• 微信小程序scroll-view


    <scroll-view class='tabli' scroll-x="true" scroll-left="{{navScrollLeft}}" scroll-with-animation="{{true}}">
    <view class='item' wx:for="{{ arr }}" wx:for-index="idx" wx:for-item="navItem" wx:key="idx">{{navItem}}</view>
    </scroll-view>
     
     
     
    .tabli{
      height:80rpx;
      100%;
      box-sizing:border-box;
      /* overflow:hidden;
      line-height:80rpx;
      background:#f7f7f7;
      font-size:14px; */
      white-space:nowrap;
      /* position:fixed;
      top:0;
      left:0;
      z-index:99; */
    }

    .daohangwrap{
       100%;
    }

    .tabli .item{
       20%;
      display: inline-block;
      text-align: center;
    }
     
     
     
     
     
    //index.js
    //获取应用实例
    const app = getApp()

    Page({
    data: {
      motto: 'Hello World',
      userInfo: {},
      hasUserInfo: false,
      canIUse: wx.canIUse('button.open-type.getUserInfo'),
      pixelRatio: '',
      windowHeight: '',
      windowWidth: '',
      arr: [
        "导航1", '导航2', '导航3', '导航4', '导航5', '导航6', '导航7', '导航8'
      ],
      navScrollLeft:0,
      currentTab:0
    },
    //事件处理函数
    bindViewTap: function() {
      wx.navigateTo({
      url: '../logs/logs'
    })
    },
    //事件处理函数
    onLoad: function () {
      if (app.globalData.userInfo) {
        this.setData({
        userInfo: app.globalData.userInfo,
        hasUserInfo: true
      })
    } else if (this.data.canIUse) {
      // 由于 getUserInfo 是网络请求,可能会在 Page.onLoad 之后才返回
      // 所以此处加入 callback 以防止这种情况
      app.userInfoReadyCallback = res => {
        this.setData({
          userInfo: res.userInfo,
          hasUserInfo: true
      })
    }
    } else {
    // 在没有 open-type=getUserInfo 版本的兼容处理
    wx.getUserInfo({
    success: res => {
    app.globalData.userInfo = res.userInfo
    this.setData({
    userInfo: res.userInfo,
    hasUserInfo: true
    })
    }
    })
    }


    wx.getSystemInfo({
    success: (res) => {
    this.setData({
    pixelRatio: res.pixelRatio,
    windowHeight: res.windowHeight,
    windowWidth: res.windowWidth
    })
    },
    })

     
    },
    checktab:function(e){

    console.log(e.currentTarget.dataset.index);
    var current = e.currentTarget.dataset.index;
    var singleNavWidth = this.data.windowWidth / 5;

    this.setData({
    navScrollLeft: singleNavWidth*(current-2),

    })
     
    if (current == this.data.currentTab){
    return false;
    }else{
    this.setData({
    currentTab: current

    })
    }
    },
    switchtab:function(e){
    var current = e.detail.current;
    console.log("获取导航位置"+current);
    this.setData({
    navScrollLeft: (current-2)*(this.data.windowWidth/5),
    currentTab: current
    })
    },
    getUserInfo: function(e) {
    console.log(e)
    app.globalData.userInfo = e.detail.userInfo
    this.setData({
    userInfo: e.detail.userInfo,
    hasUserInfo: true
    })
    }
    })
     
     
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  • 原文地址:https://www.cnblogs.com/geekjsp/p/9552847.html
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