Hello everyone,
I've been creating a few App with Xamarin Forms now, and i'm still wondering about Login Pattern. Most of the applications i designed had the same logic:
The application need a simple login page for the user to login before accessing the application, no need to register because the account are created from a website so the mobile application just need to check with a webservice if the credentials are OK, then redirect the user to the main page.
To do this, i found 3 ways to do this :
The application start on the HomePage, then the HomePage check if the user is logged in, if he's not, the application Push a modal Login Page. If the credientials are okay, the login page Pop and the user comeback to the homepage.
The application start on the login page, then if the credentials are okay, the main page is replaced by the HomePage. (Or i push the HomePage and prevent to coming back if user is already logged in).
In the App.cs i try to do some logic to set the main page to the HomePage or LoginPage according to the user state.
These 3 ways worked but i'm still wondering what is the right way to do it. What are the standards and what you people do for your applications ?
Feel free to give me other pattern or comments about the 3 above. I'd like to know what should be done to pick one and stick to it for my further applications.
I worked only with Xamarin.Forms because most of my application are forms based.
Thanks for you answers and pardon my english 
Armand