Some people say that for us programmers: every year that passes is like a reminder of life .
The 35-year-old hurdle is a fate that every programmer cannot escape. Every year that passes, they are one step closer to this hurdle.
So everyone is very anxious, and this anxiety is exploited by various self-media, public accounts, blogs and other platforms. Every year, people say that the Internet is going to be cold again, that a certain company has laid off people on a large scale, and that Android development is not good. This kind of negative news is endless.
Is Android really dead? From the perspective of the larger industry environment,
With the development of technology and changes in the market, competition in the programmer industry has intensified, especially with the popularity of artificial intelligence and automation, many traditional programming jobs have been replaced. It is indeed a fact that companies of all sizes are laying off employees, and it is also a fact that the capital market is less enthusiastic about the Internet industry. However, I don't think this means that Android development has come to an end, or that programmers' careers are at risk .
In fact, due to its open source nature, the Android system has been widely used in various devices and fields, including mobile phones, vehicle systems, intelligent robots, etc. The development of these application fields provides more opportunities for Android developers. However, with the development of technology, the market's requirements for Android developers will become higher and higher. We need to continuously improve our skills and knowledge to adapt to market changes.
In the current general environment, I think most Android developers would like to "go deep into the framework source code" to learn. For many people, reading the source code is a big problem, and it is very easy to give up halfway.
As an Android application layer developer, I would like to provide you with a few learning points that are frequently asked during interviews and are relatively easy to learn:
Four major component startup processes
Application startup process
System startup process
Audio related content
Although it seems to be just these four small points, it will take at least half a year to actually learn it, because the content involved is both large and deep.
How to learn Android Framework? It has become an urgent question for many people. Regarding how to learn Android Framework development knowledge, developers who are still confused can refer to this advanced document "Android Framework Source Code Development Manual", which is shared with you today:
Due to the excessive content of the document, in order to avoid affecting everyone's reading experience, only part of the content is shown in screenshots. There is a free way to obtain the detailed full version at the end of the article! (There are also small benefits for using the ChatGPT robot at the end of the article!! Don’t miss it)
"Android Framework Source Code Development Revealed"
This study manual deeply analyzes the Android system source code, explains in detail the initialization process of the Android framework and the working principles of the main components. It aims to introduce the core concepts and technologies of the Android Framework through examples and cases, thereby helping developers better understand Android applications. Program design and development. This manual is suitable for programmers with some experience in Android application development. It is hoped that through in-depth study of the Android Framework, it can help developers better understand and master this technology.
Chapter 1 System Startup Process Analysis
The complete startup process of the Android system can be divided into three stages from the perspective of system level: Linux system layer, Android system service layer, and Zygote process model; Knowledge points:
Section 1 Android startup overview,
Section 2 init.rc analysis,
Section 3 Zygote,
Section 4 Interview Questions
Chapter 2 Cross-process Communication IPC Analysis
Binder, as the communication mechanism between Android processes, can be regarded as a driver. In Android, common inter-process communications include system-based ones: phone calls, alarm clocks, etc.; self-created ones like WebView, video playback, audio playback, large picture browsing, etc.
Chapter 3 Handler source code analysis
Section 1 Source Code Analysis
Section 2 Difficult Questions
Section 3 Handler frequently asked interview questions
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