【Vue】 使用vuex 封裝一個toast 元件

使用vuex進行狀态管理，使用css控制toast的顯示。

type表示toast中的圖示，可以自定義添加多種圖示，例子中隻設定了normal與success，

通過showToast控制toast的css的fadin和fadeout類，通過css的動畫效果實作toast逐漸消失的效果

//toast.components

<template>
  <div class="toast-wrapper" :class="{ 'fadein': showToast,'fadeout': !showToast}">
    <div class="icon" v-if="toastInfo.type!=='normal'" :class="toastInfo.type" >
    </div>
    <div class="message">{{toastInfo.message}}</div>
  </div>
</template>
<script>
import { mapGetters } from 'vuex';
export default {
  name: "Toast",
  data() {
    return {
      message: "",
      type: "normal" // noraml 預設，無圖示； success 有圖示
    };
  },
   computed:{
        ...mapGetters(['showToast','toastInfo'])
    },
};
</script>

<style  scoped>
@Medium: PingFangSC-Medium, "Microsoft YaHei";
@Regular: PingFangSC-Regular, "Microsoft YaHei";
@Primary: #ff7400;
.toast-wrapper {
  position: absolute;
  left: 50%;
  top: 50%;
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  width: 7.07rem;
  height: 5.21rem;
  background: rgba(0, 0, 0, 0.8);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
    &.fadein {
        opacity: 0.8;
        transition: opacity ease-in 0s;
    }
    &.fadeout {
        opacity: 0;
        transition: all ease-out 0.5s;
    }
    .icon{
        display: block;
    }
    .success{
        width: 1.29rem;
        height: 1.29rem;
        margin-bottom: 0.43rem;
        background: url('../assets/success.png');
        background-size: 1.29rem 1.29rem;
    }
    .message{
        font-family: @Regular;
        font-size: 15px;
        text-align: center;
        color: #fff;
    }
}
</style>
           

通過vuex管理toast的toastInfo，即message和time以及type

// index.js 
import mutations from './mutations.js';
import actions from './actions.js';
import getters from './getters.js';
   const state = {
    showToast: false,
    toastInfo: {
        type: 'normal',
        meassage: ''
    }
};
export default {
    state,
    getters,
    actions,
    mutations
};

// getter.js
export default {
    showToast: state => state.showToast,
    toastInfo: state => state.toastInfo
};

// actions.js
export default {
    setToast ({ dispatch, commit }, payload) {
        commit('updateToast', true);
        commit('updateToastInfo', payload);
        setTimeout(() => { dispatch('delToast'); }, payload.time);
    },
    delToast ({ commit }) {
        commit('updateToast', false);
    }
};

// mutations.js
export default {
    updateToast (state, params) {
        state.showToast = params;
    },
    updateToastInfo (state, params) {
        state.toastInfo = { ...params };
    }
};
           

最後在元件裡使用, 注意，因為是通過vuex控制toasShow，然後在toasShow為false的時候，toast還有0.5s的時間逐漸隐藏，是以整體展示的時間是settoast中的time時間加0.5s

import { mapGetters, mapActions } from 'vuex';

 methods: {
    ...mapActions([ 'setToast']),
    someMedthod() {
     this.setToast({time: 1500, message: '成功',type: 'success'});
    }
}