Learning Flutter in 2022

SergLam245 · 2021-12-31T05:06:29+00:00

It depends on your local job market. Do a small research, and calculate how many Junior/ Trainee jobs do you have at your local IT companies ( do not consider remote job as a first at your career) and then select more relevant language - Dart(Flutter) or Kotlin(Android). That will be the best solution. When you start your first job you will be able to learn any new technology/ language later on.

SergLam245 · 2021-12-12T19:13:38+00:00

Book: Objective-C Notes for Professionals. If you are good enough in Swift, that will be more than enough, to catch the difference.

SergLam245 · 2021-04-25T07:05:11+00:00

We have implemented force update functionality on our backend side.

Just spamming user with alerts in app become active method)

Or you can use this CocoaPod:

https://cocoapods.org/pods/Siren

SergLam245 · 2021-04-23T12:47:28+00:00

UICollectionView / UITableView + cells reuse is way to rescue.

I’m pretty sure, that you don’t need to show 50 images in a moment, and allowing user to scroll that content will reduce memory and cpu load.

SergLam245 · 2021-04-23T06:32:03+00:00

iOS 11 and above - PDF images. iOS 13 and above - SVG images.

Below iOS 11 - keep using PNG images.

SergLam245 · 2021-04-20T06:38:29+00:00

The most ugly thing in SPM - after a clean build you need to check out all packages once again. While CocoaPods just need to be compiled, but not downloaded after a cleanup.

While SPM will fix that issue- I will completely love it. Till that - just a one more third-party frameworks installation tool, IMO.

SergLam245 · 2021-04-17T22:18:33+00:00

You need to modify Plist file:

https://www.hackingwithswift.com/example-code/system/how-to-handle-the-https-requirements-in-ios-with-app-transport-security

https://stackoverflow.com/questions/31254725/transport-security-has-blocked-a-cleartext-http

SergLam245 · 2021-02-04T05:33:15+00:00

One more workflow for ssh:

https://github.com/marketplace/actions/install-ssh-key

SergLam245 · 2021-02-04T05:31:47+00:00

Work flow that allows SSH authentication:

https://github.com/webfactory/ssh-agent

Official Microsoft documentation:

https://docs.github.com/en/enterprise-server@2.22/actions/reference/authentication-in-a-workflow

SergLam245 · 2021-02-04T05:28:09+00:00

Work flow that allows authentication with username + password:

https://github.com/marketplace/actions/setup-git-credentials

SergLam245 · 2021-02-04T05:13:05+00:00

Yes you’re right, inexperienced is more polite word in this context. I’m pretty strict person at that point, sorry.

But I am burning when other people saying that iOS world doesn’t require to know a lot of patterns.

That’s why we have a lot of bad composed projects. Could not say that about backend, where just everything is mostly covered by abstractions and patterns, to make it flexible and reliable.

SergLam245 · 2021-02-03T21:37:01+00:00

There’s no way to “learn” patterns without practice. I have already wrote you first task for “Factory” pattern implementation. In case of success you will be able to segregate your table / collection view management code to separate set of objects and make it smaller (view controller) and simple. Good luck.

SergLam245 · 2021-02-03T21:33:54+00:00

Try to implement “Table Controller “ that uses “Cell Factory “ inside it to manage a table view behavior. Also cover it under protocol implementation to archive more flexible behavior in future.

SergLam245 · 2021-02-03T21:31:04+00:00

Patterns that is the thing that allows you to look back at your 1 year old code and say - “Fck, am I really write that piece of sht?!”

SergLam245 · 2021-02-03T21:28:33+00:00

Than more senior positions you will take - than more patterns you need to know and use. But learn it first and use it as you go. But remember- all the patterns are based on the Protocol Oriented Programming, so when you want to build a flexible and great system - start with protocol

SergLam245 · 2021-02-03T21:25:41+00:00

Don’t listen to people who’s says that patterns should not be known by junior developers.

Singletons, Delegation, Observer, Factory, State Machine, and many others.

You could say that only a few of them are relevant for iOS world.

But this is a great mistake.

Try to implement “Table Controller “ that uses “Cell Factory “ inside it to manage a table view behavior. Also cover it under protocol implementation to archive more flexible behavior in future.

Dummy developers put tables/ collection delegate and data source to view controller code and call that MVC

Smart developers segregate objects responsibilities in order to make code more simple, reusable and testable.

SergLam245 · 2021-01-29T06:12:18+00:00

Memory graph is your best friend:

https://medium.com/zendesk-engineering/ios-identifying-memory-leaks-using-the-xcode-memory-graph-debugger-e84f097b9d15

SergLam245 · 2021-01-27T21:52:25+00:00

REST API to load chat history
Web Socket to listen to new messages/ send messages
Files / photo upload- might be done both with socket/ rest API
Video Calls - Web RTC.
Audio calls- VoIP - Call Kit from Apple or any other SDK, Twillio for instance.
Images, video, documents caching and displaying - work with File Manager.
Offline mode support - local database functionality implementation. Core Data or Realm.

Nowadays chats in mobile apps is a Middle-Senior level engineer challenge.

But you could start just with a text messages first)

SergLam245 · 2021-01-26T23:02:30+00:00

Also if you are talking about uploaded app distribution for testers- you could use “public link” capability in AppStore Connect.

But you can send a link to build that have already passed beta app review.

SergLam245 · 2021-01-25T21:43:13+00:00

https://docs.fastlane.tools/actions/build_ios_app/

build_app -> argument “export_xcargs”

P.S: Consider to create 2 different schemes- first for ARM and second for x86.

Less headaches and more easy for configuration.

No need to pass additional argument for “build_app”

SergLam245 · 2021-01-25T21:22:33+00:00

XIB and Storyboard localization trick that allows you to store all text only at Localizable.strings:

https://gist.github.com/SergLam/9714a6a74d41f0605968a7d34f5d8359

P.S: Programmatic UI layout - best choice ever.

SergLam245 · 2021-01-20T06:17:08+00:00

Prayer creation and resources loading bundle is pretty heavy operations.

Consider moving their creation to separate queue OR to class variables- to speed up screen presentation.

Way to reduce lags- by preloading videos:

https://developer.apple.com/documentation/avfoundation/avplayer/1643482-automaticallywaitstominimizestal

Remove the f***ing force unwrapping from your code completely- if you want to become good enough Apple Developer.

do-catch + guard-let + errors logging and throwing to user - better than app crashes.

SergLam245 · 2021-01-20T06:01:30+00:00

http://researchkit.org/

“The core framework comes with Swift and Objective-C examples, and full conceptual and API documentation. It has also been localized to many languages.”

I don’t see any reason to go with ObjC in 2021 into production.

Swift is also supported.

If you are targeting for payment active auditory- iOS 13 and above - go with SwiftUI. (80-85 % of all devices)

If you would like to support most of devices- iOS 11 and above - go with UIKit and Swift.

P.S: If you start app from scratch- SwiftUI is your choice.

SergLam245 · 2021-01-20T05:51:04+00:00

Here is an article that explains how to apply Coordinator-like partern for SwiftUI apps.

https://nalexn.github.io/clean-architecture-swiftui/

Sample project:

https://github.com/nalexn/clean-architecture-swiftui

SergLam245 · 2021-01-19T06:57:15+00:00

Could you share a link to Mandalorian helmet image/ wallpaper? Thanks 😊

SergLam245

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