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微信小程序自定義組件實現tabs選項卡功能

發布時間:2020-09-07 14:49:03 來源:腳本之家 閱讀:294 作者:hanxue_tyc 欄目:web開發

本文為大家分享了微信小程序實現tabs選項卡功能的具體代碼,供大家參考,具體內容如下

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 字段設為 true 可這一組文件設為自定義組件)

components/navigator/index.json

{
 "component": true
}

components/navigator/index.wxml

<!-- 自定義tab標簽組件-->
<!-- 標題列表-->
<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>
<!--內容列表-->
<slot>
</slot>

components/navigator/index.js

//組件的對外屬性,是屬性名到屬性設置的映射表,屬性設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函數
Component({
 properties:{
 //標題列表
 tList:{
 type: Array,
 value:[]
 }, 
 //當前tab index
 currentTab:{
 type:Number,
 value:0,
 observer: function (newVal, oldVal) { 
 this.setData({
  currentTab : newVal
 })
 } 
 }
 },
 //組件的方法,包括事件響應函數和任意的自定義方法,關于事件響應函數的使用
 methods:{
 // 內部方法建議以下劃線開頭
 _swichNav:function(e){
 //自定義組件觸發事件時,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簽名和對應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組件一樣使用自定義組件。節點名即自定義組件的標簽名,節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" >
 <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"  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

微信小程序自定義組件實現tabs選項卡功能

項目地址:微信小程序實現tabs選項卡功能

以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支持億速云。

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