自定义插件,封装Toast组件(Vue)

深碍√TFBOYSˉ_ 2021-07-24 22:41 656阅读 0赞

使用方法
    
    	在main.js通过Vue.use安装后,在其他组件内部,this.$toast.show(弹出内容,消失事件毫秒)使用

代码实例:  
main.js

// The Vue build version to load with the `import` command
    // (runtime-only or standalone) has been set in webpack.base.conf with an alias.
    import Vue from 'vue'
    import App from './App'
    import router from './router'
    import store from './store'
    import Toast from '@/components/common/toast/toast.vue'
    
    Vue.config.productionTip = false
    
    let plugins={ 
      install(Vue)
      { 
        //创建组件构造器
        let Profile=Vue.extend(Toast);
    
        //创建组件对象,具有了$el获取组件内部dom
        let toast=new Profile()
        console.log(toast);
        //将组件对象挂载到任意元素,不能是文档流已有元素,因为会替换
        toast.$mount(document.createElement('div'));
        
        //会替换挂载的元素,所以$el为当前组件dom
        document.body.appendChild(toast.$el)
    
        Vue.prototype.$toast=toast;
      }
    }
    
    Vue.use(plugins);
    
    /* eslint-disable no-new */
    new Vue({ 
      el: '#app',
      router,
      components: {  App },
      template: '<App/>',
      store
    })

Toast组件:

<template>
       <div class='toast' v-show='hidde'>
         <div class='toast-cont'>
             { { text}}
         </div>
       </div>
    </template>
    
    <script>
    
    
    export default {  
      name:'toast',
      data(){ 
        return{ 
          hidde:false,
          text:'',
          time:1000
        }
      },
      methods:{ 
          show(text,time)
          { 
            this.hidde=true;
            this.text=text;
            this.time=time;
            
            setTimeout(()=>{ 
              this.hidde=false
            },this.time)
    
          }
      }
    
    }
    </script>
    
    <style scoped>
    .toast{ 
        position: absolute;
        z-index: 999;
        text-align: center;
        height: 40px;
        background-color: #3D3F41;
        width:150px;
        top:50%;
        left:50%;
        transform: translate(-50%,-50%);
        border-radius:10px
    
    }
    .toast-cont{ 
        line-height: 40px;
        color:white;
    }
    
    </style>

使用:

this.$toast.show('加入购物车成功',2000);