An iOS senior engineer must have a great knowledge of the skill points (how much do you know?) ）

Objective:

With the development of the Internet and the coming era of IoT, a great deal of mobile development talent is needed. A developer go higher and farther, will stand on the shoulders of ancestors, will continue to study new technology, stand thought highly far, see wide bright future.

With the rapid development of mobile Internet, people who are interested in learning mobile development are getting more and more, and the competition is getting bigger and larger, and there are many things to learn. How to compete in the fierce mobile developers to become a truly qualified senior iOS development engineer? Here's a summary of the great skills you must have to become a mobile iOS developer.

As a developer, there is a learning atmosphere with a communication circle that is particularly important this is my iOS communication group: 638302184, whether you are small white or Daniel Welcome to settle, share bat, a inside questions, interview experience, discuss technology, we exchange learning and growth!

1. Advanced C language, C + + language

The C language is the language (OBJECTIVE-C) Foundation for iOS development, which is also covered in the course of iOS development training. It's important to emphasize that you don't have to be proficient in C + +, but that you have to master the core content of C + + in iOS development.

2.objective-c language

Objective-c is the standard language for iOS development and is a recognized standard for many iphone development engineers and needs to be mastered by the students.

3.iOS SDK Xcode Integrated Development

iOS SDK is the core of iOS development, in this part, students in addition to mastering the essence of Xcode, more important is to master instruments, IOS Simulator, Printer Simulator, accessibility Inspector , Filemerge, Application loader, and other iOS development tools.

4. Persistence of data

　We all know that there are 4 ways to persist data in iOS: Attribute list, object archiving, SQLite and core data, in the application development process, the requirements for data is very high, persistence technology can be automatically optimized to reduce access to the database, improve the efficiency of the app program;

5. Multithreaded Development

Multithreaded development is a particularly important task, even if you are an engineer with years of development experience. To make it possible for junior iOS developers to use multi-threading, it also simplifies complexity. It is recommended to avoid direct manipulation of threads as far as possible, using mechanisms such as nsoperationqueue. Operation objects, GCD, idle–time notifications, asynchronous functions, timers, separate processes, etc.;

6.iOS design mode

MVC, KVO, Notification, Target...action, Sigleton, and delegate are all iOS design patterns that need to be understood during iphone application development.

7. Network programming

Network programming is to learn the iOS development must master the programming skills, here involves synchronous, asynchronous, Http, Htpps, Socket, front and rear interaction, etc., in this part of the specification of processing, directly affect the audit of Apple AppStore.

8.UI programming

Most of the apps in the iOS development process are done with multi-view design. such as single-view controllers, multi-view controllers, and so on. In the development process of iOS game, we also useful common game physics engine such as can cross platform of cocos2d-x or unity3d,box2d etc;

9. Operating system

iOS memory management and tuning

File system and sandbox mechanism for iOS

iOS multithreaded programming (thread,gcd,nsoperation)

iOS Network and server programming (Nsurlconnection,nsurlsession)

Various security mechanisms for iOS systems

10. Network Programming

iOS network send mechanism tuning and optimization (nsurlsession)

Socket programming

Various kinds of protection in network transmission

Tuning optimization for transport protocols

11. Database, Persistence scheme

General Persistence Scenario (Keychain,nsuserdefaults,sqlite,coredata)

Database usage and design (Sqlite)

Data structure optimization, SQL tuning

12. Graphic Image Programming

Drawing of Uikit,core animation and Core text

Core Graphics, Quartz, Media Player, AV Foundation

OpenGL ES, Glkit, SpriteKit, SceneKit, Metal

13. Data structure, algorithm

Basic algorithms and data structures (sort search algorithms, arrays, queues)

Flexible application of more complex data structures (binary tree, graph, etc.)

Complex special algorithms (image recognition algorithms, topological positioning, etc.)

14. Security Solutions

Local data storage security (Keychain)

Authorization and authentication

Transport security (symmetric, asymmetric, SSL)

App code Security

15. Operational capabilities

Analysis and implementation of general business function requirements

Requirements analysis and implementation of important business modules

Architecture, System design and implementation of small and medium sized products

Large-scale product or product line architecture, system design and implementation

Platform-level product architecture, system design and implementation

As a developer, there is a learning atmosphere with a communication circle that is particularly important this is my iOS communication group: 638302184, whether you are small white or Daniel Welcome to settle, share bat, a inside questions, interview experience, discuss technology, we exchange learning and growth!

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An iOS senior engineer must have a great knowledge of the skill points (how much do you know?) ）