Useful Swift Things

Content

• Coding convention
• Design Pattern
  • Delegate
  • Singleton
• Code Structuring
  • MVC
  • MVVM
• UIDesign
• Helper
• API
• JSON
• Third Party Library
• Useful Stuff
  • Show Preview in UIKit(Build UI with Code Base)

Coding convention

set of guidelines for a specific programming language that recommend programming style

Swift Style Guide

• Swift Style Guide

Swift Lint

The way of force you to adapt coding convention

otherwise project build will FAILED

• Swift Lint apply for all project👍

if which swiftlint >/dev/null; then
  swiftlint
else
  echo "error: SwiftLint not installed, download from https://github.com/realm/SwiftLint"
  exit 1
  fi

put .yml file into root folder and apply following code in Build Phases

You can modify(delete) SwiftLint Option with opening .yml file

Shift + Command + . will show the hidden file

Design Pattern

Design pattern is

Check this website for design pattern in Swift

Delegate Pattern

weak var delegate: SomeProtocol?

Singleton Pattern

class SingletonPattern {
    static let manager = SingletonPattern()
    
    private init() {}
}

Observer Pattern

Code Structuring

MVC

MVVM

MVC vs MVVM

M -> Model – Which holds the application data

V –> View – It displays the data that is stored in model. These are visual elements through which a user interacts. These are subclasses of UIView

VM –> View Model – Transform model information/data and it interacts with controller or view to display those informations.

C –> Controller class – It will be there but the responsibility of view business logic has been removed and give to view model

Viper

UIDesign

HIG(Human Interface Guidelines)

• Apple UI Kit

iOS icon

• icon8 you can download icons for your APP

UIdesign inspiration

• dribble
• pinterest
• behance
• pttrns
• awwwards
• flickr
• mobbin

Helper

You can check the file in the follow link

• Email, Message, Call

Usage

import MesaageUI first

import MessageUI

Then use it

    lazy var manager = ConversationManager(presentingController: self, mailDelegate: self, messageDelegate: self )
    
    func sendEmail() -> MFMailComposeViewController {
        manager.sendEmail(feedback: MailFeedback(recipients: ["abcd@example.com"], subject: "Sample", body: "Write body"))
    }
    
    func sendMessage() -> MFMessageComposeViewController {
        manager.sendMessage(feedback: MessageFeedBack(recipients: ["1111111111"], body: "Type here"))
    }
    
    func call() {
        manager.makeCall(number: "1111111111")
    }

API

Various API Site

• rapidAPI

JSON

JSON is a language-independent data format

Which is relative with KEY - VALUE pair

{
    "main": [
        {
            "title": "example1",
            "body": "body1"
        },
        {
            "title": "example2",
            "body: "body2"
        },
    ]
}

JSON parser extension for Chrome

This extension makes JSON more structable JSON parser pro FREE 👍

JSON Decoding

JSONSerialization

Third Party Library

This github contains all the popular libraries in Swift👍

Useful Stuff

Show Preview in UIKit(Build UI with Code Base)

import SwiftUI

struct ViewControllerRepresentable: UIViewControllerRepresentable {
    typealias UIViewControllerType = ViewController

    func makeUIViewController(context: Context) -> ViewController {
        return ViewController()
    }

    func updateUIViewController(_ uiViewController: ViewController, context: Context) { 
    }
}

@available(iOS 13.0.0, *)
struct ViewPreview: PreviewProvider {
    static var previews: some View {
        ViewControllerRepresentable()
    }
}