In recent days, the Bureau of Statistics has also released employment-related data. There are more than 6 million unemployed youths nationwide . In the face of this data, we can think that the actual number of unemployed people will definitely be much higher than the published data, especially the statement that "one week Working more than one hour" is also included in the scope of employment.
On the other hand, there is a group of Android developers who have gained a firm foothold in such a pessimistic environment, and that is Android Framework development.
From the perspective of recruitment demand and job salary, the popularity of Framework development has never declined.
The Framework is also very useful in the field of app development, such as privacy protection, push notifications, sound settings, memory management, location services, custom system interfaces , etc. I believe these tasks are applied in our daily development.
However, these tasks require developers to have a deep understanding of the internal mechanism and underlying code of the Framework, and they need to have system-level permissions to complete.
According to the development prospects of Android Framework searched by Zhiyouji from March to June this year, the highest growth rate of this position in May reached 1233%, almost doubling the growth rate, exceeding the growth of other positions in the Android industry.
Some people may think that the Android Framework is relatively simple, but there are very few people who really understand the Framework . Years of experience in application layer development has made me only have heard or contacted the system source code Binder, Handler, AMS, WMS, and PKMS, but have not had an in-depth understanding. This directly leads to the difficulty of getting started, confusion, and the risk of being eliminated.
If you haven't mastered the Framework yet, and want to get a thorough understanding of it in the shortest time, you can refer to "Android Framework Core Knowledge Points" , which includes: Init, Zygote, SystemServer, Binder, Handler, AMS, PMS, Launcher... ... and other knowledge point records.
"Android Framework Study Manual":https://qr18.cn/AQpN4J
- Boot Init process
- Start the Zygote process at boot
- Start the SystemServer process at boot
- Binder driver
- AMS startup process
- The startup process of the PMS
- Launcher's startup process
- The four major components of Android
- Android system service - distribution process of Input event
- Android underlying rendering-screen refresh mechanism source code analysis
- Android source code analysis in practice
