foreword
Recently, many people asked me privately in the background: I have been an Android engineer for several years, and now I am very confused. I want to change jobs but have no goals. I don’t know which direction to develop next.
Indeed, after the Spring Festival, everyone is preparing for the beginning of the new year, whether it is changing jobs or learning to accumulate energy, everything is a new beginning. Android has a wide range of development applications, the largest number of users, and the most mature. Of course, the competitive pressure is relatively greater.
In this job-hopping season commonly known as "Golden Three Silver Four", many people are eager to get a higher salary and want to go to a bigger platform...
But in fact, for most Android engineers, they have not formed a systematic and comprehensive knowledge system. Therefore, 90% of them are folded in technical interviews.
Next, let's share a summary of interview knowledge points of many big factories of old drivers, and let's go!
Summary of interview questions in large factories
From basic to advanced architecture, it includes the questions asked in the interview of first-tier Internet companies such as Tencent, ByteDance, Xiaomi, Ali, Didi, Meituan, 58, Pinduoduo, 360, Sina, Sohu, etc., covering junior high school and senior Android tech point.
Here I will share with you a newly compiled 1932-page "Summary of Android Intermediate and Advanced Interview Questions in 2022" (continuously updated~)
**Content summary:**Including Handler, Activity related, Fragment, service, layout optimization, AsyncTask related, Android event distribution mechanism, Binder, Android advanced essentials: AMS, WMS, PMS, Glide, Android componentization and plug-in, etc. Interview questions and tech stack! Content features: clear and organized, with graphic representations that are easier to understand.
In order to facilitate everyone's reading, the information has been organized into PDF, and the friends who need it can scan the QR code below to add the assistant Miss Sister WeChat to get it for free. ↓↓↓
This 2246-page "2022 Latest Android Factory High-Frequency Interview Questions Analysis Daquan" (continuously updated~) :
This includes the questions asked in the interviews of first-tier Internet companies such as Tencent, Baidu, Xiaomi, Ali, LeTV, Meituan, 58, Cheetah, 360, Sina, Sohu, etc. Familiarity with the knowledge points listed in this article will greatly increase the number of questions before passing the test. The chance of two rounds of technical interviews will help you easily get high-paying offers from big companies.
Android source code analysis
- Android source code analysis - - Resource loading mechanism
- startActivity startup process analysis
- 【 Framework 】 Full analysis of Activity startup process
- Analysis of Binder Principle
Performance optimization related
- Java memory problem and analysis of LeakCanary principle
- Layout optimization for performance optimization
- Bitmap memory optimization in Android
- Matrix Android TraceCanary-卡顿
- The correct asynchronous posture for Android performance optimization
Java related
- Analysis of the usage of four thread pools
- Several ways to achieve thread synchronization in Java
- Java Memory Management: Deep Dive into Java Memory Regions
- Understand Java's strong, soft, weak and phantom references
- What is the difference between HashMap and HashTable?
- Java Interview Questions - Deadlock Ultimate
Kotlin related
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Analyze n Kotlin's lazy initialization from the principle
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Generics are simpler and safer with n Kotlin d Reified
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Top-level functions and properties of the Kotlin family
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The nature of Kotlin coroutines "hanging"
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How resource obfuscation affects n Kotlin coroutines
network architecture
- HTTP resumable transfer (block transfer)
- Implementation of HttpDns access and global replacement
- Retrofit principle analysis
- OkHttp principle analysis
- RxJava principle analysis
Plug-in, modular, componentized, related
- Didi Open Source Booster: Mobile APP Quality Optimization Framework
- Understanding of project componentization
- Plug-in (different plug-in mechanism principles and genres, advantages and disadvantages. Limitations)
- Alibaba open source routing framework designed by componentized framework - ARouter principle analysis
Picture related
- Exploration of the internal implementation principle of the Fresco picture frame
- How to implement a picture library yourself?
- Introduction to the principle of WebP and the current status of Android support
- Analysis of the storage and compression of pictures in GIF format
All the above contents have been packaged and arranged for free sharing. Scan the QR code below to add the WeChat assistant of Miss Assistant to get it for free ↓↓↓
finally
Sort out the current mainstream intermediate and advanced advanced books. If you are interested, you can collect it as a reference~
For the intermediate level, we recommend reading the following books:
"Android From Beginner to Master (with CD-ROM)" Tomorrow Technology Edited
"The First Line of Code 2 Android (Second Edition)" Guo Lin
"Advanced Android Development From Little Worker to Expert" He Honghui
"The Light of Android Advancement" Liu Wangshu Author of
"Android Development Art Exploration" Ren Yugang
"Android Heroes" Xu Yisheng
"Crazy Android Lectures" Li Gang
Android Advanced
Advanced and advanced mainly include, design patterns, Java language, performance tuning, data structure algorithms, architecture, NDK and other related books. Those who plan to enter the big factory are strongly recommended!
Design patterns related books:
"Analysis and Practice of Android Source Design Patterns 2nd Edition"
"O'Reilly: Head First Design Patterns (Chinese Version)"
"Design Patterns - The Foundation of Reusable Object-Oriented Software"
Language books closely related to Android:
"Deep Understanding of Java Virtual Machine"
"Android Gradle Authoritative Guide"
"Practical Gradle"
"Kotlin Program Development Essentials"
Performance optimization related to:
"Mobile APP Performance Evaluation and Optimization"
"Android Application Performance Optimization Best Practices"
"Tencent Android Automated Testing Practice"
"Android Mobile Performance Practice"
"High-performance Android Application Development"
Data structures and algorithms are related to:
"Programming Pearl (Second Edition Revised Edition)"
"Code Interview Guide for Programmers: Optimal Solutions to the Problems of Algorithms and Data Structures in IT Famous Enterprises"
"The Beauty of Algorithms"
Architecture related:
"Clean Code"
"The Clean Coder" "The Clean Coder"
"Refactoring to Improve the Design of Existing Code"
Books related to NDK development:
"Android C++ Advanced Programming: Using NDK"
Books about interviews:
"The Eye of Technology: Experience in Alibaba's Technical Written Exam"
"The Beauty of Programming: Microsoft's Technical Interview Experience"
"The Sword Offer: Famous Enterprise Interviewers Talk About Typical Programming Questions (Second Edition)"
"Those Interview Skills That HR Won't Tell You" "
"Programmers You Can't Hurt"