In Visual Studio 2017, I start a brand new Xamarin.Forms solution, PCL and Blank App template.
Here is what the MainPage.xaml content looks like:
<Label Text="Welcome to Xamarin Forms!"
VerticalOptions="Center"
HorizontalOptions="Center" />
Using the Visual Studio Android emulator, I start a debug session, to confirm its working, and then close it.
Then I make a small change the MainPage.xaml file, for example:
<StackLayout HorizontalOptions="CenterAndExpand" VerticalOptions="CenterAndExpand">
<EntryCell Label="UserName : "></EntryCell>
<EntryCell Label="Password : "></EntryCell>
</StackLayout>
And then I start a debug session again. The emulator behaves as if I never made any changes. The app UI still says "Welcome to Xamarin Forms!".
I tried the following, and none of them change the behavior. The emulator will act as if the very first code that was sent to it is still running.
Restart emulatorClean/Rebuild solutionManually delete bin and obj foldersClose VS2017 and entire VS Android emulator manager and reopenReboot entire PCEverything in this answer- Xamarin Forms Android App Crashes Running Debug with VS Android Emulator
If I start up a new project, do all of the above, and the exact same thing will happen. I have also tried using the default android emulators (from AVDs), and they do not work at all, when I try to debug I simply get a white screen.