What Every Beginner iOS Developer Should know!

Roadmap to becoming an iOS developer

Introduction:

To become a iOS Developer we need clear concept with some topics first .Today I m listing down those topics and small description about those .Hope it will help you to make your journey easy.

Xcode :

First we need to a IDE for develop Apps .Apple build this great IDE For MacOS ,iOS and all others Apple flat-from development.So Before We Start development we need to know how to use this IDE .Here is a useful article about Xcode :

Xcode Tutorial for Beginners (Updated for Xcode 8.2)

Language — Swift or Objective C :

Apple have Language for develop iOS Apps Objective C and Swift . I personally prefer Swift but you have atlist basic of objective C .

Swift :

Some topics we need to have clear concept . These are

1. Closure
2. Protocol
3. Generic
4. Class and struct
5. extension
6. property observer

Here is Apple official document for Using Swift Language :

Swift.org

UIDesign :

First thing to build an App you have to design app User interface either storyboard ,Xib or Programmatically . So For this we need to know implement of Xcode provided Component or custom component and their functionality .We need to fix these component position by Auto layout on story board or add constraint by programmatically. There this three way to add component on apps screen for design user interface . By

1. Storyboard
2. Xib file
3. Programmatically

We Can give their responsive position by

1. Auto Layout
2. Add Constraint

UIComponent :

Apple Provided some very important component for developer which need in every apps like Button,Label,Text field etc . Here i am listing down these component which we need in every app.

1. Button
2. label
3. Text filed and text view
4. slider
5. tableView
6. collectionView
7. View

Application Life cycle :

iOS App have life cycle .iOS app have 5 state there are : Not running , inactive , active,background and suspended. How and when app go through these five state are called app life cycle . Every iOS Project have a file called app delegate this file manage all these five state :

You can find more information about this important issue on this blog :

The iOS Application Lifecycle

View Controller life cycle :

iOS app foundation an structure is view controller .Every app have atlist one view controller but most of apps have more than one view controller .view controller manage all event and user interface . so We have to clear concept on view controller life cycle how data pass one view to another view and when view will appear and when disappear when initialized.

Here is an article i wrote before about iOS View Life cycle :

iOS View Controller Life Cycle

Architecture Patterns :

Its very important to know about architectural design pattern before professionally start iOS Developer career. Design pattern help us to code testable,manageable ,Reusable and optimize Apps. Here is some architectural design Pattern are most popular and good like :

• MVC
• MVP
• MVVM
• VIPER

Here is a great article about Design pattern :

iOS Architecture Patterns

Network (Data transfer through Network):

Now a day almost 95% of apps connected to internet . App need to pass data over internet (back-end saver )) or download data from internet .So We You need to know how to to connect with internet and call back-end server than download raw data from internet .There is many third party library from connect to internet and also apple have native API For this .Personally i like native thing So you can use apple own API NSURLSession which in included i UiKit.Here is listing of third party API :

• AFNetworking
• Alamofire

Data Parsing :

Transferred data from network are row format. Those data are JSON format or xml format its based of bakedend sarver .Restful backend service provide JSON formatted data and Soap web service provide XML formatted data. So We Need to parse coming data to usable data and when we send data to backend we need to convert data ta to JSON ,XMl formate. For this conversation Apple have own API NSSterilization and Codable protocol.Personally I prefer codable . There is also many good third parity open source API .

• Codable
• NSSerialization
• Argo
• SwiftyJSON
• SWXMLHash
• SwiftyXML

Database:

For the saving data locally we need to know about database . iOS have some native solution for this and this are :

1. SQLite databse with C API or Swift swlite wrapper
2. Use Core data

SQlite come to iOS Direcly we dont need to import or insall if we use code data than also we are using SQlite . If we want to use SQlite by Swift API We can use this useful open source API

• GRDB.swift
• SQLite.swift

Here is artcle how to use SQlite directly and Core data :

SQLite With Swift Tutorial: Getting Started

CoreData basics (Xcode 9 + Swift 4)

Data passing Between View controller to View Controller

Its very neccecary to pass data from one view controller to another view controller .There is several way to pass data view controller to another view controller

1. Using instance property
2. Using segues
3. Using instance properties and functions
4. Using Delegation pattern
5. BUsing closure or completion handler
6. Using NotificationCenter and the Observer pattern

Here is a very useful artcle about passing data :

Passing Data Between View Controllers in iOS: The Definitive Guide

Source Control :

When you are going to work with a team you need to work with source control .Source control or version control is the practice of tracking and managing changes to code

If you very beginner than you can just read this article about version control(source control):

CodeNewbie

Here is a list of Source Control management system :

GIT

CVS

SVN

Dependency Manager :

What is dependency i can explain like this way : Dependency manager two word depencany when we use any third party API and integrate to large app than we need a software manager who will intimidate this API its called dependency manger. There many dependency manger out there :

1. CocoaPods

2.Carthage

3.Swift Package Manager

Here is a article about dependency manager

What are Dependency Managers?

Conclusion

Thank you for staying with me .If this article help you than don’t forget to clap ,share and fallow me .It will give me inspiration.