Preface
The following questions are often encountered during interviews by ByteDance or other major companies. If you have good questions or good opinions, please share them.
Reference analysis : Guo Lin, Hongyang
Content Features : Clearly organized, including graphical representations that are easier to understand.
Content summary : Including Handler, Activity-related, Fragment, service, layout optimization, AsyncTask-related, Android event distribution mechanism, Binder, Android advanced essentials: AMS, WMS, PMS, Glide, Android componentization and plug-in and other interview questions and technologies Stack!
Next, we will develop a complete interview question for the ByteDance Android intermediate and advanced interview
Let's take a look at the third side of Tencent Microvision. What did the interviewers ask? How much can you answer?
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Use of ArrayList, and then ask him if he has encountered any pits in the process of using ArrayList;
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I also asked HashMap for about 20 minutes. There are also aba problems, GC algorithms, and generic margins;
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Then I asked why the loop method in the handler did not cause the thread to freeze, and the principle of animation, and asked him if he had actually battled tween animation; what is the most difficult bug collected above bugly, and how to solve it?
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There is also the meaning of MeasureSpec. I asked how to calculate MeasureSpec in general; the difference between custom View and custom ViewGroup; the scheduling process of onmeasure, onLayout, and onDraw; the measure timing of custom View; have you written custom View;
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Asked about the pits in the use of Glide and the pits in the use of EventBus;
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There is also the caching mechanism in the network protocol okhttp, the dex loading process, and the principle of componentization;
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There are also the pits and solutions encountered in the life cycle management of Fragment;
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There are also sorting algorithms, as well as observer mode and singleton mode, and asked about the relationship between abstract classes and interfaces;
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There is also the application startup process, activity startup process, why each application has its own virtual machine, and the relationship between this virtual machine and the JVM.
From these questions asked by Tencent interviewers, it can be seen that many things asked in interviews are based on principles .
"MuMu" even complained to me: "Damn, is it so difficult to interview senior engineers now?"
Yes, the requirements for senior Android engineers are so high, and the salary is also high!
**It is true that the overall environment this year is more severe, but some senior positions are still scarce. ** And most programmers are often slow to advance from junior level to mid-level senior level. Even like my friend, five years of experience still fails to win the offer of senior engineer, sometimes the bonus points for working years are not enough. .
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