Android development interview was badly hit in 3 years, and now the recruitment technical requirements are so high?

A few days ago, I had a private chat with a little partner. I said that recently, I felt that the interview requirements were very high , Very confused, tangled, do not change careers ！

First of all, it's not very It is suggested to change careers , First of all, no line is easy , Secondly, there is no one of their own Learning direction and ideas , Even if you deal with new things later, you may be at a loss ！ If you also have no direction and method for learning , You can look at some of my learning route recommendations ！

Past six months , There is often ⼈ Ask me two questions ：“ Now learn Android Is there any prospect for development ？”“Android What else can be studied in development ？”. These two questions are actually right Should mean the same ⼀ A phenomenon ,⽆ Theory is preparation ⼊⾏ Or just ⼊⾏, still ⽐ More experienced developers , about Android Develop the future of your career , There are ⼀ Some confusion 、⼀ Some anxiety . Why is that? ？

Now think about it. , It has been more than ten years since the development of mobile Internet ,Mobile First It has become AI First. let me put it another way , We are no longer “ Pig on the tuyere ”. The halo and premium of mobile development began to disappear , And is going to AI、 Blockchain and other new fields are transferred . The freshness of mobile development ⾎ The liquid has also become less , The most obvious thing is that domestic fresh students have flocked to AI Direction ！

so to speak , The dividend period of domestic mobile Internet has passed , Today, Android Development is beginning to cool down , Or some people say it's beginning to enter the second half of the mobile Internet . Actually , For us to develop ⼈ For the clerk , Whether it's the second half or the first half , It is important for us to do a good job in technology, refine and deepen it . Yes , Now? Android Development is no longer a problem , however , That's not to say Android Development has been phased out , But rather Android The development of the development has entered a mature period , It's like Web technology ⼀ sample .

With Android Development is becoming more and more standardized , The quality of domestic engineers , And users' requirements for products are becoming higher and higher . This also indirectly leads to our demanding quality requirements for R & D projects , Memory optimization 、UI Carton optimization 、App Performance tuning such as crash monitoring has gradually become a necessary skill for everyone . After work , It inevitably makes us feel that learning is endless , as well as Android Development is also bottomless .

Always said before Android Cold , It's really not that cold , The most important thing for technicians is to improve their technical level , Technology has come up , High paying jobs will naturally wave to you .

However, I often need to interview some Android The engineer , I found a lot of people about Android The mastery of knowledge is still more superficial , For some technical points, just stay stay “ Have used ” Even “ know of ” The stage of , There is even some work 5 More than years Android The engineer .

In fact, for the above situation , Many people have , I want to improve, but I can't start , There is no systematic idea , Recommend this benchmarking Tencent here T9 level Android Senior architect's brain map of advanced route and corresponding learning notes , The content inside is really tailored for small partners who attack big factories ！ therefore , I'd like to share it with you today , It's worth every one of them Android Developers learn and collect ！ These have been sorted out in Github, If you need a full version , You can click the portal directly to ！

Why is this map worth recommending ？ There are mainly these points ：

• The content is video + The form of the document , It's easier to get started than our text course

• Provide practical experience scenarios , Through hands-on practice , Let you understand what you have learned more intuitively

• With the most complete 《Andorid Notes on growth from underlying infrastructure to architecture 》 Content , Let learning be closer to the future practice

These have been sorted out in Github, If you need a full version , You can click the portal directly to ！

Atlas details

This technology map ( It contains documents to explain ), take Android Advanced learning is divided into 9 Stages ：

Android Develop essential underlying technology modules

BATJ These big companies require solid Java Language foundation and underlying principle of virtual machine , This part is Android Most commonly used in development java Language related knowledge . In this , Combined with the Dex File encryption practice and hot repair handwriting practice to let everyone deeply experience Java The importance of language system and in Android The position in the development

FrameWork Source code and UI And jetpack modular

stay Android in ,Framework Refers to the system architecture layer .Framework The Chinese meaning is “ frame ”, In software development, it usually refers to the development framework , On top of the kernel layer in a system , Provide interfaces for top-level applications , Designed to help developers quickly develop top-level applications , You don't have to care about the operating mechanism of the system kernel , Usually Framework Will hide main Functions and other components required by the application , Developers just need to focus on the implementation of functional code . Say something simple. ,Framework The specific work is to android Application developers provide a series of services and services API The interface of .

FrameWork The source code parsing ： Binder+Handler+Zygote+ AMS+ PMS+WMS

UI Deep analysis of the underlying source code ：UI Drawing process + LayoutInflater + Event distribution mechanism + Attribute animation +ViewGroup+ View

Jetpack Practical combat and large factory architecture evolution practice manual

Android Performance analysis and optimization of actual combat scheme

As a Android The programmer , To be honest, we should do a good job in performance , It's not easy . Why do you say that? ? Because there is too much knowledge to contact , Android It's a whole , Pull one hair and move the whole body , It doesn't mean that you can do well only by understanding one module . This 《Android Advanced manual of performance analysis and optimization 》, Let everyone want to enter Android People in the field of system development and optimization , You can get started quickly through this note book , At the same time, it is also a sort of knowledge , Leak filling , Lifelong learning .

• Memory optimization

• Layout optimization

• Startup optimization

• Carton optimization

• Stability optimization

• Power optimization

• Thread optimization

• Slimming optimization

Andorid Advanced audio and video combat module

• Basic grammar

• H264 Video coding

• H265 Coding principle and application

• MediaCodec training

• Opengl And audio and video codec

• actual combat

Android Architects must elaborate on the analysis module of the source code framework

Gradle High level practical module

• Groovy grammar

• Gradle Android The plug-in configuration

• actual combat

Kotlin Entry to mastery module

Flutter2.0 Hybrid development module

• Dart grammar

• Flutter2.0 And UI

• Flutter2.0 Advanced

• Flutter2.0 Optimize

• actual combat

Hongmeng 2.0 System development module

• Ability Components

• Distributed tasks

• Event bus

• Hongmeng thread

• UI Custom control

It can be called nanny level learning materials for the growth from the underlying infrastructure to the architecture ！ The distance from the entrance to the pit is about to lose hair , On how not to lose hair, let's leave it to everyone to work hard , After all, I didn't work hard , Don't cherish ^_