This was based on https://github.com/jsauve/OAuthTwoDemo.XForms, which was published before Xamarin.Forms 1.3.X
Xamarin.Forms 1.3.X allows for the ability to just set a MainPage, which looks like a logical way to do things. For reference, take a look here: http://developer.xamarin.com/guides/cross-platform/xamarin-forms/working-with/app-lifecycle/
This is just a demo that allows you to see all the various config screens that you'll encounter when setting up a Google app. I included the api keys and whatnot, as I don't see any reason not to. It isn't a real app. If you set up your app to use this apps credentials, then you'll probably be bummed when I delete the app from my Google account. Or when I die. Or whatever.
The app starts on a start page that has a button that says 'Log On With Google'. I'd love to get more auth methods in here. I'd especially love to see a demo of native Facebook auth in a Xamarin.Forms app.
Any and all feedback is welcome - There are probably better ways to handle much of this.
Some things that I don't like -
- Every time there is a login, we're making new pages. Seems like the old ones are probably floating around somewhere, but I don't know how to find a reference to the previous page.
- Probably should make that google button look decent if we're going to add other login methods.
- Storing auth in App.Properties - Works as it is global, but probably a better way to do it.
So here are some nice screenshots:
Startup screen - This gives us a place to go back to when someone logs out. If the app starts right out into an Auth page, I think that's a little befuddling. Apologies for the large screen shots - I really don't feel like going back and shrinking them.
This screen is only seen once per authenticating user - Once the user grants permission to the app, subsequent logins won't ask for permissions.
Any time you set up a new app, you're going to have to go thru some screens over at https://console.developers.google.com/project I constantly have problems even getting to the correct screens, as my box is constantly logged in to at least 2 gmail addresses at any time.
The redirect address used here is as suggested by a StackOverflow thread here: http://stackoverflow.com/questions/25520180/google-account-login-integration-for-android-xamarin
