I need to route pages A -> B -> C -> D, once I got into D, I need to use the navigation button back to page D -> A. I am trying to implement this scenario IOS and Android in Xamarin Forms.
Please help
Your case use the Navigation.PopToRootAsync ();
Navigation.PopToRootAsync ();
This method pops all but the RootPage
off the navigation stack, therefore making the root page of the application the active page.
Navigation.PopAsync ();
This causes the Page2Xaml
instance to be removed from the navigation stack, with the new topmost page becoming the active page.
The following doc explains well about Xamarin.Forms
Navigation. https://docs.microsoft.com/en-us/xamarin/xamarin-forms/app-fundamentals/navigation/hierarchical
Inside the "D" page override the "OnBackButtonPressed" and inside the function iterate trough the pages you no longer need and remove them one by one.
Pseudo code:
protected override bool OnBackButtonPressed()
{
foreach (var page in Navigation.NavigationStack)
{
//find the pages you want to remove
Navigation.RemovePage(PageYouFound);
}
//Set new page
return base.OnBackButtonPressed();
}
You can oveeride OnBackButtonPressed Event and use Navigation.PopToRootAsync
protected override bool OnBackButtonPressed()
{
Navigation.PopToRootAsync();
return base.OnBackButtonPressed();
}
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