windows Phone Silverlight	Yes	8.0+
Windows Phone RT	Yes	8.1+
Windows Store RT	Yse	8.1+
Windows 10 UWP	Yes	10+
Xamarin.Mac	Yes

API Usage

Call this on each app launch inside DidFinishLaunching (Xamarin.iOS), FinishedLaunching (Xamarin.Mac), or the MainActivity's OnCreate (Xamarin.Android)

CrossVersionTracking.Current.Track ();

Then call these whenever you want (in these examples the user has launched a bunch of previous versions, and this is the first time he's launched the new version 1.0.11):

var vt = CrossVersionTracking.Current;

vt.IsFirstLaunchEver;        //Returns: False
vt.IsFirstLaunchForVersion;  //Returns: True
vt.IsFirstLaunchForBuild;    //Returns: True

vt.CurrentVersion;           //Returns: 1.0.11
vt.PreviousVersion;          //Returns: 1.0.10
vt.FirstInstalledVersion;    //Returns: 1.0.0
vt.VersionHistory;           //Returns: [ 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.10, 1.0.11 ]

vt.CurrentBuild;             //Returns: 18
vt.PreviousBuild;            //Returns: 15
vt.FirstInstalledBuild;      //Returns: 1
vt.BuildHistory;             //Returns: [ 1, 2, 3, 4, 5, 8, 9, 10, 11, 13, 15, 18 ]

Or set up actions to be called on the first lauch of a specific version or build:

var vt = CrossVersionTracking.Current;

vt.OnFirstLaunchOfBuild ("18", () => Console.WriteLine ("First time Build 18 launched!"));
vt.OnFirstLaunchOfVersion ("1.0.11", () => Console.WriteLine ("First time Version 1.0.11 launched!"));

Contributors

• Colby Williams
• Originally inspired by GBVersionTracking

License

The MIT License (MIT) Copyright © 2016 Colby Williams