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    • What is Zebble?
    • Structure of a Zebble solution
    • Zebble Designer (UWP)
    • Installing - Introduction
    • Change log
    • Introduction
    • ViewModel development
    • VM.EXE
    • View development
    • Dialogs
    • Lists and Collections
    • Tips and shortcuts
    • List views
    • ViewModel testing
    • Automatic Views
    • View development process
    • Hello World - Core Concepts
    • Layout: Sizing & Positioning
    • Event handling
    • Navigation
    • Alerts, Dialog, Prompt and toast
    • View lifecycle
    • Managing Files & Resources
    • Config & Debugging
    • Forms
    • Page templates
    • Device API
    • Animations
    • Web Api - Part 1 (reading data)
    • Web Api - Part 2 (post and delete)
    • Web Api - Part 3 (server vs client domain model)
    • Gesture events
    • View class
    • Zebble Markup (.zbl files)
    • Data Binding and MVVM
    • Stack class
    • Sizing and positioning
    • Layout examples
    • ScrollView class
    • Page class
    • Styling in Zebble
    • CSS property mapping to Zebble
    • Supported selectors
    • Zebble CSS: Under the hood
    • Inline styling
    • CSS real-time updates
    • Dynamic expressions in CSS
    • Gradient background colours
    • CSS Pseudo-classes support
    • Using Bold and Light Fonts in Zebble
    • Rotation in Zebble
    • Using custom fonts in Zebble
    • Flashing on tap using AutoFlash
    • Button
    • Carousel class
    • Checkbox class
    • DatePicker
    • Drawing class
    • FilePicker class
    • Grid class
    • IconButton class
    • ImageView
    • ItemPicker class
    • ListView & Grid classes
    • OptionsList
    • SearchInput class
    • Slider class
    • Switch class
    • Tabs Class
    • TextInput class
    • TextView
    • TimePicker
    • TreeView
    • Waiting Indicator
    • WebView class (displaying html)
    • C# Methods and Properties Of UI Components
    • Nav.Forward() vs Nav.Go()
    • Passing parameters to the destination page
    • Going Back
    • Showing Popup pages
    • Waiting class
    • Hardware Back button (e.g. Android)
    • NavigationBar class
    • Tabs class
    • Caching (pages)
    • Navigation without event handler
    • Use the Windows version
    • Logging messages for Debugging
    • Debugging Zebble/Plugin
    • Exception handling in Zebble
    • Debugging layout and styles
    • Zebble Device API
    • Device.Screen and orientation (landscape | portrait)
    • Code that should run on a specific platform
    • Using Lamp (aka Flash, LED and Torch)
    • Using Compass (Smooth compass)
    • Using Accelerometer (device angle)
    • Using Gyroscope (device motion speed)
    • How to Vibrate the device?
    • Launching the device browser
    • Finding device model and manufacturer
    • Responding to System events
    • Handling device shake event
    • Permissions
    • Permissions declaration (manifest files)
    • Sharing
    • Prompt for rating the app
    • Finding if Internet connection is available
    • Device messaging (Make a phone call, send SMS or Email)
    • Showing a local notification
    • Copying to Clipboard
    • Accessing device contacts
    • Reading and writing into Gallery (albums)
    • Playing & Recording Audio
    • Cache and temp files and folders
    • C# async / await
    • Understanding Zebble Threading
    • Debugging - the StackTrace problem
    • Not awaiting (running in parallel)
    • Timer (interval / scheduled running)
    • Post-render changes to the UI (dynamic)
    • Introduction of Geo location
    • Map & Location Services
    • Launch directions to a location (external)
    • Getting current Location
    • Tracking user location
    • Device.Media: Taking and picking photos
    • Playing an audio file
    • VideoPlayer class
    • Augmented reality
    • Recording audio
    • Virtual Reality
    • Speech Recognition
    • Recording or picking video
    • Playing remote videos in iOS
    • Text to speech
    • Introduction to the importance of Mobile Testing
    • Why and what to test
    • Testing mobile apps on different devices
    • Testing mobile apps
    • Xamarin Profiler
    • Performance optimization
    • Moving a view to another container at run-time
    • Attaching custom data (tag) to objects
    • Saving a view as image
    • Naming best practices
    • Fastest way to update your nuget package
    • Tips for Clean and Brief code
    • Splash screen and icon generation
    • Advice for passing Approval
    • Options for iOS app distribution
    • Test Release (internal and UAT)
    • Application Icons in IOS
    • Submitting to App Store
    • Releasing to App Store
    • Crash reporting
    • Optimized Release Build
    • Android - Generating an APK for manual installation
    • Payment (subscriptions & in-app purchases)
    • Introduction to push notifications
    • Registration process (App)
    • Push notification setup - iOS
    • Push notification setup - Android
    • Push notification setup - Windows
    • Sending a push message from the web app
    • Introduction
    • Connecting Zebble to Web API
    • Installation
    • Creating an API class
    • GET APIs
    • Calling a GET API (in the mobile app)
    • POST, PUT, PATCH and DELETE APIs
    • Domain Model
    • Web API and Authentication
    • Versioning
    • Uniquely identifying installations (token)
    • Settings file: config.xml
    • Standard Zebble settings
    • Login/Register with Facebook
    • Creating a composite component / plugin
    • Creating a Zebble component using Html and Javascript
    • CustomRenderedView: Third-party native components / plugins
    • Mapbox
    • Naming considerations
    • Random problems?
    • Display Keyboard for Visual Studio Android Emulator
    • iOS goes mad?
    • Configuring a Windows phone for ad-hoc testing
    • Fixing Error DEP0001 : Unexpected Error: -2147009287 while deploying Windows UWP app on device
    • Fixing Error DEP0001 : Unexpected Error: -1988945906 while deploying Windows UWP app on device
    • Unable tp Connect to the Mac agent from Visual Studio
    • Can't connect to the Mac agent from Visual Studio?
    • Choosing the CPU architecture
    • Zebble CLI
    • How to add a Device API to Zebble source?
    • About Automated UI testing
    • What should we test in mobile applications?
    • Creating an Automated UI Test in Zebble



Login/Register with Facebook


Register with facebook

You should first go to https://developers.facebook.com/apps and register as a facebook developer.
  1. Create a new App for the application.
  2. Get the App ID assigned to you. for example: 124495023432023, and add to config.xml
    • <Facebook.App.Id>124495023432023</Facebook.App.Id>
  3. In facebook Product Setup page, click "Get Started" for "Facebook Login".
  4. Go to https://developers.facebook.com/apps/124495023432023/fb-login/settings/ (replace the id with yours)
  5. Ensure only the following are enabled:
    • "Client OAuth Login"
    • Embedded Browser OAuth Login
  6. Set Valid OAuth Redirect URLs to https://www.facebook.com/connect/login_success.html

Register with Facebook button

In the app if you want to read the user's details from facebook to allow simplier registration, you can then read the data using:

var user = await Facebook.Register(Facebook.Field.First_name, Facebook.Field.Last_name, Facebook.Field.Email, ...);
if (user != null)
{
      // Successful. Now you can use the data.
}

Log in with Facebook button

In the app if you want to allow logging in with facebook, then a secure approach is the following:

Button code:

var accessToken = await Facebook.Login(Facebook.Field.Email);
if (accessToken.HsaValue())
{
      // Successful. Now use the API to generate a login token.
      var sessionToken = await HttpPost<string>("v1/login/facebook/" + accessToken);
      Device.IO.File("SessionToken.txt").WriteAllText(sessionToken);     
}

API Code:

   [HttpPost, Route("login/facebook/{accessToken}")]
   public IHttpActionResult LoginWithFacebook(string accessToken)
   {
         var json = ("https://" + "graph.facebook.com/me?fields=email&access_token=" + accessToken).AsUri().Download();
         var email = JsonConvert.DeserializeObject<JObject>(json)?.Property("email")?.Value?.ToString();

         if (email.IsEmpty()) return BadRequest("Invalid email.");
         var member = Database.Find<Member>(m => m.Email == email);

         if (member == null) return BadRequest($"The email '{email}' is not registered in our system. Please register.");

         var result = JwtAuthentication.CreateTicket(member);
         return Ok(result);
   }

 




‹
Zebble is a product of Geeks Ltd , a software house based in London, UK. All rights are reserved.

Telephone: +44 (0)845 643 6229

Email: hello@zebble.net

Address: 66a London Road, Morden

Greater London, United Kingdom, SM4 5BE

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