public MainActivity()
{
container = MefService.GetMEFContainer(new List <Assembly>()
{
typeof(MainActivity).Assembly
}, this);
}
public LoginActivity()
{
using var container = MefService.GetMEFContainer(new List <Assembly>()
{
typeof(MainActivity).Assembly
}, this);
loginController = container.GetExportedValue <LoginController>();
loginViewModel = loginController.LoginViewModel;
}