Interview notes for Android outsourcing workers for 3 years. You still need to go to a large factory to learn and improve when you have the opportunity. Interview questions for Android Development Int

This year, 5 In January, due to the completion of the company's project , I'm ready to go my own way , Because it's outsourced , So I started the interview , The following is a record of the interview companies I met and the process of each side .

One 、 Guangzhou boguan

This is a company that combines intelligent software and hardware based on hardware , Rich hardware resources , The group mainly makes telescopes and so on , Interview this company mainly in the direction of smart home , At present, there are mature products online , Next, I'm going to do intelligent monitoring app project , Hardware Engineer , Back-end engineer , Hardware , The software is done by itself , Old company , It's still quite complete .

First side

The interviewer looks mature , But it's not as old as me , The question asked is probably the basic content , Let's recall ：

networking

• tcp/ip Three handshake process

• udp understand

• Whether multithreading has implemented itself / How to avoid thread deadlock

Basic aspects

• Android Introduce the four components one by one

• activity Life cycle and usage scenarios for each cycle

• service Starting mode, difference and respective use scenarios

• broadcast Registration method and why there are two methods, their respective meanings and usage scenarios

• contentprovider understand , What can be done .

In terms of projects

• 2D Drawing principle ( This is used in personal projects )

• Customize View The process ( Give a demand on the spot , Say the implementation process )

• Bluetooth communication Decoding packet subcontracting mechanism ( The transmission data is too large ) How to deal with

The second side

The second interview is easier , The interviewer is talking to you , Talking about projects , Talk about your previous experience , Because my first project took a long time , I was also impressed , Just talked a lot , For example, what are the biggest difficulties encountered in the project , How to solve it, wait .

We had a nice chat , And that's it , Neither interview mentioned the question of salary , I found this later when I went back .

Two 、 Guangzhou top gene

First side

This company is located in Gaode land Plaza, Zhujiang New Town , It's closer to where I am now , I learned about it on the official website before , Finally, I didn't know what kind of medical project to do , No matter the , Here is the interview process …

Wait at the front desk , Enter the small meeting room , Two interviewers came in succession .

It seems that the problem of technicians ( Why does it look like , Because the problem seems to have nothing to do with technology )

• Self introduction. ( I always introduce myself in the process from college graduation to the current company Very concise )

• Introduce the following items ( Yiyi's introduction is over )

• Project staffing / Responsible for module completion time

• Why learn software

• A mall project Do it alone How long will it take

At this time, a manager came , The following question is even more outrageous ：

• What do you think your strengths are

• What do you think your weakness is

• If there is 5 Candidates , Why should I choose you

• What two points do you think I will worry about after you enter the job

I don't know what to say , Then there is personal planning , The direction of development , He has his opinion , Of course, I have my own understanding , When he finished, I said , When you're done, it's over , It makes me feel very uncomfortable , The interview process is boring , No technology related , Seems to be doing a personality test , One of my colleagues has undergone a personality test , ok , Don't say that , Today's interview is over , Wait for the result , Prepare for the next interview .

A little interview experience

There are some

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You don't just have to understand , And to be able to express it well , Be able to get the interviewer to recognize your understanding , for example Handler Mechanism , This is an interview question .

Some obscure points , Maybe it only lives in interviews , You don't use it at all in real work , But you need to know what it is .

There are so many knowledge points in client development , There are still so many things to ask about in the interview . So there's no other trick to an interview , It depends on how well you are prepared for these knowledge points .so, When you go out for an interview, you should first see which stage you have reviewed .

So we need to sort out knowledge , Raise reserves

• ** The necessary skills for an architect to build a foundation ：** thorough Java Generic + The notes are simple + Concurrent programming + Data transmission and serialization +Java Principle of virtual machine + Reflection and class loading + A dynamic proxy + Efficient IO

• **Android senior UI And FrameWork Source code ：** senior UI promotion +Framework Kernel parsing +Android Component kernel + Data persistence

• **360° Comprehensive performance tuning ：** Design ideas and code quality optimization + Program performance optimization + Development efficiency optimization

• ** Interpretation of open source framework design ideas ：** Thermal repair design + Plug in framework interpretation + Component frame design + Image loading framework + Network access framework design +RXJava Responsive programming framework design +IOC Architecture design +Android Architecture components Jetpack