With the popularity of mobile Internet, more and more websites and applications need to consider the mobile experience. As a popular front-end framework, Vue has responsive layout and adaptive capabilities, which can well help us build adaptive mobile interfaces. This article will introduce how to use Vue to build an adaptive mobile interface.

1. Use rem instead of px as the unit

Using px as the unit in the mobile interface may lead to inconsistent display effects on different devices. Therefore, it is recommended to use rem instead of px as the unit. rem is a unit of font size relative to the root element and can be automatically resized based on screen size.

First, set the font size in the html tag to 1/10 of the screen width, for example:

html{
    font-size: calc(100vw / 10);
}

In this way, for a device with a screen width of 375px, the font size will be set to 37.5px . In subsequent styles, you can use rem as the unit, for example:

.container{
    width: 7.5rem; // 相當(dāng)于屏幕寬度的75%
    font-size: 0.14rem; // 相當(dāng)于14px
}

2. Use Flexbox layout

Flexbox layout is a flexible layout method that can be easily implemented Adaptive effects. In a Vue project, you can use Vue's built-in components v-layout and v-flex to use Flexbox layout.

First, install Vuetify in the project, which can be installed through the npm command:

npm install vuetify --save

Then, introduce and use Vuetify in main.js:

import Vue from 'vue'
import Vuetify from 'vuetify'
import 'vuetify/dist/vuetify.min.css'
Vue.use(Vuetify)

Finally, in Vue The v-layout and v-flex components are used in the component to implement Flexbox layout. For example:

<template>
  <v-layout row wrap>
    <v-flex xs12 sm6 md4 lg3>Item 1</v-flex>
    <v-flex xs12 sm6 md4 lg3>Item 2</v-flex>
    <<v-flex xs12 sm6 md4 lg3>Item 3</v-flex>
    <v-flex xs12 sm6 md4 lg3>Item 4</v-flex>
  </v-layout>
</template>

<script>
export default {
  name: 'MyComponent',
  components: {
    VLayout,
    VFlex
  }
}
</script>

The above code indicates that four Items of different sizes are displayed under different screen sizes.

3. Using Vue’s transition effects

In mobile interfaces, transition effects can greatly improve the user experience. Vue provides built-in components v-transition and v-animation for transition effects, which can also be used in adaptive mobile interfaces.

First, install the animate.css library in the project, which can be installed through the npm command:

npm install animate.css --save

Then, use v-transition in the Vue component to achieve the transition effect. For example:

<template>
  <div>
    <transition :name="transitionName">
      <div v-if="show" class="animated" ref="box"></div>
    </transition>
    <button @click="toggle">Toggle</button>
  </div>
</template>

<script>
export default {
  name: 'MyComponent',
  data() {
    return {
      show: false,
      transitionName: 'fade'
    }
  },
  methods: {
    toggle() {
      this.show = !this.show
    }
  }
}
</script>

<style>
.animated {
  animation-duration: 1s;
}

.fade-enter-active, .fade-leave-active {
  transition: opacity 1s;
}
.fade-enter, .fade-leave-to {
  opacity: 0;
}
</style>

The above code indicates that when the Toggle button is clicked, there will be a fade-in and fade-out transition effect.

4. Use vue-router to implement page jump

In the mobile interface, page jumps also need to pay attention to the adaptive effect. Vue provides vue-router to implement page jumps and nested routing.

First, install vue-router in the project, which can be installed through the npm command:

npm install vue-router --save

Then, define routing and use vue-router in main.js:

import Vue from 'vue'
import VueRouter from 'vue-router'
import Home from './views/Home.vue'
Vue.use(VueRouter)
const router = new VueRouter({
  routes: [
    {
      path: '/',
      name: 'home',
      component: Home
    },
    {
      path: '/about',
      name: 'about',
      component: () => import(/* webpackChunkName: "about" */ './views/About.vue')
    }
  ]
})
new Vue({
  router
}).$mount('#app')

Finally, use the router-link component in the Vue component to implement the jump. For example:

<template>
  <div>
    <router-link to="/">Home</router-link>
    <router-link to="/about">About</router-link>
  </div>
</template>

The above code indicates that router-link is used in the page to jump to the Home and About pages.

Summary

This article introduces how to use Vue to build an adaptive mobile interface. Specifically, it includes using rem instead of px as the unit, using Flexbox layout, using Vue's transition effect, and using vue-router to implement page jumps. These technologies can help us build a good mobile interface and make the user experience smoother and more friendly.

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