CODEWITHSUNDEEP
c#xamarinxamarin.formsxamarin.android
F205
F205

Reputation: 139

How could I close my sidebar without closing my app in C# xamarin forms android?

I'm working with C# xamarin forms android and I'm trying to close my sidebar when the user touches de backbuttom but I'm not able to do it. Instead, my aplications closeses.

HomePage.xaml.cs code:

public partial class HomePage : ContentPage
{
    string[] subs;
    public HomePage()
    {
        //NavigationPage.SetHasBackButton(this, false);
        InitializeComponent();
    }
    protected override bool OnBackButtonPressed()
    {
        return true;
    }
}

my sidebar AppShell.xaml.cs code:

public partial class AppShell : Xamarin.Forms.Shell
    {
        public AppShell()
        {
            InitializeComponent();
            nameuser.Title = Preferences.Get("displayName", "Default");
            versionadoAPP.Text = "v" + $"{VersionTracking.CurrentBuild}.{VersionTracking.CurrentVersion}";
        }
        protected override bool OnBackButtonPressed()
        {
            return true;
        }
}

Image of my app:

enter image description here

How could I resolve that? Thank tou very much!

Upvotes: 0

Views: 106

Answers (2)

Thush-Fdo
Thush-Fdo

Reputation: 514

If you have a home page you want to take the user when the user touches the Android back button, you can first check whether the sideMenu is open and if so close it with the back button and then with next touch send the user to the desired main page as below;

protected override bool OnBackButtonPressed()
{
    if (Shell.Current.FlyoutIsPresented)
    {
        Shell.Current.FlyoutIsPresented = false;
    }
    else
    {
        Device.BeginInvokeOnMainThread(async () =>
        {
            await Shell.Current.GoToAsync($"//{nameof(<your home page>)}");
        });
    }
    return true;
}

Upvotes: 0

FreakyAli
FreakyAli

Reputation: 16572

The easiest way that do this is to set the flyout presented property.

Try something like this:

   Shell.Current.FlyoutIsPresented = false;

Good luck!

Upvotes: 2

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