I am developing a plugin, which will be used on single site, as well as multi-site.
How to make plugin active network-wide, code required.
Also, how to save settings network-wide?
Plugins can be activated network-wide by using the "Network Activate" link, or by placing the Plugin's folder inside the
For network-wide settings versus site-specific settings, I would look at how other Plugins implement such settings, such as WordPress MU Domain Mapping.