iOS Interview question || SOLID Principle with real time implementation in iOS

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We are going to understand the solid principle in iOS with real time project implementation which is generally asked in the interview .
SOLID Principle
Single Responsibility Principle
Open/closed Principle
Liskov Substitution Principle
Interface Segregation Principle
Dependency Inversion Principle
Chapters
0:00 Intro
0:57 Single Responsibility Principle
8:39 Open/closed Principle
18:50 Liskov Substitution Principle
29:30 Interface Segregation Principle
33:41 Dependency Inversion Principle

[@michaelamiro6076]

SOLID explainer. SOLID example. You'd make an excellent lecturer if you already aren't. Man God bless you. Thank you.

[@AppDeveloperPoint]

Wow, thank you! Do share video among your friends.

[@sudebsarkar21]

really 1 of the best video no one explain this way

[@MegaNerevar]

One of the best videos explaining this. Thank you buddy.

[@galahador]

This is really good :)
I have sent your videos to all new devs.
Keep up the good work, this is great.

[@AppDeveloperPoint]

Thanks Petar.

[@iOSTechie]

So far the best video on SOLID principles. Thank you 🙂

[@AppDeveloperPoint]

Thanks 😍

[@parameswaranvellachu7712]

Thanks a lot for this video, bro. There are no words to express my gratitude.♥

[@subinrevi1]

Very well explained.

[@artijaiswal6269]

Thank you so much, clearly explained 👍

[@vikramho1704]

Thank you so much for the clear explanations on SOLID principles. The code refactoring on each principle really helps.

[@AppDeveloperPoint]

Glad you liked it.

[@akshaykumar-qj2kx]

Explained very well. Keep it up ..

[@lovapothagani916]

Great explanation, Please continue this interview series which will be very helpful for many people preparing for interviews.

[@AppDeveloperPoint]

Thanks for watching. Do watch latest videos on ViewThatFits ua-cam.com/video/a0YhnPoAnVU/v-deo.html

[@user-gr1hp5rk1v]

Thank you so much bro well explanation

[@kianavila1698]

Nice one.. more understandable

[@SathishKumar-cp4ky]

Awesome explanation

[@rohitvishwakarma9261]

again good explanation

[@ranganathchenna4559]

good explanation 👏🏼

[@yashwanthpuvvada9291]

It is really helpful for the developers who started working with SOLID principles. In this video you explained the details note for each and every point. And I am really thankful fo this video.

[@AppDeveloperPoint]

Glad it was helpful!

[@pavunraj2449]

Thank you so much man , you are done good job.

[@AppDeveloperPoint]

You are welcome

[@siddharthkothari007]

awesome example and explanation Nilesh.

[@AppDeveloperPoint]

Glad you liked it

[@nathtanmay]

very nice content. I have already watched many videos on the same topic. But I found this video to be the easiest to understand.

[@AppDeveloperPoint]

Glad to hear that

[@nirajmehta3102]

Keep up the good work. well explain

[@AppDeveloperPoint]

Thanks.. Do watch this latest playlist ua-cam.com/play/PLV7VzbWXa60E5q8u6g4QPd9wAC19y1yL4.html

[@anweshannu2518]

Please continue these interview series it would be helpful for developers like me

[@AppDeveloperPoint]

Yes sure

[@surendramahawar8858]

This is seriously too much help full I am going use solid principles in my application Thank you so much for the awesome explanation😊

[@AppDeveloperPoint]

Glad it was helpful!

[@anweshannu2518]

Nice content

[@farooqueazam8579]

Very nice explanation

[@AppDeveloperPoint]

Thanks and welcome

[@vishnusivabalan]

Very good sir.. your way of teaching is impressive.. please post many videos it's more helpful for developers and students.

[@AppDeveloperPoint]

Thank you, I will

[@sakirsaiyed49]

very good content.. keep it up :)

[@AppDeveloperPoint]

Thanks

[@ithouse3607]

This is a really good explanation,
That'll be great if you create a playlist only for the advanced network layer.

[@AppDeveloperPoint]

Thanks man. Could you please also tell what topic you want to have in that playlist regarding advance network concepts.

[@ithouse3607]

@App Developer Hi Brother, Thanks for your feedback. It'll be great If you arrange a playlist with MVVM, SOLID principles Advance Networking layer, etc in a Simple project. Mainly If you focus on how a senior iOS Developer was working and how they're managing everything in a project. We saw most of the UA-camrs (iOS developers) making a lot of videos with a single topic for beginners but not for Senior Developer. So I think that'll be best.

[@praatul2]

I would request to have a test case also. UT should be mandatory for it. It will help us to know, how to mock data here and how to cover the code.

[@wahhmann123]

Does line 34 in network manager cause a retained cycle?

[@ponmaniraja9576]

Thanks for your hard work to make every one understand smart to know

[@SoftwareSoulmates143]

subscribed 😍

[@sorabhgupta4604]

Good

[@anuragwhocodes5383]

👌

[@priyankamathur5684]

thanks for sharing

[@AppDeveloperPoint]

🙂

[@poojanegi9786]

can make delegate as optional , will it break Interface segregation principle ?? I am confused here plz help

[@SourovDattacse]

Pretty good, and understandable video for iOS

[@AppDeveloperPoint]

Thanks

[@SourovDattacse]

@@AppDeveloperPoint Hello man, It will be great if you implement Unit testing on API calls. Already you did the structure. Just need lesser effort. Currently, Many interviewers ask about this.

[@AppDeveloperPoint]

This video will help you. I have already implemented unit test case on API call. ua-cam.com/video/xJDNbWTvKqY/v-deo.html

[@SourovDattacse]

@@AppDeveloperPoint thank you

[@sanjeevreddy1756]

great video

[@AppDeveloperPoint]

Glad you enjoyed it

[@poplagroup9551]

Hi Bro, just one question in comment view service class you are currently adding more functions which also break open closed principle so should we make it generic too?
Same goes on in viewcontroller as well?
@App Developer

[@manojsomineni5979]

Nice video

[@AppDeveloperPoint]

Thanks

[@CyberMew]

Can you do this for UIKit? That would be helpful

[@praveenvelanati9450]

OCP says a type should open for extension. Using generics is not really extending the type's capabilities here. is OCP more related to using extensions?

[@sudebsarkar21]

Hi for 2nd principle How its open for Extension that I think u may missed or I not understood , but closed for modification is cleared, can can u please comment here , it will be helpful.

[@pramodhp1300]

Nice Explanation.
Can you please do some videos on End to End Unit Testing .

[@AppDeveloperPoint]

Sure.. Added to my list

[@amrutsabade1144]

Nice , can u do some videos on multi threading,

[@AppDeveloperPoint]

Yes, soon

[@trishnachakraborty9702]

Hlw can u make the minmalist type of app in android Phone...actually this app is in mac store or iphone store .i know the whole app cannot be made but the app desigining and the serial effects i hope it can be made....the app is about a focus timer and daily finishing goals...it is not on play store...i can guaranteed to you if you made this app it can have. A 5m+ratings on play store as it will be really helpful

[@sanjeevreddy1756]

please make a video on push notifications and app deployment in swift

[@AppDeveloperPoint]

Thats on the way. May be this month or next month for sure

[@rahulumap2969]

I think you haven't explained Liskov Substitution Principle properly, it's not about specific implementation but the types and method you implement in the child class.

[@redhotbits]

SOLID principles are not so applicable on iOS development. Apple breaks SOLID a lot

[@AppDeveloperPoint]

Its applicable if you use properly in your project

[@redhotbits]

​@@AppDeveloperPointuncle bob did not have swift structs when he wrote SOLID dogma. CoreData also breaks all the dogma from uncle bob

[@alexvaiman4966]

your Liskov substitution principle explanation is not accurate(at best), adding check of internet connection dont brake nothing, as network call can throw error, it is part of the contract, more over, adding check of internet connection, will not change F(x), for any x, where x is query, F(x), fetch result. this is implantation dilates, dont brake nothing, bad example. you would better stick to classic Wikipedia example of square shapes. if you did something wrong... there is that you should have returned an error, in case of no internet.. and not just return and hand the caller forever ))), but that is a different story.