There are multiple possibilities to include an external library in your MvvmCross-Project (using vNext build on top of PCLs).
- Having a PCL-version of the library you want to include
- Inject from a UI Project
- Inject from a Plugin
For sure the easiest way to go is the first one. As you do not have to create any additional stuff. Simply add the library to your Core-PCL-Project.
More infos about possibility 2 or 3 can be found here: