Swift Access Control Explained

In this Swift tutorial I explain all the keywords for access control. We walk through private, fileprivate, internal, open and public with examples of each. I recommend using my video as an introduction to get the general idea of how these work, then move on to reading the documentation linked below for further understanding of access control in Swift.

This tutorial was built using Xcode 11 and Swift 5.1.

Access Control Documentation:

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[christostsangaris]

One of the reasons I purchased your “iOS Dev Job Interview practice” without even thinking, is your crystal clear way to explain things! Keep it up Sean!

[jeffbezos]

I had some doubts after reading the swift documentation, but you just cleared them out for me. Thank you again!

[AcselRo]

Apple, please fix the "private" access control to also work in extensions that are in other files, not only in the same file with the declaration. 🤷‍♂️

Great video!

[RizosKonstantinos]

This is the video that i was looking for. Thank you Sean.

[robinandthedog]

Thanks for the attention to this, go this in an interview asked.

[JasonMitchellAZ]

Hey look, you hit 50k subs - congrats! 🥳

[jameelshehadeh]

very important topic i got asked about this topic in my last interview, thank you sean

[PatricioBenavente]

Thanks Sean. I did not understand fileprivate.
Love your videos, good work

Greetings from Argentina

[aishaoh]

Excellent tutorial! very clear explanation, thanks! Also, totally unrelated question but what software do you use to create these videos to essentially have Xcode UI & yourself on the same screen?

[farziinsan]

Excellent tutorial! very clear explanation, thanks!

[KFrench]

Great video Sean, thanks a bunch! Always drill the basics, right 👍

[snaky_pants]

private(set) is kinda cool too. Gives you read only access, but is private for setters

[princekili]

Thanks a lot. 
This video is really helpful and easy to understand. 👍👍👍

[georgeelsham]

We need a `groupprivate` I think! Makes it private to a folder/group, similar to Java’s default access modifier.

[jasurrajabov]

Thank you Sean for great tutorial about Access Control. As an addition I would also like to know about "final", where and why to use.

[TheBlueSquirtle]

can u pls do more iOS interview questions? I ran through that playlist and the Swift Keywords playlist and need more of ur content bc this really sticks with ur explanations !! Thanks!!!

[honza_kriz_bass]

Cool video, as always! As you said, it covers the basics more than enough.

One little nitpicky thing: I'm sad you didn't include "private(set)" - although I guess it's not a core part of access control, IMO it's a super useful feature!
(commenting mostly so that the few people who read comments might hear about it for the first time 😀 don't know if you omitted it on purpose)

[mazedar_tv]

So whats difference between Public and Internal?

[nareshy]

Hi Allen...
I am requesting
Please upload setters and getters in swift
please do this video Allen

[gakkieNL]

Online tutorials should use and teach access control more often. Part of proper coding imho... thanks for the video!