It is beyond my skills to figure out how they've done it, but it appears that you can post text directly to facebook and or twitter. I would like to achieve something similar but with images (and adding Instagram as an app too)
That plugin uses classes like SLServiceTypeTwitter which are deprecated in iOS 11.0, so it is not a good idea to continue using them. With NativeShare, it is not possible to share on a specific app on iOS, you have to use native SDK's for it: Twitter, Facebook
Is it possible to choose a specific app for sharing images/text on iOS?
Looks as if it is done here
It is beyond my skills to figure out how they've done it, but it appears that you can post text directly to facebook and or twitter. I would like to achieve something similar but with images (and adding Instagram as an app too)