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After nearly ten years of development, Android technology optimization is changing with each passing day. Now Android 10.0 has been released, and Android system performance has been very smooth, which can be completely comparable to iOS in terms of experience. In the hands of major manufacturers, changing the source code and customizing the system made the Android native system become a mixed bag, and then in the hands of different levels of development engineers, because the technical level is uneven, even if many mobile phones are running and the software performance is very high. , There is still a lag when opening the application.
APP performance optimization has become a comprehensive quality that developers should have, and it is also a guarantee that developers can complete high-quality application works.
Ali P8 is the big boss, yes, it is the big boss. It took a whole week for National Day to optimize the knowledge points of Android-360° all-round performance, as well as WeChat, Taobao, Douyin, Toutiao, Gaode maps, Youku, etc. The practical experience of 10,000 users APP in performance optimization has been integrated into a set of systematic knowledge notes PDF, from theory to practice, involving all the knowledge points of Android performance optimization, up to 721 pages of e-book! I believe that after reading this document, you will have a more systematic and in-depth understanding of the Android performance tuning knowledge system and various solutions.
Due to the excessive content of the document, in order to avoid affecting everyone's reading experience, only part of the content is shown in screenshots. The 721-page detailed and complete version of [Android-360° Performance Tuning] document collection method: like + follow, then private message The keyword [666] can get a free way to receive it!
Take a look at the following real interview questions, can you answer them all?
- What is the relationship between HttpUrlConnection and okhttp?
- What are the characteristics and shortcomings of okhttp, and what design patterns are used?
- Talk about the principle of okhttp
- How okhttp handles network caching
- Why are the thread pool parameters in okhttp set like this?
- How to design the network request framework by yourself?
- Talk about the advantages of Glide
- What are the three levels of cache in Glide?
- How to control the size of Glide memory cache?
- Do you know how the active cache does it? Why should we divide the hierarchy in this way? What are the benefits?
- ……
Friends who have recently gone out for interviews should know that the interviews are now full of in-depth technical questions from beginning to end. Although those questions seem to be available online, the interviewer is basically based on yours. The answer continues to deepen. If you don't really have a certain understanding of the technical principles and underlying logic, you can't pass.
This is also the source of the majority of Android developers' feeling that " make rockets for interviews and screw the screws at work ".
So, fundamentally speaking, the level of technology is the core reason that determines whether you can pass the interview . If you have a good answer in the interview, you can get at least 7 offers from 10 companies. And generally can give a higher salary and benefits.
Digression
In any case, no matter what kind of interview it is, if you want to avoid being abused by the interviewer, you have to max out the interview questions and make a comprehensive preparation. Of course, in addition to this, you also need to lay a solid foundation in peacetime. In this way, no matter how the interviewer digs into his own knowledge, you can still cope with it~
Here I have prepared for you a set of advanced learning videos and interview special information packages that I have collected and summarized since I worked and participated in large and small interviews . Click here to share with you for free. If the environment is not good, the interview can go smoother, I hope it can help everyone~
Finally, if Ma Huateng gave you Tencent for one day, what would you do? Welcome to discuss in the comment section.
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Finally, if Ma Huateng gave you Tencent for one day, what would you do? Welcome to discuss in the comment section.