The code really emphasizes quality and not weight. High-quality code is advocated by the current code industry. Of course, writing high-quality code definitely requires a fairly high level of professionalism, which needs to be gradually absorbed and mastered in daily code writing. Who is not learning every day, and the purpose is not to write high-quality code for a certain function.
As a program developer, let me write 10,000 lines of code? ! are you kidding me? (Black question mark face) I guess when I write 200,000, I will suddenly have a question-"Huh? Where's my hair?"
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1. Making stable applications is the key.
As a good Android development, first make it clear that Android is the front end, focus on the UI, and master custom views.
2. Establish a knowledge system
Many people have a little understanding of Android. They are encouraged to go to places like Stackoverflow to find solutions to problems, but you must understand the internal mechanism and reach a system of knowledge understanding . When you build a system, many problems are not complicated. Software Development is precise engineering, not luck.
For example, during the interview, I like to challenge some very outrageous questions from the interviewer. For example, in an EditText, you lose a letter "A". This A is how many Android-specific processes can be displayed on the screen. of. At first glance, this is a boring question. Everyone often thinks that this is a matter of course, but it is not. This question examines your understanding of view layout/measure, rendering, and drawing. If the interviewer can answer If this problem comes up, then I am not worried that you will write out the Android code for Caton.
When I first started developing Android, I couldn’t answer this question, but after a few years, I gradually developed a system to fully integrate these “unnecessary” details. I privately thought it was a necessary condition for a senior programmer. , Any performance optimization is a matter of course
As for other technologies, such as video streaming, it depends on whether you want to be an expert in a certain field or an expert in solving problems. If it is the latter, you need **good data structure + algorithm + code reading + document reading ability , **Understand excellent solutions in a short period of time, and then use them. Doing software engineering is not a PhD. First, solve the needs and then see how to improve.
3. Data structure algorithm, source code, principle mechanism
Many people recommend various books. For Android development, there is no better resource than Google’s official video. They guide you in the right direction and let you have a deep understanding of Android's UI construction and operation mechanism. I have seen many programmers who have written a lot of apps but do not understand the main points. I only feel disappointed and worried. Of course, since the front-end UI is to be done, black magic is indispensable, learning the ever-changing programming ideas, Dagger/React, etc.
If you are in a team, **establish a good learning atmosphere, encourage communication,** at the same time, when being tortured by product managers and designers, understand them and help them understand the characteristics of Android development
New technologies are updated very quickly, and many people worry that they will not be able to keep up with being eliminated. In fact, it is not necessary. **Android is just a tool to solve problems. **You need a knowledge system that is always ready to use this tool to solve problems. Change a tool The same is true. For example, cross-platform development technologies all lead to the same goal. If mobile phones are not eliminated, Android development will not be eliminated.
Also about NDK development, audio and video, WeChat applet, Flutter cross-platform technology, etc. In fact, strictly speaking, the technical aspects of Android can be calculated independently. But they are closely related. Because the company recruits an Android developer, I definitely hope that he can master other skills at the same time to reduce the cost of employment. So these technologies also need to be learned and mastered.
At last
In fact, there are so many knowledge points in Android development, and there are still a few things to ask in interviews. Therefore, there are no other tricks for the interview, just look at how well you prepare for these knowledge points. So, when you go out for an interview, it is good to see which stage you have reached in your review.
The high-frequency interview questions shared by Tencent, Toutiao, Ali, Meituan, ByteDance and other companies in 2019-2021 . The blogger also organized these technical points into videos and PDFs (in fact, it took a lot more than expected Energy), including knowledge + many details . Due to the limited space, the above is just a part of the picture to show you.
Android learning PDF+learning video+interview document+knowledge notes
[Android mind map (skill tree)]
Knowledge is not system? Here is also a sorted out mind map of Android advanced learning, for everyone to refer to a direction.
[Android Advanced Architecture Video Learning Resources]
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[Android Advanced Architecture Video Learning Resources]