What happens if uniapp swiper dies when switching too fast?

When I recently used uniapp to develop a small program, I used the swiper component to implement the carousel function. However, during testing, it was found that if the user quickly swipes to switch pictures, the mini program will freeze or freeze.

At first I thought it was a problem with my own code, so I checked the code carefully, but I didn't find any problem. So I checked the information online, and it turned out that this was a bug in the swiper component of uniapp when sliding quickly.

After investigation, it was found that this problem was caused by insufficient rendering performance of the swiper component when it made a rapid left-right sliding transition. Let me share my solution below.

First of all, in order to solve the stuck problem when the swiper component slides quickly, lazy loading technology can be used. The so-called lazy loading means loading and rendering only when a certain component is needed, instead of loading all components at the same time from the beginning.

The specific implementation method is: add a loaded status to each item of the swiper. When the item needs to be displayed, set the status to loaded. At the same time, in the initialization settings of the swiper component, set the number of cards to be more than the content that needs to be displayed. This can avoid the possible situation where the first card is displayed before the user has finished loading during the user's rapid swiping process.

Secondly, you can also modify the switching animation effect of swiper, which can also effectively improve rendering performance.

The Uniapp swiper component provides two animation effects: "slide" and "fade". Among them, "slide" is the effect of panning switching, and "fade" is the effect of fading in and out. When sliding quickly, the "slide" effect will be more stuck, so you can try using the "fade" effect.

Finally, if the above two methods cannot completely solve the problem, we can also try to use the better-scroll plug-in to replace the swiper component. The better-scroll plug-in can also realize the function of carousel charts, and has good performance and is suitable for processing large amounts of data.

Summary, through the above methods, we can effectively solve the problem of swiper switching too fast and die, and improve the user experience of the mini program.

The above is the detailed content of What happens if uniapp swiper dies when switching too fast?. For more information, please follow other related articles on the PHP Chinese website!