Many of my readers are reporting that they receive several times as many resumes as they did a few years ago. We must admit that there are too many jobs to go round the Android industry, not to mention entry-level engineers, but even senior engineers. Companies are hiring more and more, and it’s really hard if you don’t have the “real thing.”
I was talking to an Android senior the other day, and he said that many engineers in interviews would stop at “used” or “heard of” specific basic questions. If you don’t dive into the technical details, you will be eliminated in a competitive market.
Here are some of the questions he mentioned. Can you answer them quickly?
- SoftReference(SoftReference) if the memory is insufficient, the SoftReference is reclaimed by a vm. Will the SoftReference result in OOM?
- How is the CANCEL event generated in the Android Touch event? In what scenarios does the CANCEL event occur?
- Handler Looper infinite loop, why not block UI main thread?
- If you say “multithreaded” on your resume, what is your own “working memory” in a thread? Why is it not allowed to use Executors to create thread pools?
You want to say, “Interviews build rockets, jobs turn screws.” In fact, your answers reflect the depth of your technical understanding, as well as your ability to solve problems.
It sounds obvious, but what organizations need is “advanced/senior Android developers” who are responsible for their own code submission and for using every tool.
Better than your opponent in learning, your enemy in sharpening knives, your bestie in weight loss, next door Lao Wang in training waist, we must continue to learn, otherwise we will be beyond learners. There should be a sense of crisis at any time to build their competitiveness. Get yourself promoted from “Intermediate/Advanced Android Development” to “Advanced/Experienced Android development” as quickly as possible.
The previous Android predecessor released a PDF of ByteDance’s 2017 — 2020 Android Interview Questions. This PDF is recommended because it will take you through the interview questions and help you advance to the ranks of senior Android developers.
90% of the content in PDF is what you need to know to move from “beginner/Intermediate Android Engineer” to “Advanced/Senior Engineer”.
To see is to lose!
The directory is as follows:
Chapter 1 Computer basic interview questions
1, Online interview question 1
2. Operating system (⭐⭐⭐) 21
3. Database interview questions (⭐) 23
Chapter 2 Data structure and algorithm interview questions
Data Structures and Algorithms 25
Chapter 3 Java interview questions
1. Java Basics Interview question 33
2, Java and hair questions 81
3, Java Virtual Machine interview question (⭐⭐⭐) 121
Chapter 4 Android interview questions
1, Android basic interview questions (⭐⭐⭐) 140
2. Android Advanced Interview questions (⭐⭐⭐) 208
Chapter 5 Other extended interview questions
1. Kotlin (⭐⭐) 346
2. Big front end (⭐⭐) 346
Scripting language (⭐⭐) 349
Chapter 6 Non-technical interview questions
1. High-frequency problem set (⭐⭐⭐) 350
2. Sub-high frequency problem set (⭐⭐) 352
How do Androids win?
The Android patriarch realized that Android development isn’t just about implementing business logic, it’s about building an architecture. Examples include automated testing, performance monitoring, component decoupling, and so on.
After that, he started to cultivate the architectural awareness of the team, asking, “What is the App crash rate?” “How do I bury it?” “How does communication between the underlying components play in the architecture?” And so on.
But when it comes to architecture, many people’s lack of understanding of Java virtual machines and Dalvik bytecode is exposed. It was difficult to implement performance monitoring, componentization/plug-in, and compilation peg, and I deeply realized the limitations of skill bottlenecks.
These problems are common to 99% of junior and middle level development engineers, and you may or may not be experiencing them.
Improve the strength of Android to break through the bottleneck
In this PDF, you will be introduced to the essential knowledge points and the practical application of this knowledge point in your project by explaining common Android interview topics in detail.
Help you on the basis of the present, to comb and build a new Android development knowledge system. Whether you want to improve your Android skills in the short term, break through a bottleneck in your job, or prepare for an Android interview, you will learn from this experience.
How to do interview surprise, planning study direction?
The question set can help you to find out what is missing and make up for it. But if you just look at it, you don’t study it. This interview question will be of limited help to you. In the end, it depends on senior technical level.
There is a lot of information about Learning Android online, but if the knowledge learned is not systematic, and problems are only tasted, no further research, then it is difficult to achieve real technology improvement. It is suggested to make a study plan first and connect the knowledge points according to the study plan to form a systematic knowledge system.
Learning direction is easy to plan, but if only through fragmented learning, it will be slow to improve yourself.
We collected the interview questions from Bytedance, Tencent, Alibaba, Huawei, Xiaomi and other companies in recent years, and sorted out the interview requirements and technical points into a large and comprehensive Xmind of “bid ali P7, Tencent T3, annual salary of 40W+ Senior enterprise Architect skills growth path”, including knowledge and branch details.
In Xmind, each knowledge topic is equipped with detailed knowledge points and corresponding actual combat projects, which can effectively help people master knowledge and understand principles. Of course, you can also take to check and fill gaps, promote their competitiveness.
When we set up these technical frameworks, we also organized the advanced tutorials of the system, which will be much better than our own fragmented learning effect.
Android essence video after learning is more like a tiger with wings added! BAT/TMD and other major factories must!
Now it is said that the Internet winter, in fact, is nothing more than you get on the wrong car, and wear less (skills), if you get on the right car, their technical ability is strong enough, the company will cost a lot to replace, how can you be fired, are the elimination of terminal business Curd!
Now the market is flooded with junior programmers, this tutorial for Android developers, is at a bottleneck, want to break through their salary, with these, advanced Android senior, architect for you is more like a duck to water!
Of course, there are several masters together collected collation of Android learning PDF+ architecture video + interview document + source notes, and Android development interview topic information, advanced architecture information……
These are the best materials that I read again and again in my spare time.
In short, it is also shared here to help you learn and improve, but also to save the time for you to study in the online search materials, but also to share with friends around to learn together
If you need, you can add Vx: 15388039515 (note: nuggets, need advanced information)
These materials, due to the limited space, here in the form of pictures to show you:
If you need, you can add Vx: 15388039515 (note: nuggets, need advanced information)
If you like this post, give me a thumbs-up, leave a comment or share your support