Shulou(Shulou.com)06/03 Report--

In this issue, the editor will bring you about how to learn Android Studio development. The article is rich in content and analyzes and narrates it from a professional point of view. I hope you can get something after reading this article.

Body Java

Collections: use scenarios, source code to read

GC mechanism

Virtual machine

Object memory allocation

To learn Android well, you must have a solid foundation in Java (and now, of course, Kotlin). There are only four points listed here, but the Java system is very large, of course, more than these important and difficult points, listed are commonly used or common in actual projects and interviews.

Android common / important classes

Activity

Handler

HandlerThread

AsyncTask

Binder

Android these classes are more frequently used in programming, so I intend to read the source code of these classes carefully. And these categories are often asked in the interview, such as Activity startup process, Binder communication principles and so on, so it is very valuable to read!

Android basic technology and knowledge points of high-frequency interview

View event delivery

View drawing process

The use of SurfaceView

IntentService replaces the scene of Service

Service keeps alive

Android serialization methods and differences

These knowledge points are relatively basic, but they are also very important! Unfortunately, it is rarely used in practical projects, so I often forget this knowledge. So I intend to write it into an article to deepen my impression.

NDK and JNI

Speaking of this gives me a headache, I believe many people like me, if only call C layer interface is fine, if you want to write C code, it will be very embarrassing. But we can't always run away from difficulties, but face them! So I made up my mind to cross this hurdle in my heart!

Algorithm and data structure

Queues, stacks, linked lists, digraphs

Sort

Find

Red and black tree

Several arithmetic books at home are full of dust. The points listed are not difficult and need to be basically mastered, but I always forget them, forget and read them again and again, but I still can't remember. So I also plan to write articles to enhance my memory. In addition, if you do application-level development, mastering these knowledge points is basically sufficient, after all, the collection of Java also provides sorting interface. But it still needs to be mastered, after all, different algorithms use different scenarios.

Plug-in / hot repair

As a skill that must be mastered in the advanced level of Android, this will not be embarrassed to talk about its own Android development. After reading the source code of RePlugin for a month, I feel that Daoxing is not enough. A lot of code processing or adaptation seems to be incomprehensible, such as the mechanism of Binder. So this needs a lot of knowledge as a support to complete the understanding, and fight again in the future!

Third-party excellent open source library

RxJava

Glide

OKHttp

"RTFSC (Read The F**king Source Code)". Everyone has their own programming style, if you do not learn from, do not refer to other people's code, the vision is always so small, it is difficult to further improve the realm of programming. So it is necessary to read other people's excellent code!

Common architectural patterns of Android

MVC

MVP

MVVM

Decoupling! Decoupling! The top priority in the use of Android's architectural pattern is decoupling. It's not difficult to develop code, but it's the hardest to maintain it. If the code is decoupled, the maintenance cost is reduced and the work efficiency is naturally improved.

Gradle and Groovy

I believe that most people now use Gradle as a very powerful build tool, and I think it can replace the compile-time annotations of Java even more. Because even files can be modified during compilation, it is very powerful, so it is also worth learning.

General skills

TCP/HTTP

SQL

Automated testing

Grab the bag

In addition to the unexpected knowledge of Android, you also need to master some general skills. After all, only if you know more can you have the courage to hold back. Haha.

The above is the editor for you to share how to learn Android Studio development, if you happen to have similar doubts, you might as well refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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