Confirmation Dialog on back button press event Xamarin.Forms

Question

I am stuck at one point in Xamarin.Forms application

On Back button press simply I want to ask user to confirm whether he really wants to exit or not, \"OnBackButton

Answer 1

Easy way to override hardware back button and show a confirmation dialog box to user

protected override bool OnBackButtonPressed()
{
    Device.BeginInvokeOnMainThread(async () =>
    {
        if (await DisplayAlert("Alert", "Are you sure you want to go back ?", "Yes", "No"))
        {
            base.OnBackButtonPressed();

            await Navigation.PopAsync();
         }
    });

    return true;
}