beginning
People often ask: "Is there a prospect for learning Android development now?" My opinion is that now the market has stabilized and the requirements for developers are getting better and better. This does not mean that there is no prospect.
Mobile development is not equal to App development. All new technological waves can actually be integrated into the mobile development system, such as IOT, audio and video, edge computing, and VR/AR. What we have to do is to lay the foundation and be ready to fight at any time. Secondly, from the mentality, I think we must not waste time on entangled problems, but on solving problems. "King of Glory" and "Eating Chicken" cannot solve our anxiety. Only by embracing changes can we have a future. Let us encourage each other.
There are still a lot of mid-to-high-end positions in mobile recruitment. After reading the Android recruitment requirements on the drop-down tick, most of the mid-to-high-level Android development in Beijing is 15k-30k. How to advance from the beginning?
The fastest way is to learn from the master
But what kind of mobile development talents do companies need? What else can be done in mobile development? What are the technologies that we mobile developers must master before they are eliminated?
Consecrate the above sutra~
one side:
0. After introducing myself, talk about the project, from the first to the last;
1. Asked what are the common layouts;
2. What are the Activity life cycles, and under what circumstances will they be called back;
3. Ask about inter-process communication, binder, pipe, socket, etc.;
4. Ask about the delivery of View events, activity-window-decorview-view;
5. How the event is transmitted from the finger to the activity;
6. How are LongClick and OnClick triggered respectively;
7. Talk about the Java class loader, what are the Android class loader, and what is the Android top class loader;
8. How to load a class by yourself without letting the parent loader load it, if you load it yourself, how to resolve the references of other class loader;
9. Talk about memory optimization (memory leaks, large object optimization, etc.);
10. Talk about openGL (take an example, make a picture in picture);
11. Talk about netty (mentioned in the previous project), based on what threading model, why can carry high concurrency;
12. Talk about what you are best at (talking about x86 project transplantation, algorithm optimization);
13. Write a sorting algorithm, how much time complexity is, how to optimize it (written merge, said Garhill);
14. Write a commonly used animation.
Two sides:
1. Introduce yourself?
2. Find the Kth largest element in a large array?
3. Project related?
4. What language are you good at? Scripting language?
5. Three handshake?
6. What is the length of the UDP data packet?
7. Research experience?
8. Recently read books?
9. Knowledge of Linux environment?
10. What are the status of the process?
11. What do you think is your advantage?
12. What difficulties do you encounter in the usual learning and development process?
13. How many papers have been published?
14. The difference between process and thread? Thread Pool?
15. What issues should be paid attention to in multi-threading?
16. What do you want to ask?
Three sides:
1. Project? Project difficulty? How long did it take?
2. What are the shortest path algorithms? If the speed is not enough, how do you optimize?
3. Which books are you reading recently?
4. What technologies do you usually pay attention to?
5. Understanding of processes and threads? When to use processes and when to use threads?
8. What are some of your usual study habits?
9. Team communication skills?
10. The most difficult thing encountered?
11. What are your advantages? What are the disadvantages?
13. How to choose OFFER? What factors are considered?
14. What do you want to ask?
At last
Share an advanced learning route system for Android programmers who have been working for more than 1 to 5 years, hoping to be able to meet those who are still engaged in Android development but do not know how to improve themselves, and are still confused!
- Alibaba P7-level Android Architect Technical Mind Map; Check for leaks and fill vacancies, and systematically study and improve ( click my GitHub for details )
- **Full set of systematic high-level architecture videos; **Seven mainstream technology modules, video + source code + notes
If you need to structure the study notes map, you can click on my GitHub to receive
There are many technical experts and experts in the group. If you have any questions, you are welcome to communicate with all netizens. The group still shares high-level Android learning video materials and interview materials for free from time to time~
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There are many technical experts and experts in the group. If you have any questions, you are welcome to communicate with all netizens. The group still shares high-level Android learning video materials and interview materials for free from time to time~