The advanced path of programmers

In addition to programming , Sometimes I just think , What kind of programmers are senior programmers ？ Or say , What are the characteristics of advanced programmers ？ Working years must not be a key indicator , Many programmers who have worked for many years still cannot write elegant programs . Whether in the Android Development or other fields , Senior programmers must be diligent , Can quickly master a large number of new technologies 、 New framework , Not only understand the principle , We can also apply new technologies to our products . This is an important standard to measure the working ability of programmers , So how can we use technology freely ？ Only practice . Based on this , I want to put some classic cases in my daily practice , Compile a systematic book , For those who want to make progress Android Programmers add more practical experience , This is also the core purpose of writing this book .

Another purpose of writing this book , It's the idea of helping programmers build products , For Technology , Isolated existence is meaningless , Technology can only be combined with demand , Can have its own value . Technicians are in the process of development , Always know what value the completed functions can bring to the company , It is to improve users' access interest , Or to improve the fluency of users , Or something else . When thinking about technology with product thinking , There will be motivation 、 Purposefully learn more valuable technologies , Instead of grandstanding to learn some “ Seemingly useful ” New technology .

besides , And understand the essence of architecture . Some technicians often ask ：“ Why use architecture ？ This will only add extra code , And it will not improve the function or performance , Just complete the necessary development tasks .” This idea is very simple , Because no application is formed at one time , It needs to be iterated continuously , Constantly expanding , At the same time, we need to constantly modify the existing business logic , This will involve the problem of system compatibility . How to modify the new business logic without affecting the old business logic ？ How to reuse the existing business logic to the greatest extent ？ Architecture is the key to solve such problems , An excellent and appropriate project architecture can ensure the stability of the system , When developing new functions or modifying old functions , Not to destroy the existing business system .

The examples in this book are all classic practical examples , Each example represents a kind of skills that need to be mastered in development . This book explains the development theory and practice that need to be mastered one by one from simple to deep , It is divided into seven parts .

◎ Advanced Foundation ： Focus on the analysis and understanding of the source code , Introduce the skills of reading source code , With Activity and View For example , Analyze the basic knowledge from the inside . Readers can also use such methods , Analyze the source code of other system components .

◎ High level control ： Introduce some complex control layouts , namely AppBarLayout、CoordinatorLayout and ConstraintLayout. Through examples , Let readers understand how subviews are combined and interrelated in complex control layout .

◎ Project framework ： Analyze the design idea of Mainstream Architecture , namely Google The recommended MVP and MVVM, also Facebook Of Flux. Understand how these architectures organize and manage large projects , And their advantages and disadvantages .

◎ Responsive programming ： Responsive is a programming idea , When dealing with network requests and functional tests , Projects based on responsive frameworks have better scalability and maintainability , The three musketeers of responsive programming are RxJava、Dagger and Retrofit.

◎ Cool features and exquisite animation ： Realize two slightly complex functions , They are extensions based on third-party controls and system controls ; And achieve two animation effects , Used for page expansion and page switching respectively . For function and animation , Different requirements or styles emerge in endlessly , This part focuses on the sharing of development ideas .

◎ Kotlin And SVG：Kotlin It's used to replace Java High level programming language ,SVG It's used to replace PNG Format image technology , This book focuses on some basic concepts , Concentrate on the main points , In order to facilitate readers' subsequent independent learning .

◎ Testing and optimization ： Share a mainstream automated testing framework , And some common ways to optimize memory and power . The performance and function of the product are equally important , The high quality of the application will also improve the user experience of the product .

These seven parts almost contain advanced Android The whole content of programming , Each part of this book will pass through multiple examples , Guide readers to practice from different angles , Truly master the core development skills of advanced programming . however , The number of instances is limited after all , I hope readers will pay more attention to the development ideas in practice , Not specific code logic , The code always changes , The thinking of solving problems is still fresh . The examples in this book are more from point to area , Readers can read and think at the same time , While writing code , I believe that after reading this book , Must have benefited a lot ; meanwhile , Through the examples of this book, we can solve some common development needs . I sincerely hope that every reader after reading this book , all “ it ' s a rewarding trip ”！

2018 year 7 Month in Haidian, Beijing

attach A number of Frontline senior Android The engineer Recommendation Comments ：

Different from the introductory books on the market , This book focuses on project practice , And introduces the cutting-edge knowledge in actual combat , Such as Kotlin、 Project framework 、 Automated test framework, etc . I believe that this knowledge can help more intermediate engineers to move forward to senior engineers , It's worth seeing. ！
—— Meituan senior Android Development Engineer

This book passes through a large number of examples , Make the obscure and abstract knowledge points clearer 、 Show intuitively , I believe readers will be enlightened and “so easy” Sense of . This book also has a clear introduction and summary of architecture and performance optimization , Help readers improve their technical level , It is suitable for advanced or senior Android Engineers of insight read .
—— Kwai senior Android Development Engineer

The book is simple and profound , From development patterns to commonly used popular frameworks and performance optimization methods , Have carried out in-depth analysis from the outside to the inside , about Android Advanced is very beneficial . This book combines practical cases to explain , Abandoned the boring principle statement , It can be understood by readers in specific scenarios Android technology .
—— Netease cloud music senior Android Development Engineer

This book is about Android The crystallization of learning . The whole book is explained in the form of special topics , It is very convenient for readers to pick up on demand 、 Special breakthrough . In the selection of content, this book not only analyzes the basic knowledge in simple terms , There are also practical discussions on engineering architecture , More right Android hot 、 Explanation of cutting-edge knowledge . I hope readers can not only harvest one topic , We can better understand that the author has both depth and breadth , And on this basis, build the learning method of technology system .
—— Dr. Chunyu is a senior Android Development Engineer

《 senior Android Develop and strengthen the actual combat 》 JD.COM link ：https://search.jd.com/Search?keyword= senior Android Strengthen actual combat

CSDN - Android Basics ：https://blog.csdn.net/caroline_wendy/article/category/2091071
CSDN - Android senior ：https://blog.csdn.net/caroline_wendy/article/category/5990893