Vue自定义toast组件的实例代码

<template>
 <div v-show="showToast" class="toast" :class="position">
 <div class="toast_container" v-if="type=='success'">
  <div><i class="iconfont icon-check icon"></i></div>
  <div class="msg_container">{{message}}</div>
 </div>
 <div class="toast_container" v-else-if="type=='wrong'">
  <div><i class="iconfont icon-warning-circle icon"></i></div>
  <div class="msg_container">{{message}}</div>
 </div>
 <div class="toast_container" v-else-if="type=='loading'">
  <div><loading10></loading10></div>
  <div class="msg_container">{{message}}</div>
 </div>
</div>
</template>
<script>
import loading10 from '../loading/spiner'
export default{
 props:{
  message:String,
  type:{
   validator: function (value) {
   // 值必须是这些字符串中的一个
   return ['success', 'wrong', 'loading'].indexOf(value) !== -1
  },
   default:'success'
  },
  duration:{
   type:Number,
   default:3000
  },
   position:{
   type:String,
   default:'middle'
  }
 },
 components:{
  loading10
 },
 data(){
  return{
   showToast:false
  }
 }
}
</script>
<style scoped>
.toast{
 width:100%;
}
.toast_container{
 background: rgba(0, 0, 0, 0.7);
 border-radius: 8px;
 color:#fff;
 margin-left:88px;
 margin-right:88px;
 text-align:center;
 padding-top:15px;
 padding-bottom: 15px; 
}
.top{
 position:absolute;
 top:10%;
}
.middle{
 position:absolute;
 top:40%;
}
.bottom{
 position:absolute;
 top:70%;
}
.msg_container{
 margin-top:8px;
 margin-left:15px;
 margin-right:15px;
 line-height: 22px;
 font-size: 16px;
 word-wrap: break-word;
}
.icon{
 font-size:30px;
}
</style>

import Vue from 'vue'
import Toast from './toast'
let singleToast=true;
let queue=[];
function createInstance(){
 // 返回一个扩展实例构造器
 if(!queue.length||!singleToast){
 const ToastConstructor = Vue.extend(Toast);
 // 构造一个实例
 const toastDom = new ToastConstructor({
 el: document.createElement('div'),
 });
 // 把实例化的 toast.vue 添加到 body 里
 document.body.appendChild(toastDom.$el);
 queue.push(toastDom);
 singleToast=true;
 return toastDom;
 }
};
// 注册为全局组件的函数
function toast(options= {}) {
 const toastDom = createInstance();
 toastDom.message =typeof options === 'string' ? options : options.message;
 toastDom.type = options.type || 'success';
 toastDom.duration = options.duration || 3000;
 toastDom.position = options.position || 'middle';
 if(!toastDom.message){
 toastDom.showToast =singleToast= false;
 }else{
 toastDom.showToast=true;
 setTimeout(() => {toastDom.showToast =singleToast= false} ,toastDom.duration);
 }
}
// 将组件注册到 vue 的 原型链里去,
// 这样就可以在所有 vue 的实例里面使用 this.$toast()
// Vue.prototype.$toast = showToast
Vue.prototype.$toast = toast;
export default toast

import toast from './components/toast/index'
Vue.use(toast)

<template>
 <div>
  <input type="button" value="显示弹窗" @click="showToast">
 </div>
</template>
 <script>
 export default {
  methods: {
   showToast () {
    this.$toast({message:'加载中',type:'loading',position:'bottom',
     duration:'2000'});
    // this.$toast('成功提示');
   }
  }
 }
 </script>