Preface
You still need to not be nervous when you are looking for a job. There are not many contacts in our industry, and it is inevitable that you will be nervous when you see the interviewer. The main reason is that you are afraid that the interviewer’s questions will not come up. At that time, don’t worry. Don’t talk nonsense, just tell the interviewer that I haven’t touched it yet. If I encounter it at work in the future, I can quickly solve this problem, but we have this article, so we won’t It’s the same. Basically, you have to take a proper look at the questions you ask, and you will be able to get the offer soon. I wish you all the best in your work and happy every day~ Okay, here is the topic.
Speaking of performance optimization, I would like to ask, what is performance optimization? What is your understanding?
**First of all, what is performance: **In the same mobile phone, the app with the same function, which runs fast, which is not stuck, and whichever is high performance. Our article is to solve those slow performance problems:
1) We need to find the places with low performance, and solve these places, this is the performance optimization;
2) We need to equip ourselves with the code we wrote at the beginning. It runs with high performance, so this is the design idea and code quality optimization. Whether an app’s performance is good or not, we need to work on two levels.
**The first level: **You need to pay attention when writing code. Make your own code high-performance and high-availability code. This process is to write high-
performance code;
**The second level: **The right has been formed The code uses tools to check code problems, and guides us to delete and modify the code through the checked problems. This process is called tuning.
Most developers know how to write high-performance code? First of all, you need to have a deep code foundation, which is the basis of the code, such as:
The data structure can be written according to the application scenario to meet the special structure of the current scenario. For example, Google has developed sparseArray instead of HashMap for the characteristics of the Android platform. In addition, he has his own unique insights into commonly used algorithms. There are hundreds of questions on LeetCode, so that you can almost achieve the ability to be proficient in the most commonly used algorithms such as sorting and searching dynamic programming.
Furthermore, if efficient algorithms and memory-saving data structures are matched with excellent design patterns that meet application scenarios, these provide a basis for high-performance code.
It doesn’t matter if you don’t understand, you don’t get the essence. Today, let’s appreciate what went viral on the whole network **[Design Ideas and Code Quality Optimization + Program Performance Optimization + Development Efficiency Optimization] **Android Performance Tuning Cheats...
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If you like this article, you might as well give me a small like, leave a message in the comment area, or forward and support it~