问题
I am writing a Windows Phone 8.1 runtime app. The InkPresenter class which was available in Windows Phone 8 is not there in 8.1.
Now, 8.1 should be backward compatible with 8 and that all the apps that used the InkPresenter class in Windows Phone 8 can run on 8.1 too. So my guess(and I can be wrong in assuming this) is that the Inkpresenter class should be there in Windows Phone 8.1 too but might be under a different namespace. Otherwise, how could the apps of Windows Phone 8 using the Inkpresenter class be run on Windows Phone 8.1.
Is my guess true? If yes then please specify how to find the new namespace.
回答1:
You are writing a Windows Phone 8.1 Runtime XAML based app which targets new sets of common WinRT API's for Windows Phone 8.1 . And Windows Phone 8 apps target sliverlight api's, if you want to use the same api's in Windows Phone 8 in your Windows Phone 8.1 then try writing Windows Phone 8.1 sliverlight apps, this will solve your problem. This will help you understand better
来源：https://stackoverflow.com/questions/23652107/namespace-missing-in-windows-phone-8-1-runtime-app-project