Correct use of Prism navigation service in xamarin forms

Question

I want to confirm if I am using the prism navigation service with xamarin forms correctly. I have a master detail page, a styled navigation page and a bunch of content pages.

right now I am using the service in the following way:

            var prj = await dataService.GetLwdProject(appState.SelectedProjectId);
            var nparam = new NavigationParameters();
            nparam.Add("Project", prj);
            await NavigateTo("RootPage/StyledNavigationPage/SessionsListPage", nparam);

Where the Master detail page is the RootPage object. So expecting that when a user selects an item from this list page the correct way to the service should be:

                var nparma = new NavigationParameters();
                nparma.Add("Session", option);
                await App.NavigateTo("RootPage/StyledNavigationPage/SessionsListPage?ProjectId=" + option.ProjectId + "/LocationListPage", nparma);

What I expect that just a LocationListPage would be added to the navigation stack, but when I use the the hardware back button on android it looks like that not only the last page was added but the whole path (all pages). So is this the correct way auto construct the desired path?

Answer 1

No. Navigation is always relative to where you are calling it. What you have now will navigate to the entire deep link you have created every time. Just navigate to your target NavigationPage/SessionListPage and pass your parameter. Though, you won't get a new page every time in this case, since you are navigating to the same view, but just passing different state.