微信小程序自定義組件實現(xiàn)tabs選項卡功能

更新時間：2018年07月14日 10:17:35 作者：hanxue_tyc

這篇文章主要為大家詳細(xì)介紹了微信小程序自定義組件實現(xiàn)tabs選項卡功能，具有一定的參考價值，感興趣的小伙伴們可以參考一下

本文為大家分享了微信小程序?qū)崿F(xiàn)tabs選項卡功能的具體代碼，供大家參考，具體內(nèi)容如下

一個自定義組件由 json wxml wxss js 4個文件組成。要編寫一個自定義組件，首先需要在 json 文件中進行自定義組件聲明（將 component 字段設(shè)為 true 可這一組文件設(shè)為自定義組件）

components/navigator/index.json

{
 "component": true
}

components/navigator/index.wxml

<!-- 自定義tab標(biāo)簽組件-->
<!-- 標(biāo)題列表-->
<scroll-view scroll-x="true" class="scroll-view-x" wx:if="{{!ttype || ttype==2}}">
 <view class="scroll-view-item" wx:for="{{tList}}" wx:key="*this">
 <view class="{{currentTab==(index) ? 'on' : ''}}" bindtap="_swichNav" data-current="{{index}}">{{ !tname ? item.name : item[tname].name }}</view>
 </view>
</scroll-view>
<!--內(nèi)容列表-->
<slot>
</slot>

components/navigator/index.js

//組件的對外屬性，是屬性名到屬性設(shè)置的映射表，屬性設(shè)置中可包含三個字段， type 表示屬性類型、 value 表示屬性初始值、 observer 表示屬性值被更改時的響應(yīng)函數(shù)
Component({
 properties:{
 //標(biāo)題列表
 tList:{
 type: Array,
 value:[]
 }, 
 //當(dāng)前tab index
 currentTab:{
 type:Number,
 value:0,
 observer: function (newVal, oldVal) { 
 this.setData({
  currentTab : newVal
 })
 } 
 }
 },
 //組件的方法，包括事件響應(yīng)函數(shù)和任意的自定義方法，關(guān)于事件響應(yīng)函數(shù)的使用
 methods:{
 // 內(nèi)部方法建議以下劃線開頭
 _swichNav:function(e){
 //自定義組件觸發(fā)事件時，需要使用 triggerEvent 方法，指定事件名、detail對象和事件選項
 this.triggerEvent('changeCurrent', {
 currentNum: e.currentTarget.dataset.current
 })
 }
 }
})

components/navigator/index.wxss

.scroll-view-x{
 background-color: #fff;
 white-space: nowrap;
 position:fixed;
 z-index:10;
 top:0
}
.scroll-view-x .scroll-view-item{
 display:inline-block;
 margin:0 35rpx;
 line-height: 33px;
 cursor: pointer;
}
.on{
 border-bottom: 2px solid red;
 color: red
}

使用自定義組件

使用已注冊的自定義組件前，首先要在頁面的 json 文件中進行引用聲明。此時需要提供每個自定義組件的標(biāo)簽名和對應(yīng)的自定義組件文件路徑：

pages/order-list/index.json

{
 "navigationBarTitleText":"訂單列表",
 "usingComponents": {
 "slideTab": "../../components/navigator/index"
 }
}

這樣，在頁面的 wxml 中就可以像使用基礎(chǔ)組件一樣使用自定義組件。節(jié)點名即自定義組件的標(biāo)簽名，節(jié)點屬性即傳遞給組件的屬性值。

pages/order-list/index.wxml

<view >
 <slideTab tList="{{statusType}}" bind:changeCurrent="swichNav" currentTab="{{currentType}}" >
 <swiper current="{{currentType}}" duration="300" bindchange="bindChange" style="height: {{windowHeight-35}}px;margin-top:35px;">
 <block>
  <swiper-item wx:for="{{list}}">
  <view class="no-order" hidden="{{item.length ? true : false}}">
  <image src="../../assets/imgs/no-order.png" class="no-order-img"></image>
  <view class="text">暫無訂單</view>
  </view>
  <scroll-view scroll-y="true" class="order-list" scroll-with-animation="true" lower-threshold="1" bindscrolltolower="scrolltolower" style="height: {{windowHeight-35}}px;" hidden="{{item ? flase : true}}">
  <view class="a-order" wx:for="{{item}}" wx:key="childIndex" wx:for-item="childItem" >
  <view class="order-date">
   <view class="date-box">下單時間：{{childItem.dateAdd}}</view>
   <view class="status {{(childItem.status==-1 || childItem.status==4) ? '':'red'}}">{{item.statusStr}}</view>
  </view>
  <view class="goods-info" bindtap="orderDetail" data-id="{{childItem.id}}">
   <view class="goods-des">
   <view>訂單號 : {{childItem.orderNumber}} </view>
   <view wx:if="{{childItem.remark && childItem.remark != ''}}">備注： {{item.remark}}</view>
   </view>
  </view>
  <view >
   <scroll-view class="goods-img-container" scroll-x="true">
   <view class="img-box" wx:for="{{goodsMap[currentType][childItem.id]}}" wx:for-item="child_item">
    <image src="{{child_item.pic}}" class="goods-img"></image>
   </view>
   </scroll-view>
  </view>
  <view class="price-box">
   <view class="total-price">合計：¥ {{childItem.amountReal}}</view>
   <view class="btn cancel-btn" hidden="{{childItem.status==0? false : true}}" bindtap="cancelOrderTap" data-id="{{childItem.id}}">取消訂單</view>
   <view class="btn topay-btn" hidden="{{childItem.status==0? fslse : true}}" bindtap="toPayTap" data-id="{{childItem.id}}" data-money="{{childItem.amountReal}}">馬上付款</view> 
  </view> 
  </view>
  </scroll-view>
  </swiper-item>
 </block>
 </swiper>
 </slideTab>
</view>

pages/order-list/index.js

var wxpay = require('../../utils/pay.js')
var app = getApp();
Page({
 data:{
 statusType:[
 {name:"待付款",page:0},
 {name:"待發(fā)貨",page:0},
 {name:"待收貨",page:0},
 {name:"待評價",page:0},
 {name:"已完成",page:0}],
 currentType:0,
 list:[[],[],[],[],[]],
 goodsMap:[{},{},{},{},{}],
 logisticsMap:[{},{},{},{},{}],
 windowHeight:''
 },
 onLoad(options){
 this.getList();
 var systemInfo = wx.getSystemInfoSync()
 this.setData({
 windowHeight: systemInfo.windowHeight,
 currentType:options.id ? options.id:0
 })
 },
 // 點擊tab切換 
 swichNav: function (res) {
 if (this.data.currentType == res.detail.currentNum) return;
 this.setData({
 currentType: res.detail.currentNum
 })
 } , 
 bindChange:function(e){
 this.setData({
 currentType: e.detail.current
 })
 if (!this.data.list[e.detail.current].length)
 this.getList();
 } ,
 getList(){
 wx.showLoading();
 var that = this;
 var postData = {
 token: app.globalData.token,
 status: that.data.currentType
 };
 var _page = that.data.statusType[that.data.currentType].page+1 ;;
 wx.request({
 url: app.globalData.baseUrl + '/order/list',
 data: postData,
 success: (res) => {
 wx.hideLoading();
 var param = {}, str1 = "list[" + that.data.currentType + "]", str2 = 'statusType[' + that.data.currentType + '].page', str3 = "logisticsMap[" + that.data.currentType + "]", str4 = "goodsMap[" + that.data.currentType + "]" ;
 if (res.data.code == 0) {
  param[str1] = res.data.data.orderList ;
  param[str2] = _page ;
  param[str3] = res.data.data.logisticsMap ;
  param[str4] = res.data.data.goodsMap ;
  that.setData(param);
 } else {
  param[str1] = [];
  param[str3]= {};
  param[str4] = {};
  this.setData(param);
 }
 }
 })
 },
 orderDetail: function (e) {
 var orderId = e.currentTarget.dataset.id;
 wx.navigateTo({
 url: "/pages/order-details/index?id=" + orderId
 })
 },
 cancelOrderTap: function (e) {
 var that = this;
 var orderId = e.currentTarget.dataset.id;
 wx.showModal({
 title: '確定要取消該訂單嗎？',
 content: '',
 success: function (res) {
 if (res.confirm) {
  wx.showLoading();
  wx.request({
  url: app.globalData.baseUrl + '/order/close',
  data: {
  token: app.globalData.token,
  orderId: orderId
  },
  success: (res) => {
  wx.hideLoading();
  if (res.data.code == 0) {
  var param = {}, str = 'statusType[' + that.data.currentType + '].page';
  param[str]=0;
  that.getList();
  }
  }
  })
 }
 }
 })
 }
})

pages/order-list/index.wxss

.container{
 width: 100%;
 background-color: #F2f2f2;
}
.status-box{
 width:100%;
 height: 88rpx;
 line-height: 88rpx;
 display: flex;
 justify-content: space-between;
 align-items: center;
 background-color: #fff;
}
.status-box .status-label{
 width: 150rpx;
 height: 100%;
 text-align: center;
 font-size:28rpx;
 color:#353535;
 box-sizing: border-box;
 position: relative;
}
.status-box .status-label.active{
 color:#e64340;
 border-bottom: 6rpx solid #e64340;
}
.status-box .status-label .red-dot{
 width: 16rpx;
 height: 16rpx;
 position: absolute;
 left: 116rpx;
 top:23rpx;
 background-color: #f43530;
 border-radius: 50%;
}
.no-order{
 width: 100%;
 position: absolute;
 bottom: 0;
 top:0;
 left: 0;
 right: 0;
 text-align: center;
 padding-top: 203rpx;
 background-color: #F2f2f2;
}
.no-order-img{
 width: 81rpx;
 height: 96rpx;
 margin-bottom: 31rpx;
}
.no-order .text{
 font-size:28rpx;
 color:#999999;
 text-align: center
}
.order-list{
 width: 100%;
}
.order-list .a-order{
 width: 100%;
 background-color: #fff;
 margin-top: 20rpx;
}
.order-list .a-order .order-date{
 padding: 0 30rpx;
 height: 88rpx;
 display: flex;
 justify-content: space-between;
 font-size:26rpx;
 color:#000000;
 align-items: center;
}
.order-list .a-order .order-date .red{
 font-size:26rpx;
 color:#e64340;
}
.a-order .goods-info,
.goods-img-container{
 width: 720rpx;
 margin-left: 30rpx;
 border-top: 1rpx solid #eee;
 border-bottom: 1rpx solid #eee;
 padding: 30rpx 0;
 display: flex;
 align-items: center;
}
.goods-info .img-box{
 width: 120rpx;
 height: 120rpx;
 overflow: hidden;
 margin-right: 30rpx;
 background-color: #f7f7f7;
}
.goods-info .img-box .goods-img,
.goods-img-container .img-box .goods-img{
 width: 120rpx;
 height: 120rpx;
}
.goods-info .goods-des{
 width: 540rpx;
 height: 78rpx;
 line-height: 39rpx;
 font-size:26rpx;
 color:#000000;
 overflow: hidden;
}
.goods-img-container{
 height: 180rpx;
 box-sizing: border-box;
 white-space: nowrap;
}
.goods-img-container .img-box{
 width: 120rpx;
 height: 120rpx;
 overflow: hidden;
 margin-right: 20rpx;
 background-color: #f7f7f7;
 display: inline-block;
}
.order-list .a-order .price-box{
 position: relative;
 width: 720rpx;
 height: 100rpx;
 margin-left: 30rpx;
 box-sizing: border-box;
 padding: 20rpx 30rpx 20rpx 0;
 display: flex;
 align-items: center;
 justify-content: space-between;
 font-size:26rpx;
}
.order-list .a-order .price-box .total-price{
 font-size:26rpx;
 color:#e64340;
}
.a-order .price-box .btn{
 width: 166rpx;
 height: 60rpx;
 box-sizing: border-box;
 text-align: center;
 line-height: 60rpx;
 border-radius: 6rpx;
 margin-left: 20rpx;
}
.a-order .price-box .cancel-btn{
 border: 1rpx solid #ccc;
 position: absolute;
 right: 216rpx;
 top:20rpx;
}
.a-order .price-box .topay-btn{
 border:1px solid #e64340;
 color: #e64340;
}

效果圖

這里寫圖片描述