The social framework
As social networks like Facebook and Twitter are very popular nowadays, Apple decided to create a framework for social networks, meaning that now it is much easier to share pictures with our friends.
For this app, we are going to use Facebook. The only detail the user must know is that he would have to log in to Facebook on his device before he uses this app.
Note
There are other ways of logging in to Facebook like using the SDK or some third-party frameworks such as Mixpanel. It depends on the users and the method they would like to use.
Logging in is not difficult; the user just needs to go to Settings and scroll down till they find the Facebook option.
Once this option is selected, the user can introduce his username and password. ...
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