no back button on android
also and so on etc
The Android back buttons are in 2 places, the App Bar & the Navigation Bar. It looks like you’ve disabled both of those bars globally in MainPage.xaml. If you’d like to keep them hidden in MainPage.xaml, then you’ll need to make them visible in each individual Details page. If you prefer to keep them bars hidden in your details pages as well, you can add your own back button to those pages. To do that, add a Button to your details pages that uses a MethodAction to call App PopPage.
nah, it’s really crazy