Using iOS Notifications, Cryptography and iCloud to build your own Chat App IX

I should start this article with a disclaimer, it based on iOS 13, Swift 5 and Xcode 11.x. If you reading this and those numbers look dated, be forewarned.

I should also warn you that notifications and iCloud code, involve Apple’s infrastructure which means you will need an Apple Developers account to use them.

Obviously this is part IX, you need to go back to the beginning for it to make any sense, indeed you need to look at the notifications series before do that else your struggle. Most of the parts are just 4 minutes long including code.

So where are we. Here is three screenshots. The first shows the data entry screen you get when you install the app.

The second seen here is the data entry screen in which you choose who is the owner of the device your using. Darth or Luke in our example.

The third is the screen that comes up after you choose the owner, showing who else has registered devices you can send messages too.