Preface

Recently, I was swiped by two news, [ByteDance continues to recruit on a large scale, with more than 10,000 school recruits throughout the year] [Tencent’s largest school recruiting has started] Of course, Android jobs are also included, so Android still has many Chance. Combining the experience of previous interview students (mainly school recruitment), I summarized a complete set of Android interview questions analysis. Of course, the analysis of the answers to these interview questions has also been sorted into the PDF manual and received at the end of the article.

I have compiled the interview questions as follows for your reference. Knowing is better than not knowing. I can help you find out if there is no shortage. The following are (interview questions for Tencent, Baidu, Huawei, Sogou and Didi)

Summary of notes

One, the architect must have a Java foundation

1. In-depth understanding of Java generics
2. Explain the basics of annotations
3. Concurrent programming
4. Data transmission and serialization
5. Principles of Java virtual machine
6. Efficient IO

Two, design ideas to interpret the open source framework

1. Hot fix design
2. Plug-in framework design
3. Component framework design
4. Picture loading framework
5. Network access framework design
6. RXJava responsive programming framework design

Three, 360° all-round performance tuning

1. Design ideas and code quality optimization

2. Program performance optimization

Start-up speed and execution efficiency optimization

Layout detection and optimization

Memory optimization

Power consumption optimization

Network transmission and data storage optimization

APK size optimization

3. Optimization of development efficiency

Distributed version control system Git

Automated build system Gradle

4. Project actual combat

Start speed

Fluency

The practice of Douyin's APK package size resource optimization

Full analysis of Youku's responsive layout technology

Network Optimization

Revealing the Secret of the Performance Optimization Project on Taobao Double Eleven

Analysis of source code dependence of AutoNavi APP full link

Sharing of actual combat experience to completely kill OOM

WeChat Android terminal memory optimization practice

Fourth, the Android framework system architecture

1. Advanced UI promotion
2. Android kernel components
3. Essential IPC for large projects
4. Data persistence and serialization
5. Framework kernel analysis

5. NDK module development (audio and video series)

1. Introduction to C/C++ developed by NDK
2. JNI module development
3. Linux programming
4. Low-level image processing
5. Audio and video development
6. Machine learning

Six, Flutter learning advanced

1. Overview of Flutter cross-platform development
2. Building Flutter development environment in Windows
3. Writing your first Flutter APP
4. Getting started with the Flutter Dart language system

Seven, WeChat applet development

1. Mini Program Overview and Introduction
2. Mini Program UI Development
3. API Operation
4. Shopping Mall Project Actual Combat

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How to do a good job interview surprise and plan the learning direction?

The interview question set can help you find out and fill up vacancies, have a direction and a targeted study, and prepare for future entry into a large factory. But if you just read it again, don't study and delve into it. Then this interview question will be of limited help to you. In the end, we must rely on senior technical level to speak.

There are a lot of materials for learning Android on the Internet, but if the knowledge learned is not structured, and when you encounter problems, you just taste it and don’t study it in depth, then it is difficult to achieve real technological improvement. It is recommended to formulate a learning plan first, and link the knowledge points according to the learning plan to form a systematic knowledge system.

The learning direction is easy to plan, but if you only learn through fragmented learning, it is very slow to improve yourself.

At the same time, I also collected and sorted out the 2020 Bytedance, and interview questions from companies such as Tencent, Alibaba, Huawei, Xiaomi, etc., and sorted out the requirements and technical points of the interview into a large and comprehensive "Android Architect" interview Xmind (in fact, it is better than Expect to spend a lot of effort), including knowledge context + branch details .

When building these technical frameworks, I also organized the system's advanced advanced tutorials, which will be much better than your own fragmented learning effect.

Click: "Android Architecture Video + BAT Interview Topic PDF + Study Notes" can be obtained for free~

There are a lot of materials for learning Android on the Internet, but if the knowledge learned is not structured, and when you encounter problems, you just taste it and don’t study it in depth, then it is difficult to achieve real technological improvement. I hope this systematic technical system can provide you with a direction reference.

AB%98%E8%96%AA%EF%BC%81.md) can be obtained for free~