With the rapid development of mobile Internet, mobile applications have become an indispensable part of life. At the same time, cross-platform development is getting more and more attention because it can improve the efficiency of applications and reduce development costs. Uniapp is a cross-platform development framework based on Vue.js and can run on multiple platforms such as WeChat mini-programs, Alipay mini-programs, H5, etc. For developers, this means they can use the same code base to build applications for multiple platforms without having to develop different code bases.
This article will next introduce how to convert Uniapp into a small program and provide some useful tips and experiences.
Before converting Uniapp to Mini Program, we need to first understand the differences and characteristics of Uniapp and Mini Program.
Uniapp is an open source framework for building cross-platform applications. It can generate applications for multiple platforms, including applets, H5, mobile applications, etc. Uniapp is built on the Vue.js framework and has all the features of Vue.js. Uniapp provides a componentized programming framework that allows developers to easily create a single code base and run it on multiple platforms.
The WeChat applet is a lightweight application that can be used within the WeChat App. Mini programs are developed based on the WeChat ecosystem, so they have direct access to the API and SDK provided by WeChat. The main goal of mini programs is to provide users with lightweight and fast applications, usually with only one basic function.
Before converting Uniapp into a mini program, you need to check whether the Uniapp source code complies with the mini program specifications. Uniapp uses some components or APIs that are not supported by the applet, such as viewBox, image ignore, etc. In addition, Uniapp also has some specific components and APIs for small programs. Therefore, you need to make some adjustments to ensure that Uniapp can run on the mini program platform.
During the conversion process, you also need to understand which components and APIs can be used directly in the mini program and which ones need to be modified to better meet the standards and needs of the mini program. The following are some useful tips and experiences:
The components and APIs supported by the mini program platform can be found in @uni/xxx. The corresponding components and APIs are API, for example, view-box in uni-app corresponds to the applet compatible component mp-view-box. Therefore, when converting Uniapp, you can directly use these compatible components and APIs to replace components and APIs in Uniapp that are not supported or standard by mini programs.
Some style properties differ between Uniapp and applet. In Uniapp, you can use CSS variables to quickly change styles. However, in the mini program, you need to edit the styles of the components to ensure that they display correctly in the WeChat App. For some style issues, you can refer to the style guide in the mini program documentation.
The event binding between Uniapp and mini program is also different. In Uniapp, you can use Vue.js's event system to bind events. However, in the applet, you need to use prefixes such as bind: or catch: to bind events. In addition, mini programs do not support bubbling events.
Data binding is also different between Uniapp and applet. In Uniapp, you can bind data using Vue.js's two-way binding. However, in the applet, you need to use WXML language to bind data. In addition, the applet also needs to use specific attributes to bind data, such as bindinput and value.
In Uniapp, you can use Vue.js’ routing system to control the navigation of your application. However, in a mini program, you need to use the navigation API provided by the mini program to navigate the page. You need to convert the routing objects in the Vue.js routing system to the navigation API in the applet, such as wx.navigateTo and wx.switchTab, etc.
Converting Uniapp into a small program can bring a lot of convenience and efficiency to application development. However, before making the conversion, you need to have a certain understanding of Uniapp and applet and make the necessary adjustments and modifications. This article provides some useful tips and experiences, hoping to help you convert Uniapp into an applet more easily.
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