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How to use multi-language switching technology to achieve multi-language support in uniapp
Introduction:
In mobile applications, in order to meet the language needs of different users, implement Multi-language support is a very common requirement. By using the multi-language switching technology provided by uniapp, we can easily implement multi-language support for the application. This article will introduce how to use multi-language switching technology to achieve multi-language support in uniapp, and provide specific code examples.
1. Preparation work:
Before starting, we need to ensure that the uniapp development environment has been installed and a uniapp project has been created. In addition, you also need to prepare text resource files for the multiple languages that the application needs to support, as well as the corresponding language identifiers. Common language identifiers include zh-CN (Simplified Chinese), en-US (English), ja-JP (Japanese), etc.
2. Create multi-language resource files:
In the root directory of the uniapp project, create a folder named lang, and create multiple json files corresponding to different languages in it. For example, we can create a zh-CN.json file with the following content:
{ "hello": "你好", "welcome": "欢迎使用uniapp" }
Similarly, we can create corresponding json files for English and Japanese with similar content.
3. Write multi-language switching code:
// lang.js export default { // 根据语言标识获取对应的json文件 getLanguageResource(language) { let resource = null; try { resource = require(`@/lang/${language}.json`); } catch (e) { resource = require('@/lang/zh-CN.json'); } return resource; }, // 根据语言标识获取对应的文本 getText(language, key) { let resource = this.getLanguageResource(language); return resource[key] || ''; } }
<template> <view> <view class="lang-switch"> <text class="lang-item" v-for="item in languages" :key="item.value" @click="onLangClick(item.value)"> {{ item.label }} </text> </view> </view> </template> <script> import lang from '@/lang.js'; export default { data() { return { languages: [ { label: '简体中文', value: 'zh-CN' }, { label: 'English', value: 'en-US' }, { label: '日本語', value: 'ja-JP' } ] }; }, methods: { onLangClick(language) { this.$emit('langChange', language); } } } </script> <style> .lang-switch { display: flex; } .lang-item { margin-right: 10px; cursor: pointer; } </style>
4. Use the multi-language switching function in the application:
<template> <view> <lang-switch @langChange="onLangChange"></lang-switch> <view>{{ helloText }}</view> <view>{{ welcomeText }}</view> </view> </template> <script> import lang from '@/lang.js'; export default { data() { return { helloText: '', welcomeText: '' }; }, methods: { onLangChange(language) { this.helloText = lang.getText(language, 'hello'); this.welcomeText = lang.getText(language, 'welcome'); } }, mounted() { // 默认加载简体中文文本 this.onLangChange('zh-CN'); } } </script>
Summary:
Through the above steps, we have learned how to use multi-language switching technology in uniapp to achieve multi-language support for applications. By creating multiple json files corresponding to different languages and writing the corresponding switching code in uniapp, we finally achieved the function of applying multi-language switching. I hope this article will help you implement multi-language support in uniapp.
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