I made a PCL in which I must identify myself so I have a login page and use login page render that are plateform specific using Xamarin Forms.
On android I am able to authentificate myself with this call : Context.StartActivity(oAuth2Authenticator.GetUI(Context)); in the android renderer
The problem is on iOS when I call this : PresentViewController(oAuth2Authenticator.GetUI(), true, null);
Only a white screen appears.
Before the renderer is called navigation.PushModalAsync(new LoginPage(…)) is called.