Hi,
the default Live Client shipped with Felgo supports the preview of QML files. As the C++ integration example adds custom C++ code, you can not use the pre-installed Live Client, or the mobile apps from the stores.
It is required to compile the C++ additions into a custom Live Client for your project. You can find a guide how to do this here: Live Code Reloading with Custom C++ and Native Code for Qt.
To use Felgo Live on Android, you build and deploy your own Android Live Client app. To do this, build the project with the Android Kit instead of the Desktop Kit.
Best,
Günther from Felgo