I am developing a mobile application with Xamarin.Forms. All the GUI development in the PCL (Portable Class Library) and have the following problem.
I have a ContentPage of authentication, after authenticating a user is redirected to another ContentPage where a menu. The problem is when ContentPage from the menu, the device changes orientation to landscape, this happens when the application is redirected to ContentPage of authentication.
How I can fix the problem so that when the device changes orientation ContentPage not change?