Lead
Do you want to do Android development, how do you learn systematically? You only need to read this one! ! Why is this one enough? Now CSDN, Zhihu, Nuggets, and GitHub are endlessly popping up. They have been deeply involved in Android development for many years and have summed up a lot of learning and dry goods. But at the same time, there are also many bloggers who are not conscientious, or they have lived out the essence of human beings and reproduced them everywhere like repeaters;
Either they simply talked about their work experience in a simple way, so that readers can't get the real useful information from the sea of resources with uneven quality and high quality. The purpose of this article is very simple. In one sentence: Use the least time and the highest efficiency to make you clear: What do you need to learn if you want to do Android development? Where should you study?
The feature of this article is to present the tedious knowledge to the readers in the form of a series of topics. When you can follow the systematic learning knowledge points constructed by the blogger, congratulations, you have killed the BAT, Byte, NetEase and other major manufacturers. Almost 80% of Android developers. This kind of omniscient pleasure, does it feel that you have become a god in the eyes of others?
First of all, let’s talk about the general interview process for technical positions in Baidu, Tencent, and Alibaba.
- Written test (if introduced, written test can generally be omitted)
2. Telephone interview (one round, there may be a telephone interview may not)
3. On-site interview (3-4 rounds)
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Round 1: Basic technical interview, the content of the interview includes: resume questions, basic computer knowledge, algorithm knowledge/interview questions
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Round 2-3: Advanced technical interview. The content of the interview includes: business-related knowledge, algorithm knowledge/interview questions
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Round 4: Leader interview or HR interview. The content of the interview is mainly the legendary behavior interview (bahavior interview), mainly chatting, and then look at your three views
1. The following is the feeling of the mental journey
1. Resume : Basically do not brush people
2. Written test : The test is relatively wide, as long as the foundation is not too bad, and the character is not too bad.
3. Interview : The interviewer asks based on your resume, so it is not difficult . But he will dig deeper step by step in the field you know to see where your limits are. For example, the technology used in the project, the technical books you have read, and the skills you feel good at are all entry points. He uses more of this to understand your concentration on the technology.
Then there is the algorithm, the basic data structure must be used, and the commonly used sorting and search algorithms must be familiar, and the code will be written.
Then, every detail of the project must be understood, and the technology used must be studied in depth. The reason why I fell on both sides is because too many things are in a state of half-knowledge. The interviewer's evaluation of me is: Many things are not enough if they can be used. You have to analyze the principle in depth, and you need to understand the different Things, but a class of things.
I feel that the initial questions still depend on the interviewer, but it is still an indispensable process to improve my professional skills and thinking.
2. As an Android senior developer, what technologies need to be mastered
Now interviews tend to pay more attention to basics and depth, and there are many new technologies that will be asked, including audio, artificial intelligence, hybrid development, and even low-level and full-stack aspects.
New technologies emerge in endlessly. From kotlin last year to Flutter, technology iterations, will you become complacent?
The number of recruitments on the mobile terminal has decreased, but there are more and more mid-to-high-end positions. There are two days of ice and fire, are you on the edge?
I have been a technical code farmer for many years. I don't want to be content with the status quo. I always want to make a
breakthrough in the project. I don't know how to start?
So in the following I have sorted out some technical points that senior engineers should know from 5 aspects:
1. If you want to become an architect, you need to master the technical points!
①The first stop of the architect's growth: UML modeling
- AOP aspect-oriented architecture design
- Implement Taobao-style login framework
- Application of Forward Engineering and Reverse Engineering in UML Diagram
②The second stop of the architect: Analyze the source code of the Android system without dead ends
- Android Handler source code analysis and its handwritten Handler architecture
- Message linked list principle and reuse mechanism
- Binder core principle and architecture design
- Activity process jump
- Source code analysis of APP startup process
③Android event bus framework design: EventBus ④Component
and plug-in
framework design
⑤Database framework design ⑥OkHttp network access framework design
⑦Glide loading framework design
⑧RxJava2
⑨MVP implementation framework construction
2. As an Android low-level development engineer, what technical points should you master?
①Basic knowledge: linux.MakeFile.Shell syntax
②AndroidStudio compilation So principle ③Audio and
video capture coding
④Opencv principle and application
⑤Core technology of QQ audio and video call mastering ⑥Artificial
intelligence and smart home
3. As mobile development, how can we break through the bottleneck?
Learning custom controls, NDK, architecture design, mixed development engineers (React native, Weex), performance optimization, complete commercial project development, learning technology must not only know what it is, but also know why. Our goal is to become Android Senior engineer
At last
For many junior and mid-level Android engineers, if they want to improve their skills, they often grow up on their own. The learning effect of fragmented systems is inefficient, long and helpless . These architecture technologies are compiled and hoped to have reference to friends of Android development and avoid detours. The focus of this article is whether you have gained and grown, and the rest is not important. I hope readers can keep this in mind.
At the same time, after many years of collection, I have collected a complete set of learning materials and high-definition detailed Android architecture advanced learning maps and notes to share with you for free. I hope to have some reference and help for friends who want to become architects.
The following are some screenshots of the information, full of sincerity: especially suitable for Android programmers with development experience to learn.
Free way to receive materials: click on my GitHub ~
No matter what difficulties we encounter, it should not be a reason for us to give up!
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No matter what difficulties we encounter, it should not be a reason for us to give up!
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