Use uniapp to implement multi-language switching function

Use uniapp to implement multi-language switching function

1. Background introduction
With the development of globalization, multi-language applications have become an important aspect in the Internet field. Important features. For developing mobile applications based on the uniapp framework, it is essential to implement multi-language switching functionality. This article will introduce how to use the uniapp framework to implement multi-language switching function and provide specific code examples.

2. Preparation work
Before we start to implement the multi-language switching function, we need to do some preparation work:

1. Create the uniapp project: use the command line tool provided by uniapp or Visual tool to create a uniapp project.

2. Install the plug-in: In the project directory, execute the following command to install the uni-i18n plug-in.

   npm install uni-i18n

3. Configure language files
In the uniapp project, we need to configure language files. Create a folder named locale in the project root directory, and create two language files zh-CN.js and en-US.js## in the folder. #, used in Chinese and English respectively. The content of

1. zh-CN.js is as follows:

   export default {
     hello: '你好',
     welcome: '欢迎使用uniapp'
     // 其他中文文本...
   }

2. en-US.js## The content of # is as follows: <pre class='brush:php;toolbar:false;'>export default { hello: 'Hello', welcome: 'Welcome to uniapp' // 其他英文文本... }</pre>

Fourth, implement the multi-language switching function

Create a file named
1. i18n.js

   File for handling multi-language switching. <pre class='brush:php;toolbar:false;'>import uniI18n from 'uni-i18n' import zhCN from '@/locale/zh-CN.js' import enUS from '@/locale/en-US.js' // 设置默认语言 uniI18n.setDefaultLanguage('zh-CN') // 添加其他语言 uniI18n.addLanguage('zh-CN', zhCN) uniI18n.addLanguage('en-US', enUS) export default uniI18n</pre>

Introduce
2. i18n.js

   in main.js. <pre class='brush:php;toolbar:false;'>import i18n from '@/config/i18n.js'</pre>

Initialize multi-language switching in the
3. onLaunch

   life cycle of the App instance. <pre class='brush:php;toolbar:false;'>onLaunch: function() { i18n.init() }</pre>

In components that need to use multiple languages, use the
4. $t

   method to obtain the corresponding multilingual text. <pre class='brush:php;toolbar:false;'>// 在template中 {{ $t('hello') }} // 在script中 this.$t('hello')</pre>

6. Switching languages

Through the above steps, we have implemented the multi-language switching function. Here's how to switch languages.

Add a button to switch languages ​​in
1. App.vue

   . <pre class='brush:php;toolbar:false;'>&lt;button @click=&quot;changeLanguage&quot;&gt;切换语言&lt;/button&gt;</pre>

Add the
2. changeLanguage

   method in methods. <pre class='brush:php;toolbar:false;'>methods: { changeLanguage() { i18n.setLanguage('en-US') } }</pre>

   setLanguage

   method is used to switch languages.

7. Summary

Through the above steps, we have successfully implemented the function of using the uniapp framework to achieve multi-language switching. By configuring language files and calling the corresponding API, we can easily implement multi-language switching and provide users with a better experience. I hope this article can be helpful to your uniapp development work.

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