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The main problem in the Android industry is that there are too many junior Androids and too many programmers who can write xml and Activity. The junior and intermediate programmers face great competition, and the status quo is biased towards advanced developers. More and more junior and intermediate Android programmers cannot find a satisfactory job, or even a job at all! So many people think that Android is going to be cold, and even change their careers and learn other technologies from scratch.
The current Android recruitment requirements are no longer the requirements many years ago.
Hungry? Android post side
- 1: Parent delegation mechanism?
- 2: Principle of plug-in?
- 3: Garbage collection mechanism and its advantages and disadvantages?
- 4: What is the difference between PathClassLoader and DexClassLoader?
- 5: Talk about Binder?
- 6: Activity life cycle after Android rotates the screen, where is the Bundle stored?
- 7: Event distribution mechanism?
- 8: Handler implementation?
- 9: Java memory?
- 10: OkHttp design pattern?
- 11: Algorithm.
- 12: The difference between Http and Https
- 13: The specific implementation principle of HashMap, the difference between HashMap and Hashset
- 14: Java's garbage collection mechanism
- 15: The principle of JVM and online tuning
- 16: The difference between string, stringbulider, and stringbuffer
- 17: Java design patterns
- 18: Handwriting the dichotomy sorting algorithm on white paper, I did the original question on lintcode for this question
- 19: What are the ways to keep the process synchronized
- 20: How to avoid deadlock
- 21: What are the common data structures
- 22: Leetcode Original question: Algorithm for finding the Kth node from the bottom of the singly linked list, the interviewer requires handwriting
Baidu Android post side
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1: Algorithm: Find the number that appears more than half?
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2: How does HashMap work?
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3: The principle of hot update?
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4: What is the difference between AstncTask+HttpClient and AsyncHttpClient?
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5: Https handshake process?
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6: The principle of RecycleView?
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7: How to use RecycleView?
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8: What is the principle of Hybrid communication? Have you done any research?
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9: The principle and solution of ListView picture loading disorder?
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10: Symmetric encryption and asymmetric encryption?
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11: What is the difference between TCP and UDP?
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12: TCP guarantees reliable means?
At last
For many junior and intermediate Android engineers, if they want to improve their skills, they often grow up by themselves. The unsystematic learning effect is inefficient, long and helpless. It’s normal to be discouraged after a long period of time, with huge time cost and effort, without seeing the desired effect.
Therefore, you must find the most suitable way for you to study, and have a way of thinking, otherwise you will not only waste time, but also delay future development together.
If you are stuck at the bottleneck of lack of learning resources, then just in time I can help you. The above knowledge notes are all free to share. If you need to get knowledge notes, you can click on my GitHub to get them for free.