I get two instances of toolbar displayed when returning to main page

Steve Brooke 40 Reputation points

Happens for iOS and Android. I've made a simple test where I've added a toolbar with a single item with secondary order. When it is clicked it calls PushAsync to page 1 when back button in page 1 is pressed I see two toolbars stacked on top of each other. I've seen many examples for Xamarin but none for MAUI. Not sure if there might be some difference that I haven't found. Below is a screenshot from an Android showing two toolbars. The vertical ellipses on both toolbars are active giving the impression that there are two instances. Screenshot_20230405-221003

A Microsoft open-source framework for building native device applications spanning mobile, tablet, and desktop.
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Accepted answer
  1. Leon Lu (Shanghai Wicresoft Co,.Ltd.) 69,466 Reputation points Microsoft Vendor

    Hello, Shell has special navigation method. Please refer this document:.NET MAUI Shell navigation.

    Based on your environment, you can do following steps to fix this issue.

    Firstly, please open your App.xaml.cs, remove MainPage = new NavigationPage(new AppShell()); use     MainPage = new AppShell(); directly like following code.

     public App()
           MainPage = new AppShell();
          // MainPage = new NavigationPage(new AppShell());

    Second, open AppShell.xaml.cs and register your page1 in the AppShell's constructor.

    public AppShell()
           Routing.RegisterRoute("Page1", typeof(Page1));

    Third, open your MainPage.xaml.cs, find the ToolbarItem_Clicked method, use   await Shell.Current.GoToAsync("Page1"); to do navigation.

    private async void ToolbarItem_Clicked(object sender, EventArgs e)
            // Navigation.PushAsync(new Page1());
           await Shell.Current.GoToAsync("Page1");

    Best Regards, Leon Lu

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