IOS SDK的架构

IOS SDK综述

前言:

  这篇文章除了架构没有太多的东西,但是我一直觉得知道SDK能提供什么东西对IOS的整体架构把握很重要,会少走很多弯路。

一 几点理解

官方关于IOS的文档

https://developer.apple.com/devcenter/ios/index.action

这里要提到的是,Apple的文档是深入理解IOS开发的根源,所以,一定要能够看懂文档。另外,Apple建议,能使用上层的库来实现就尽量使用上层的,SDK提供的上层库的效率往往比较高。(毕竟Cocoa经历过那么多年的历史,经过无数锤炼,顺着它来总没错)

本文主要来自官网文档

链接

https://developer.apple.com/library/ios/documentation/Miscellaneous/Conceptual/iPhoneOSTechOverview/Introduction/Introduction.html


二 IOS系统的分层

分层用一幅图来看

技术分享

IOS的底层是基于Unix系统的,所以很多Unix系统的特征,IOS都有。

Cocoa Touch Layer

App Extensions

HandOff

Document Picker

Air Drop

Text Kit

UIKit Dynamics

Multitasking

Auto Layout

Stroyboard

UI State Preservation

App Push Notification

Local Notification

Gesture Recongnizer

Standard System View Controller

 Cocoa Touch FrameWork 

Address Book UI FrameWork

EventKit UI FrameWork

GameKit FrameWork

iDaFrameWork

MapKit FrameWork

Message UI FrameWork

PushKit FrameWork

Twitter FrameWork

UIKit FrameWork



Media Layer

Graphics Technology 

UIKit graphics(BeizerPath)

Core Graphics FrameWork

Core Animation

Core Image

OpenGL ES and GLKit

MEtal

Text Kit and Core Text

Image I/O

Photos Library


Audio Technology 

Media Player Framework

AV Foundation

Open AL

Core Audio

Video Technology

UIImagePickerController

AVKit

AV Foundation

Core Media

Media Layer FrameWork

Assets Library Framework

AV Foundation Framework

AVKit Framewrok

Core Audio

Core Audio Framework

Core Graphics Framework

Core Image Framework

Core Text Framework

Core Video Framework

Game Controller Framework

GLKit Framework

Image I/O Framework

Media Accessibility Framework

Media Player Framework

Metal Framework

OpenAL Framework

OpenGL ES Framework

Photos Framework

Photos UI Framework

Quartz Core Framework

Scene Kit FrameWork



Core Servie Layer

iCloud Storage

Block Objects

Data Protection

File-Sharing Support

GCD

In App purchase

SQLite

XML Support

Core Service Framework

Accounts Framework

Address Book Framework

Ad support Framework

CFNetwork Framework

CloudKit Framework

Core Data Framework

Core Foundation Framwork

Core Location Framework

Core Media Framework

Core Motion Framework

Core Telephony Framework

EventKit Framework

Foundation Framework

HealthKit Framework

HomeKit Framework

JavaScript Core Framework

Mobile Core Service Framework

Multipeer Connectivity Framework

NewsstandKit Framework

PassKit Framework

Quick Look Framework

Safari Service Framework

Social Framework

StoreKit Framework

System Configuration Framework

WebKit Framework


Core OS Layer

Accelerate Framework

Core Bluetooth Framework

External Accessory Framework

Generic Security Service Framework

Local Authentication Framework

Network Extension Framework

Security Framework

System

65-Bit Support


未完待续...

希望我能把大部分IOS框架学习完并完成相关的Blog。

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