MasterDetailPage: Different behaviour on UWP / Android - xamarin

Question

When using MasterDetailPage in Xamarin.Forms it behaves as aspected in Android. Just like a normal Navigation Drawer. Please notice the correct behaviour of the slide-in mechanism and the correct placement of the hamburger-button. The Buttons in the menu work great as well.
The UWP App looks like this. Notice, there is no hamburger-button:
After klicking on a menu-button, the menu is gone without a possibility to get it back:
Here are some code excerpts:
App.xaml.cs
public partial class App : Application
{
public App()
{
MainPage = new NavigationPage(new MenuPage());
}
...
MenuPage.xaml
<?xml version="1.0" encoding="utf-8" ?>
<MasterDetailPage xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
x:Class="WordDeck.MenuPage"
xmlns:local="clr-namespace:WordDeck;assembly=WordDeck"
Title="WordDeck."
MasterBehavior="Default">
<MasterDetailPage.Master>
<ContentPage Title="Menu">
<StackLayout Orientation="Vertical">
<Button Text="Neues Spiel"
Clicked="MainPage_Clicked"></Button>
<Button Text="Deck Verwaltung"
Clicked="DeckManager_Clicked"></Button>
</StackLayout>
</ContentPage>
</MasterDetailPage.Master>
<MasterDetailPage.Detail>
<local:MainPage></local:MainPage>
</MasterDetailPage.Detail>
</MasterDetailPage>
MenuPage.xaml.cs
public partial class MenuPage : MasterDetailPage
{
public MenuPage()
{
InitializeComponent();
}
private void MainPage_Clicked(object sender, EventArgs e)
{
Detail = new MainPage();
Title = "WordDeck.";
IsPresented = false;
}
private void DeckManager_Clicked(object sender, EventArgs e)
{
Detail = new DeckManagerPage();
Title = "Deck Verwaltung";
IsPresented = false;
}
}
MainPage and DeckManagerPage are nearly empty and of type ContentPage.
Why is there no menu Button on UWP?

Answer 1

It's because you're running the UWP app as a desktop app and not on the phone. If you run the app on a mobile phone or emulator you should see the menu as on Android.
If you want to use the hamburger behaviour when running as a desktop app set MasterBehavior = MasterBehavior.Popover on your MasterDetailPage

Answer 2

The main problem is the IsPresented on the desktop hides the drawer.
One way to handle this is not to hide on desktop or tablet.
For example...
// Called from each Clicked Event
private void SetPresentedVisability()
{
switch (Device.Idiom)
{
case TargetIdiom.Phone:
IsPresented = false;
break;
case TargetIdiom.Desktop:
case TargetIdiom.Tablet:
case TargetIdiom.Unsupported:
IsPresented = true;
break;
}
}
Alternately you could ignore any non phone IsPresented setting.
IsPresented = (Device.Idiom == TargetIdiom.Phone) ? false : true;