Facebook Post Update When Internet Access Resumes
The new updated version of facebook now handle this things pretty well as if you have a status update which is supposed to be posted, you just try posting it and it will keep that in the queue and will auto post the status with all media and text without further needing any input from your end.
Moreover you can also turn off auto play of video on facebook app and you can turn off facebook chat in case that’s annoying to you.
Note: Similarly this feature is also available on Facebook iOS app latest version.