mallibone

#time
open System.IO
open System.Globalization

let EnumerateDirectories path =
    Directory.EnumerateDirectories(path) |> Seq.toList

let isObjOrBinFolder (folderName:string) =
    folderName.EndsWith("obj", true, CultureInfo.InvariantCulture) || folderName.EndsWith("bin", true, CultureInfo.InvariantCulture)

mallibone

public class AwareNavigationController : UINavigationController
{
    public event EventHandler PoppedViewController;

    public AwareNavigationController():base() {}
    public AwareNavigationController(UIViewController rootViewController):base(rootViewController){}
    public AwareNavigationController(IntPtr intPtr) : base(intPtr) { }
    public AwareNavigationController(NSCoder coder) : base(coder) { }
    public AwareNavigationController(NSObjectFlag t) : base(t) { }
    public AwareNavigationController(string nibName, NSBundle bundle) : base(nibName, bundle ) { }

mallibone

public LoginPage ()
{
			InitializeComponent ();
      BindingContext = ViewModel;

      UsernameEntry.Completed += (sender, args) => { PasswordEntry.Focus(); };
      PasswordEntry.Completed += (sender, args) => { ViewModel.AuthenticateCommand.Execute(null); };
}

mallibone

protected override void OnAppearing()
{
    if (!App.IsUserLoggedIn)
    {
        App.NavigationService.NavigateModalAsync(PageNames.LoginPage, false);
    }
    base.OnAppearing();
}

mallibone

protected override bool OnBackButtonPressed()
{
    return true;
}

mallibone

private void Logout()
{
    _navigationService.NavigateModalAsync(PageNames.LoginPage);
}

mallibone

using System.ComponentModel;
using System.Windows.Input;
using LoginViewSample.Core.Services;
using Xamarin.Forms;

namespace LoginViewSample.Core.ViewModels
{
    public class LoginViewModel : INotifyPropertyChanged
    {
        private string _username;

mallibone

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="LoginViewSample.Core.Views.LoginPage">
    <ContentPage.Content>
        <Grid Margin="16">
            <Grid.RowDefinitions>
                <RowDefinition Height="Auto"/>
                <RowDefinition Height="*"/>
                <RowDefinition Height="Auto"/>

mallibone

await _navigationService.NavigateAsync("PushNavigationPage", "simple string parameter");

mallibone

public partial class App : Application
{
    public App()
    {
        InitializeComponent();

        NavigationService.Configure("MainPage", typeof(Views.MainPage));
        NavigationService.Configure("ModalNavigationPage", typeof(Views.ModalNavigationPage));
        NavigationService.Configure("PushNavigationPage", typeof(Views.PushNavigationPage));
        var mainPage = ((ViewNavigationService) NavigationService).SetRootPage("MainPage");