As an iOS programmer, what are the core 60% competencies? How many core skills does a qualified iOS programmer need to master? How big is the gap between you and a professional development engineer? Do you have the ability to develop an iOS app that is functionally complete and efficient? Take a look at the following iOS programmer 60% Core skills of the inventory, check the leak fill it!
1. Language BasicsNo matter what kind of development, can not be separated from programming language learning. Objective-c is the official language of iOS and is the basis for learning and understanding iOS development. Lofty high-rises on the ground, will OC study thoroughly at least need to understand the C language Foundation, OBJECT-C Foundation, OC operation characteristics, object-oriented concept, protocol/block/category, memory management and so on.
Also, as a solid iOS engineer, it is important to be familiar with Swift, and Swift may be a future alternative to OC language.
2. Interface DevelopmentAs someone once said, what you see and touch in the iphone is UIView, so UIView has a very important role in iOS development. Can you answer these questions? 1, how to use constraint to control the UIView? 2. What property changes in UIView can be rendered by animation?
Addressing these issues requires an in-depth understanding of interface development. In the primary interface development, engineers need at least one app page to learn more about how the various interface elements are being used, and how complex layout arrangements can be made between all facets of the community, and the following are some of the core skills needed:
· Common Controls Use · Commonly used Uiviewcontroller container use · Layout Basics (Manual layout and AutoLayout) · App life Cycle · Incident Response Process · Simple gestures
Advanced interface Development, engineers in order to achieve "product-level" excellent interactive experience, unique animation effect, to provide more rich features, need to understand the gesture and events, drawing, animation and other advanced technology, as well as audio and video, camera albums, positioning, sports and other common iOS features.
Animation· UIView Animation Caanimation
Drawing· Coregraphics Quartzcore OpenGL ES
Audio and video· Audio Toolbox CoreAudio MediaPlayer
Cache· Universal Cache Implementation · Network cache
Learning basic interface design is also necessary to understand the basic design and the use of sketch. IOS Human Interface Guide is also a must-read before development.
3. What is the difference between concurrent programming "UIButton Engineer" and a truly qualified IOS development engineer? An excellent iOS engineer needs to know about file storage, thread management, how to reasonably store user data, how to use threading model rationally, and how to efficiently initiate network requests. The core skills of the Concurrent programming section are 3 points, do you know it all? · GCD (for use with GCD and block) · Nsoperation (use of nsblockoperation and Nsinvocationoperation) · Runloop (automatic release pool, delay callback, touch events, screen refresh, etc.) with Runloop
4. Project-related whether it is enterprise developers or independent developers, in demand, interaction, vision, development of a series of steps, will face the app testing, optimization, on-line, version update issues, a good iOS developer in the face of this problem, need to have engineering-related knowledge, Ensure that our app is developed for long-term operation and optimized for efficiency. What we must understand in this section are the following parts: · Common third-party libraries · Version management tools and common workflows · Third-party Library management tools · Debug Skills · Performance Tuning · Unit Test
As an iOS programmer, what are the core 60% competencies?
