前言:今天呢 給你們詳細講解一下滾動Tab選項卡:左右可滑動切換的效果,但願對你們作項目時候有用!css
之前也遇到過這個,可是沒有作記錄。轉載來源於:https://www.jianshu.com/p/94849f9c2ff2vue
1、wxml結構jquery
tab標題因一排八個,因此使用 scroll-view組件,使其可橫向滾動。
tab內容可左右滑動切換,使用swiper組件實現
爲了偷懶,因此數據都經過wx:for遍歷重複出來。
說明:小程序
一、設置data-current屬性用於:點擊當前項時,經過點擊事件swichNav中處理 e.dataset.current取到點擊的目標值。 二、swiper組件的current組件用於控制當前顯示哪一頁 三、swiper組件綁定change事件switchTab,經過e.detail.current拿到當前頁
<view > <scroll-view scroll-x="true" class="tab-h" scroll-left="{{scrollLeft}}"> <view class="tab-item {{currentTab==0?'active':''}}" data-current="0" bindtap="swichNav">健康</view> <view class="tab-item {{currentTab==1?'active':''}}" data-current="1" bindtap="swichNav">情感</view> <view class="tab-item {{currentTab==2?'active':''}}" data-current="2" bindtap="swichNav">職場</view> <view class="tab-item {{currentTab==3?'active':''}}" data-current="3" bindtap="swichNav">育兒</view> <view class="tab-item {{currentTab==4?'active':''}}" data-current="4" bindtap="swichNav">糾紛</view> <view class="tab-item {{currentTab==5?'active':''}}" data-current="5" bindtap="swichNav">青蔥</view> <view class="tab-item {{currentTab==6?'active':''}}" data-current="6" bindtap="swichNav">所有</view> <view class="tab-item {{currentTab==7?'active':''}}" data-current="7" bindtap="swichNav">其餘</view> </scroll-view> <swiper class="tab-content" current="{{currentTab}}" duration="300" bindchange="switchTab" style="height:{{winHeight}}rpx"> <swiper-item wx:for="{{[0,1,2,3,4,5,6,7]}}"> <scroll-view scroll-y="true" class="scoll-h" > <block wx:for="{{[1,2,3,4,5,6,7,8]}}" wx:key="*this"> <view class="item-ans"> <view class="avatar"> <image class="img" src="http://ookzqad11.bkt.clouddn.com/avatar.png"></image> </view> <view class="expertInfo"> <view class="name">歡顏</view> <view class="tag">知名情感博主</view> <view class="answerHistory">134個回答,2234人聽過 </view> </view> <navigator url="/pages/askExpert/expertDetail" class="askBtn">問TA</navigator> </view> </block> </scroll-view> </swiper-item> </swiper> </view>
2、js部分微信小程序
微信小程序在開發起來,我的感受挺像vue的,以數據驅動視圖的更新。 因此在小程序中,不能直接操做dom,固然也不能使用jquery之類的庫。
var app = getApp(); Page({ data:{ winHeight:"",//窗口高度 currentTab:0, //預設當前項的值 scrollLeft:0, //tab標題的滾動條位置 expertList:[{ //假數據 img:"avatar.png", name:"歡顔", tag:"知名情感博主", answer:134, listen:2234 }] }, // 滾動切換標籤樣式 switchTab:function(e){ this.setData({ currentTab:e.detail.current }); this.checkCor(); }, // 點擊標題切換當前頁時改變樣式 swichNav:function(e){ var cur=e.target.dataset.current; if(this.data.currentTaB==cur){return false;} else{ this.setData({ currentTab:cur }) } }, //判斷當前滾動超過一屏時,設置tab標題滾動條。 checkCor:function(){ if (this.data.currentTab>4){ this.setData({ scrollLeft:300 }) }else{ this.setData({ scrollLeft:0 }) } }, onLoad: function() { var that = this; // 高度自適應 wx.getSystemInfo( { success: function( res ) { var clientHeight=res.windowHeight, clientWidth=res.windowWidth, rpxR=750/clientWidth; var calc=clientHeight*rpxR-180; console.log(calc) that.setData( { winHeight: calc }); } }); }, footerTap:app.footerTap })
3、wxss樣式bash
.tab-h{ height: 80rpx;width: 100%; box-sizing: border-box;overflow: hidden;line-height: 80rpx;background: #F7F7F7; font-size: 16px; white-space: nowrap;position: fixed;top: 0; left: 0; z-index: 99;} .tab-item{margin:0 36rpx;display: inline-block;} .tab-item.active{color: #4675F9;position: relative;} .tab-item.active:after{ content: "";display: block;height: 8rpx;width: 52rpx;background: #4675F9;position: absolute; bottom: 0;left: 5rpx;border-radius: 16rpx;} .item-ans{ width: 100%;display: flex; flex-grow: row no-wrap;justify-content: space-between; padding: 30rpx;box-sizing: border-box; height: 180rpx;align-items: center;border-bottom: 1px solid #F2F2F2;} .avatar{width: 100rpx;height: 100rpx;position: relative;padding-right: 30rpx;} .avatar .img{width: 100%;height: 100%;} .avatar .doyen{width: 40rpx;height: 40rpx;position: absolute;bottom: -2px;right: 20rpx;} .expertInfo{font-size: 12px;flex-grow: 2;color: #B0B0B0;line-height: 1.5em;} .expertInfo .name{font-size: 16px;color:#000;margin-bottom: 6px;} .askBtn{ width: 120rpx;height: 60rpx;line-height: 60rpx;text-align: center;font-size: 14px; border-radius: 60rpx;border: 1px solid #4675F9; color:#4675F9;} .tab-content{margin-top: 80rpx;} .scoll-h{height: 100%;}