What to do if uniApp images are slow to load

uniApp is a cross-platform development framework through which we can quickly develop multi-terminal applications. However, many uniApp developers will encounter a problem during the development process: slow loading of images. In this article, we will share how to solve this problem.

1. Cause Analysis

There are many reasons why images load slowly. Here are some of them:

1. The image size is too large. Images that are too large will cause long loading times, so when using images, you should try to choose images of a moderate size.

2. Network problems. If the network is not good, the image loading speed will become very slow or even impossible to load.

3. The server response time is slow. If the server response time is too long, it will also be slow to load images.

4. Cache problem. If the image has been cached, it may load much faster again.

2. Solution

1. Use WebP format images

WebP is a new image format developed by Google. Through this format, image size can be compressed and speed up. Loading speed. Using WebP format images in uniApp can significantly improve the loading speed of images.

2. Compress images

When uploading images, you can use compression tools to compress the images to a suitable size, which can reduce the size and loading time of the image.

3. Use the appropriate image format

When using images, you should choose the appropriate image format. For some simple icons and vector graphics, you can use SVG or font icons instead of pictures. For complex images, jpg or PNG formats can be used.

4. Optimize server response time

If the server response time is slow, you can try to use technologies such as CDN to speed up image loading. Images can also be stored on a server closer to the user for faster access.

5. Use lazy load technology

Lazy load technology is a lazy loading technology for images. It can load images only when the user slides the page, which can reduce unnecessary network requests and improve Page loading speed.

6. Use picture merging technology

When using multiple small pictures on the page, you can use picture merging technology to merge multiple small pictures into one large picture, which can reduce unnecessary network requests, thereby increasing page loading speed.

3. Summary

Slow image loading is a problem often encountered during the development of uniApp. Through the solutions introduced in this article, we can effectively solve this problem and improve the user experience of the application. Of course, in addition to the above solutions, there are many other optimization methods that can be used, and you need to choose according to the specific situation.

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