As the cornerstone of the Internet, the goal of programmers is usually to enter a major Internet company, obtain a high salary, and work tirelessly for it. Programmers need to keep learning to cope with the uneasiness caused by factors such as low industry barriers, high work duplication, rapid technological updates, and uncertain salary increases.
In the talent pyramid, large companies are at the top, with high salaries and options, attracting top programmers. Mid-sized companies follow closely behind, occupying the waist position. As the number of startups shrinks, the base of the talent pyramid tightens, resulting in less demand for junior programmers and fewer opportunities for fresh graduates.
Under such pressure, many junior students begin to work on projects and research technology in advance. Academic background becomes less important, and strength becomes the key. A Meituan programmer revealed that the previous "non-985, 211 direct pass principle" only lasted for a month because there were not enough candidates in the resume database to screen. This shows that strong programmers, regardless of age, have a competitive advantage.
Therefore, many people in the industry believe that programmers’ 35-year-old crisis is a false proposition. What will be eliminated are "35-year-old programmers who are still writing code at the bottom level". This is the same as the "28" logic in all industries.
How to advance and improve abilities
A P7 programmer from Alibaba Cloud said that programming can only be introduced, and the self-study process divides programmers into different levels. Prioritizing learning content is key. When he encounters technical problems, he will read through the source code to find solutions, or consult cutting-edge papers . He can talk eloquently in interviews about areas he is familiar with and impress the interviewer.
In short, programmers need to improve their skills through continuous learning, in-depth study of source code and papers, in order to stand out in a highly competitive industry.
This is why many Android application developers are now beginning to learn the Framework source code. Whether it is the current market demand for Framework or their own advancement, they cannot do without Framework.
The application layer is called and executed by the Framework layer. Only by knowing how your code is called can you understand the essence of the program. Understanding the essence will help solve new problems encountered. At the same time, there will be more ways to optimize the application layer logic.
At present, the App development of large companies must design the architecture based on the ideas of modularization, layering, componentization, and control. All of this is based on the implementation of the underlying principles of the Android Framework system framework, so knowledge related to it are particularly important.
So how do we learn Framework?
Here is a copy of "Android Framework Source Code Development Revealed"
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
A WeChat group chat robot based on chatGPT has been built to answer difficult technical questions for everyone 24 hours a day. If needed, you can scan the QR code to join the group.
