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This article will explain in detail how to optimize the layout in Android, the content of the article is of high quality, so the editor will share it for you as a reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

Why do you need to optimize the layout

Optimizing the layout does not mean that the display effect of the optimized interface is more beautiful and more beautiful. It means to make the interactive experience of the interface better and more streamlined. Because of the limited performance of mobile phones, it is CPU,GPU to draw UI layouts. Therefore, it is necessary for us to write a beautiful and concise layout and take up as few resources as possible.

When we usually play games, we will see that fps is displayed in the game. The higher the value of fps, the smoother the game, and when the fps is close to 60, you can't feel it any more. Fps refers to the number of frames displayed per second, and the number of smooth frames perceived by the human eye is about 60 frames. So, if you want our UI experience to look smooth, you need to reach 60fps, that is, draw 60 frames a second, and one frame needs to be drawn in 16ms. If our layout is too complex for the system to draw a frame in 16ms, the page experience will feel stuttered.

How do veteran drivers optimize ① to use include tags

For UI like TopBar, which we have at the top of most pages, you don't need to rewrite a copy of every UI at all, and code redundancy is not easy to manage. At this point, we can write a separate layout for the part of TopBar, and then import it directly through the include tag where needed.

② uses merge tags

Using merge tags with include tags can reduce nesting, otherwise using include would normally add another layer of nesting.

③ uses viewstub tags

It is a good choice to use viewstub in some scenarios. For example, if you hide part of the View by default, it will be loaded and consume resources if you use VISIABLE=GONE in the traditional way, but it will not be loaded if you use viewstub.

On how to optimize the layout of Android to share here, I hope that the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

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