How to convert webapp to uniapp

With the popularity of mobile Internet, mobile applications have become the first choice for more and more enterprises and developers. Traditional Native applications require cumbersome development processes, which not only wastes time but also increases costs. With the promotion of WepApp, we have a simpler way to develop mobile applications. However, WebApp has certain bottlenecks in terms of stability, performance, and native communication. Therefore, we need a better cross-platform framework to meet the changing user needs. And UniApp is exactly the best choice.

1. What is UniApp
UniApp is a front-end framework that uses Vue.js to develop cross-platform applications. It can support multiple platforms at the same time, such as WeChat applet, Alipay applet, H5, App and other platforms. It can easily and quickly develop high-performance, scalable, and efficient applications, so that we do not need to repeatedly write similar code, nor do we need to use multiple programming languages ​​​​to write multiple applications. Not only that, it also provides a rich component library and API calling interface, so developers can easily customize operations according to their own needs. Compared with traditional WebApp development methods, UniApp has very obvious advantages.

2. Why choose UniApp

1. Simple conversion: Uniapp can directly convert H5 projects into various small programs and apps. You only need to install the Uniapp scaffolding and perform corresponding conversion operations to make your WebApp directly applicable to various platforms, greatly saving development costs.
2. Excellent experience: UniApp adopts a highly encapsulated API calling method, which makes the mini program have a consistent experience when running on multiple platforms, and the performance is very good. Not only can you achieve smooth switching between different applications, but you can also quickly start between host applications. This kind of experience is excellent and can undoubtedly bring a better user experience to users.
3. Rich functions: UniApp has a large number of built-in key components. Developers can directly use these components to quickly implement the desired functions without the need to develop themselves. At the same time, UniApp can also integrate third-party plug-ins and basic libraries to meet more complex development needs.
4. Strong community: UniApp has a huge community from which developers can gain rich experience and resources. These experiences and resources will be of great help to the development process, greatly improving development efficiency and quality.
5. Code reuse: UniApp is based on the development method of Vue.js, and its writing method is almost the same as that of the Web side, which makes it easy for original front-end developers to start using UniApp to develop mobile programs. At the same time, the code used by UniApp can also be reused on the Web side for redevelopment and improvement, which greatly improves the code reuse efficiency.

3. How to convert WebApp to UniApp

There are two conversion methods: 1. Native conversion, 2. Manual conversion. Native conversion is suitable for novices, while manual conversion is suitable for people who are familiar with Vue or have a clear degree of control over business code.

Native conversion

Use HBuilderX to create a new project and select "Share html5Plus static resource packaging" to automatically generate the UniApp project of the H5 project, and then perform online conversion.

Manual conversion

1. Copy all HTML pages and related JavaScript files in the WebApp code to the pages file of UniApp.
2. Copy the CSS files and image resources of WebApp to the static folder of UniApp.
3. Create new App.vue and main.js files, and copy the component structure in WebApp to the App.vue file.
4. Use the API provided by UniApp to rewrite the business logic. You can refer to the sample code provided by UniApp.

It should be noted that since the APIs corresponding to WebApp and mini-programs are different, the original code needs to be modified and adapted accordingly during conversion.

4. Summary

With the popularity of mobile applications, the importance of mobile development has become more and more obvious. The cross-platform solution of “once development, multi-terminal operation” has become an industry standard. UniApp is one of the most advantageous solutions in this field. It can simplify the development process and improve development efficiency and quality. We can use UniApp's advantages to develop better mobile applications more efficiently.

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