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  • wx 小程序开发 [记录]

     
    注意:

      <view class='icon'>
        <view class='icon'>
          <image mode='aspectFit' src='/img/arrow.png'></image>
        </view>
      </view>

      background-image 只能用网络url或者base64 . 本地图片要用image标签才行。

      text不要包含image | <text/> 组件内只支持 <text/> 嵌套。
     
    app.js
        AJX(数据请求)  - 小程序 异步
       ajx: function (that, url, data, fn, fnfail) {
            const _this = this;
            try {
                wx.request({
                    url: this.gData.ajxIp + url,
                    header: {
                        'content-type': 'application/x-www-form-urlencoded',
                        'key': wx.getStorageSync('key') || '',
                        'sessionId': wx.getStorageSync('sessionId') || ''
                    },
                    data: data,
                    method: 'POST',
                    success: function (res) {
                        if (res.data.head.code == 0) {
                            if (fn) {
                                fn(that, res.data.body) || fn;
                            }
                        } else {
                            _this.toast(that, res.data.head.text);
                            if(fnfail){
                                fnfail(that) || fnfail;
                            }
                        }
                    },
                    fail: function () {
                        _this.toast(that, '接口连接失败,请重试');
                        if(fnfail){
                            fnfail(that) || fnfail;
                        }
                    }
                })
            } catch (e) {
                that.data[thro] = true;
                this.toast(that, '接口异常');
            }
    
        },
      app.ajx(this
      , 'url'
       , ''
       , function (that, res) {
       that.setData({......})
       }
       , function (that, txt) {
       that.setData({......})
       }
      )

      顶部提示框  
      toast: function (that, msg, t) {
      that.setData({
      user: '',
      toast: {
       msg: msg,
      show: true
      }
       })
       setTimeout(function () {
      that.setData({
      ['toast.show']: false
      })
      }, t || 1500)
      },
      .toast{ 100%; position:fixed;top: -88rpx;left: 0; background: rgba(88,88,88,0.8);height: 88rpx; line-height: 88rpx; text-align: center;color: #fff;font-size: 24rpx;z-index: 9;}
      .toast.in{top: 0;}

      强制登陆
      compelLogin: function () {
       wx.reLaunch({
      url: '/pages/login/login'
      })
      }
      
      强制首页
      cantBack:function () {
       const pages = getCurrentPages();
      if(pages.length == 1){
       wx.reLaunch({url: '/pages/index/index'})
      }
      }
     
    页面url传参 取值
      
    onLoad: function (param) {
    console.log(param)
    // this.setData({
    // title: options.title
    // })
    },



    页面跳转 参考:https://www.cnblogs.com/nosqlcoco/p/6195572.html
      注意:01 小程序最多只能有五个页面同时存在,意思是在不关闭页面的情况,最多新开五个页面,页面深度为5
         02 navigateTo会重复打开page 
         03 重定向也 可以/会 重复打开page
         04 返回 只会减小页面个数

        第一种:wx.navigateTo(OBJECT)   
          保留当前页面,跳转到应用内的某个页面,使用wx.navigateBack可以返回到原页面。
        第二种:wx.redirectTo(OBJECT)
          关闭当前页面,跳转到应用内的某个页面。
        第三种:wx.navigateBack(OBJECT)
          关闭当前页面,返回上一页面或多级页面。可通过 getCurrentPages()) 获取当前的页面栈,决定需要返回几层。

      页面场景:

        页面List 开 页面Detail  --  页面Detail关闭 页面List刷新数据

        页面List 

          acrossPage(){
          const i=this.data.itab;
          const more = this.data.moreArr[i];
          this.setData({
          [more.list]: [],
          ['moreArr[' + i + '].next']: true,
          ['moreArr[' + i + '].page']: 1,
          ['moreArr[' + i + '].btn']: 2
          })
           this.ajxGetList(this.data.itab);
          setTimeout(function () {
          wx.navigateBack({delta: 1})
          },2000)
          }

      页面Detail
          const pages = getCurrentPages();
          if(pages.length > 1){
          const prePage = pages[pages.length - 2];
           if(prePage.acrossPage){
           prePage.acrossPage();
           }
          }
    
    
     
    scroll-view
        
        横向(禁止折行)
            <scroll-view scroll-x="true" class='imgList'>
                <view style='background-image: url("http://58pic.ooopic.com/58pic/17/90/73/45958PICCgf.jpg")'></view>
            </scroll-view>
         .imgList{ 100%;white-space: nowrap;display: flex;padding: 20rpx 0 15rpx;background: #fbfbfb;}
      纵向(定高度)
        <scroll-view scroll-y="true" class="scrollY" lower-threshold='150' bindscrolltolower='addList'>
        </scroll-view>
     
    页面tab切换

     注意:tab 初始化 !=0 那么 会走一次切换(if(i==0){ 初始化开始 })
      wx For循环参考 https://www.cnblogs.com/JdsyJ/p/8603891.html
     
     
     !!!!tab切换安卓卡且不可控 - 更换click  
      !!!!hidden - 且不于block上 否则无效
      !!!!hidden - 图片listWrap 定高度 否则消失
        <scroll-view scroll-x="true" class='imgList'>   Css | height:140rpx;
         <block wx:for='{{el.goodsInfo}}' wx:key='*this' wx:for-index='ii' wx:for-item='ell'>
        <view style='background-image: url("{{ell.picUrl}}")'></view>
        </block>
        </scroll-view>
    <view class='tab flex'>
    <view class='flexItem' data-curtab="0" catchtap="tabClk">
    <text class='{{itab==0?"act":""}}'>全部</text>
    </view>
    <view class='flexItem' data-curtab="1" catchtap="tabClk">
    <text class='{{itab==1?"act":""}}'>待接单</text>
    </view>
    </view>
    <scroll-view scroll-y='true' class='scrollY'>
    <view class='listWrap' hidden='{{itab!=0}}'>
    代码开始
    </view>
    <view class='listWrap' hidden='{{itab!=1}}'>
    代码开始
    </view>
    </scroll-view>
     
    showListAll: [],
      showListPay: [],
      showListPaying: [],
      showListTake: [],
      moreArr: [
        {i: 0, type: '', btn: 2, page: 1, next: true, list: 'showListAll'},
        {i: 1, type: '2', btn: 2, page: 1, next: true, list: 'showListPay'},
        {i: 2, type: '1', btn: 2, page: 1, next: true, list: 'showListPaying'},
        {i: 3, type: '3', btn: 2, page: 1, next: true, list: 'showListTake'}
      ],
      itab: 0,
      
      /*用户界面操作*/
      tabClk: function (e) {
        const i = e.currentTarget.dataset.curtab;
        this.setData({itab: i});
      },
      tabSwitch: function (e) {
        const i = e.detail.current
        const list = this.data.moreArr[i].list;
        this.setData({itab: i})
        if (this.data[list].length < 1 && this.data.moreArr[i].next) {
          this.ajxGetList(i);
        }
      },
      /*非用户界面操作*/
      loadMore(e) {
        const i = e.currentTarget.dataset.mark;
        this.setData({['moreArr[' + i + '].btn']: 2})
        this.ajxGetList(i);
      },
      
      ajxGetList: function (i) {
        const more = this.data.moreArr[i];
        app.ajx(this
          , '接口url /a/b'
          , 'pageIndex=' + more.page
          + '&pageSize=' + 15
          + '&transactionType=' + more.type
          , function (that, res) {
            let arrNew = that.data[more.list].concat(res.walletPaymentsVOList || []);
            const next = arrNew.length >= res.totalCount ? false : true
            that.setData({
              [more.list]: arrNew,
              ['moreArr[' + i + '].next']: next,
              ['moreArr[' + i + '].page']: parseInt(more.page) + 1,
              ['moreArr[' + i + '].btn']: next ? 1 : 0
            })
          }
          ,null
        )
      }
     
      
    WXML:
    <view class='container contSwiper'>
        <view class='tab flex'>
            <view class='flexItem' data-curtab='0' catchtap='tabClk'><text class='{{itab==0?"act":""}}'>全部</text></view>
            <view class='flexItem' data-curtab='1' catchtap='tabClk'><text class='{{itab==1?"act":""}}'>结算(已到账)</text></view>
        </view>
        <swiper current='{{itab}}' duration='300'  bindchange='tabSwitch' class='tabCon'>
        <swiper-item>
            <scroll-view scroll-y='true' class='scrollY'>
                <view class='listWrap'>
                    <view class='tlist' wx:if='{{showListAll.length>0}}'>
                        <block wx:for='{{showListAll}}' wx:key='*this' wx:for-index='i' wx:for-item='el'>
                            <view class='lyt' catchtap='detail'>
                                <view class='lytCon'>
                                    <view>{{el.typeName}}</view>
                                    <text>{{el.time}}</text>
                                </view>
                                <view class='lytR'><text class='{{el.arrivalStatus==1?"cue":""}}'>{{el.amount}}</text></view>
                            </view>
                        </block>
                    </view>
                    <template is="more" data='{{...moreArr[0]}}'/>
                </view>
            </scroll-view>
        </swiper-item>
            <swiper-item>
                第二个盒子
            </swiper-item>
        </swiper>
    </view>
    tab切换
     
    MD5 加密
      utils > md5.js (压缩MD5js)
        并暴露方法  module.exports = {hex_md5: hex_md5}
      引入JS:
        const md5 = require('../../utils/md5.js');
        md5.hex_md5(this.data.login.psw)
    var hexcase = 0; function hex_md5(a) { return rstr2hex(rstr_md5(str2rstr_utf8(a))) } function hex_hmac_md5(a, b) { return rstr2hex(rstr_hmac_md5(str2rstr_utf8(a), str2rstr_utf8(b))) } function md5_vm_test() { return hex_md5("abc").toLowerCase() == "900150983cd24fb0d6963f7d28e17f72" } function rstr_md5(a) { return binl2rstr(binl_md5(rstr2binl(a), a.length * 8)) } function rstr_hmac_md5(c, f) { var e = rstr2binl(c); if (e.length > 16) { e = binl_md5(e, c.length * 8) } var a = Array(16), d = Array(16); for (var b = 0; b < 16; b++) { a[b] = e[b] ^ 909522486; d[b] = e[b] ^ 1549556828 } var g = binl_md5(a.concat(rstr2binl(f)), 512 + f.length * 8); return binl2rstr(binl_md5(d.concat(g), 512 + 128)) } function rstr2hex(c) { try { hexcase } catch (g) { hexcase = 0 } var f = hexcase ? "0123456789ABCDEF" : "0123456789abcdef"; var b = ""; var a; for (var d = 0; d < c.length; d++) { a = c.charCodeAt(d); b += f.charAt((a >>> 4) & 15) + f.charAt(a & 15) } return b } function str2rstr_utf8(c) { var b = ""; var d = -1; var a, e; while (++d < c.length) { a = c.charCodeAt(d); e = d + 1 < c.length ? c.charCodeAt(d + 1) : 0; if (55296 <= a && a <= 56319 && 56320 <= e && e <= 57343) { a = 65536 + ((a & 1023) << 10) + (e & 1023); d++ } if (a <= 127) { b += String.fromCharCode(a) } else { if (a <= 2047) { b += String.fromCharCode(192 | ((a >>> 6) & 31), 128 | (a & 63)) } else { if (a <= 65535) { b += String.fromCharCode(224 | ((a >>> 12) & 15), 128 | ((a >>> 6) & 63), 128 | (a & 63)) } else { if (a <= 2097151) { b += String.fromCharCode(240 | ((a >>> 18) & 7), 128 | ((a >>> 12) & 63), 128 | ((a >>> 6) & 63), 128 | (a & 63)) } } } } } return b } function rstr2binl(b) { var a = Array(b.length >> 2); for (var c = 0; c < a.length; c++) { a[c] = 0 } for (var c = 0; c < b.length * 8; c += 8) { a[c >> 5] |= (b.charCodeAt(c / 8) & 255) << (c % 32) } return a } function binl2rstr(b) { var a = ""; for (var c = 0; c < b.length * 32; c += 8) { a += String.fromCharCode((b[c >> 5] >>> (c % 32)) & 255) } return a } function binl_md5(p, k) { p[k >> 5] |= 128 << ((k) % 32); p[(((k + 64) >>> 9) << 4) + 14] = k; var o = 1732584193; var n = -271733879; var m = -1732584194; var l = 271733878; for (var g = 0; g < p.length; g += 16) { var j = o; var h = n; var f = m; var e = l; o = md5_ff(o, n, m, l, p[g + 0], 7, -680876936); l = md5_ff(l, o, n, m, p[g + 1], 12, -389564586); m = md5_ff(m, l, o, n, p[g + 2], 17, 606105819); n = md5_ff(n, m, l, o, p[g + 3], 22, -1044525330); o = md5_ff(o, n, m, l, p[g + 4], 7, -176418897); l = md5_ff(l, o, n, m, p[g + 5], 12, 1200080426); m = md5_ff(m, l, o, n, p[g + 6], 17, -1473231341); n = md5_ff(n, m, l, o, p[g + 7], 22, -45705983); o = md5_ff(o, n, m, l, p[g + 8], 7, 1770035416); l = md5_ff(l, o, n, m, p[g + 9], 12, -1958414417); m = md5_ff(m, l, o, n, p[g + 10], 17, -42063); n = md5_ff(n, m, l, o, p[g + 11], 22, -1990404162); o = md5_ff(o, n, m, l, p[g + 12], 7, 1804603682); l = md5_ff(l, o, n, m, p[g + 13], 12, -40341101); m = md5_ff(m, l, o, n, p[g + 14], 17, -1502002290); n = md5_ff(n, m, l, o, p[g + 15], 22, 1236535329); o = md5_gg(o, n, m, l, p[g + 1], 5, -165796510); l = md5_gg(l, o, n, m, p[g + 6], 9, -1069501632); m = md5_gg(m, l, o, n, p[g + 11], 14, 643717713); n = md5_gg(n, m, l, o, p[g + 0], 20, -373897302); o = md5_gg(o, n, m, l, p[g + 5], 5, -701558691); l = md5_gg(l, o, n, m, p[g + 10], 9, 38016083); m = md5_gg(m, l, o, n, p[g + 15], 14, -660478335); n = md5_gg(n, m, l, o, p[g + 4], 20, -405537848); o = md5_gg(o, n, m, l, p[g + 9], 5, 568446438); l = md5_gg(l, o, n, m, p[g + 14], 9, -1019803690); m = md5_gg(m, l, o, n, p[g + 3], 14, -187363961); n = md5_gg(n, m, l, o, p[g + 8], 20, 1163531501); o = md5_gg(o, n, m, l, p[g + 13], 5, -1444681467); l = md5_gg(l, o, n, m, p[g + 2], 9, -51403784); m = md5_gg(m, l, o, n, p[g + 7], 14, 1735328473); n = md5_gg(n, m, l, o, p[g + 12], 20, -1926607734); o = md5_hh(o, n, m, l, p[g + 5], 4, -378558); l = md5_hh(l, o, n, m, p[g + 8], 11, -2022574463); m = md5_hh(m, l, o, n, p[g + 11], 16, 1839030562); n = md5_hh(n, m, l, o, p[g + 14], 23, -35309556); o = md5_hh(o, n, m, l, p[g + 1], 4, -1530992060); l = md5_hh(l, o, n, m, p[g + 4], 11, 1272893353); m = md5_hh(m, l, o, n, p[g + 7], 16, -155497632); n = md5_hh(n, m, l, o, p[g + 10], 23, -1094730640); o = md5_hh(o, n, m, l, p[g + 13], 4, 681279174); l = md5_hh(l, o, n, m, p[g + 0], 11, -358537222); m = md5_hh(m, l, o, n, p[g + 3], 16, -722521979); n = md5_hh(n, m, l, o, p[g + 6], 23, 76029189); o = md5_hh(o, n, m, l, p[g + 9], 4, -640364487); l = md5_hh(l, o, n, m, p[g + 12], 11, -421815835); m = md5_hh(m, l, o, n, p[g + 15], 16, 530742520); n = md5_hh(n, m, l, o, p[g + 2], 23, -995338651); o = md5_ii(o, n, m, l, p[g + 0], 6, -198630844); l = md5_ii(l, o, n, m, p[g + 7], 10, 1126891415); m = md5_ii(m, l, o, n, p[g + 14], 15, -1416354905); n = md5_ii(n, m, l, o, p[g + 5], 21, -57434055); o = md5_ii(o, n, m, l, p[g + 12], 6, 1700485571); l = md5_ii(l, o, n, m, p[g + 3], 10, -1894986606); m = md5_ii(m, l, o, n, p[g + 10], 15, -1051523); n = md5_ii(n, m, l, o, p[g + 1], 21, -2054922799); o = md5_ii(o, n, m, l, p[g + 8], 6, 1873313359); l = md5_ii(l, o, n, m, p[g + 15], 10, -30611744); m = md5_ii(m, l, o, n, p[g + 6], 15, -1560198380); n = md5_ii(n, m, l, o, p[g + 13], 21, 1309151649); o = md5_ii(o, n, m, l, p[g + 4], 6, -145523070); l = md5_ii(l, o, n, m, p[g + 11], 10, -1120210379); m = md5_ii(m, l, o, n, p[g + 2], 15, 718787259); n = md5_ii(n, m, l, o, p[g + 9], 21, -343485551); o = safe_add(o, j); n = safe_add(n, h); m = safe_add(m, f); l = safe_add(l, e) } return Array(o, n, m, l) } function md5_cmn(h, e, d, c, g, f) { return safe_add(bit_rol(safe_add(safe_add(e, h), safe_add(c, f)), g), d) } function md5_ff(g, f, k, j, e, i, h) { return md5_cmn((f & k) | ((~f) & j), g, f, e, i, h) } function md5_gg(g, f, k, j, e, i, h) { return md5_cmn((f & j) | (k & (~j)), g, f, e, i, h) } function md5_hh(g, f, k, j, e, i, h) { return md5_cmn(f ^ k ^ j, g, f, e, i, h) } function md5_ii(g, f, k, j, e, i, h) { return md5_cmn(k ^ (f | (~j)), g, f, e, i, h) } function safe_add(a, d) { var c = (a & 65535) + (d & 65535); var b = (a >> 16) + (d >> 16) + (c >> 16); return (b << 16) | (c & 65535) } function bit_rol(a, b) { return (a << b) | (a >>> (32 - b)) };
    module.exports = {
        hex_md5: hex_md5
    }
    MD5 代码收藏
    模板 Template
      template > template

      <!--
      toast:object
         msg: string
         show(isShow): boolean
      -->
      <template name='toast'>
        <view class='toast {{show?"in":""}}'><text>{{msg}}</text></view>
      </template>
     
      使用:
        <import src="/pages/template/template.wxml"/>
        <template is="toast" data='{{...toast}}'/>   WXML
        data > toast: {msg: '提示', show: false},    JS
     
     
      数据加载更多
    <!--
    more:object
       btn: number 1 btn 2 loading 3 no more
       i: number mark index
    catchtap:loadMore
    -->
    <template name='more'>
    <view class='loadMoreWrap'>
    <view wx:if="{{btn==1}}" class='loadMore' data-mark='{{i}}' catchtap='loadMore'>加载更多...</view>
    <view wx:if="{{btn==2}}" class='loading'>
    <image src='/img/loading.gif'></image>
    <text>正在加载</text>
    </view>
    <view wx:if="{{btn==0}}" class='noData'>
    <text>没有更多了</text>
    </view>
    </view>
    </template>
    moreArr: [
    {i: 0, type: '', btn: 2, page: 1, next: true, list: 'showListAll'},
    {i: 1, type: '2', btn: 2, page: 1, next: true, list: 'showListPay'},
    {i: 2, type: '1', btn: 2, page: 1, next: true, list: 'showListPaying'},
    {i: 3, type: '3', btn: 2, page: 1, next: true, list: 'showListTake'}
    ],
    <import src="/pages/template/template.wxml"/>
    <template is="more" data='{{...moreArr[0]}}'/>


    页面Loading中
    <!--
    waiting:object
       load: bool
       text: string
    -->
    <template name='waiting'>
    <view class='pageLoad {{load?"in":""}}'>
    <view>
    <image src='/img/pageLoad.png'></image>
    <text>{{text||'Loading...'}}</text>
    </view>
    </view>
    </template>
    <template is="waiting" data='{{...waiting}}'/>
    waiting: {load: true, text: ''}
     
    重新根据手机计算高度  

      const that = this; wx.getSystemInfo({ success: function (res) { that.setData({ winH: parseFloat(res.windowHeight)*2-400 }); } });
    /**app.wxss**/
    .container {
      /* height: 100%;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: space-between;
      padding: 200rpx 0;
      box-sizing: border-box; */
      font-size: 28rpx;
      color: #333;
      padding-bottom: 20rpx;
    }
    .contSwiper{position: fixed;height: 100%;width: 100%;}
    
    .sf{font-size: 24rpx;}
    .xf{font-size: 32rpx;}
    .xxf{font-size: 36rpx;}
    
    .mainClr{color: #149aff;}
    .cue{color: #ff7800;}
    
    .icon{display: inline-block;}
    .icon>image{width: 100%;height: 100%;}
    
    .fr{float: right;}
    .cf:after{ content: ''; display: block; clear: both; height: 0; overflow: hidden; visibility: hidden;}
    .cf{zoom: 1;}
    
    .flex{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient: horizontal;-webkit-box-direction: normal;-ms-flex-direction: row;flex-direction: row;-ms-flex-wrap: nowrap;flex-wrap: nowrap;}
    .flexItem{-webkit-box-flex: 1;-ms-flex: 1;flex: 1;}
    
    .btn,.lbtn{background: #149aff;color: #fff;font-size:32rpx;height: 100rpx;line-height: 100rpx;border-radius: 50rpx;}
    .lbtn{background: #fff;color: #149aff;overflow: inherit;}
    .lbtn:after{border-color: #149aff;border-radius: 100rpx;}
    
    .loadMoreWrap{height: 98rpx;width: 100%;font-size: 24rpx;border-top: 10rpx solid #eee;text-align: center;line-height: 88rpx;}
    .loadMore{background: #fff;}
    .loading>text{background: no-repeat left center;padding-left: 20rpx;}
    .loading>image{width: 30rpx;height: 30rpx;position: relative;top: 5rpx;}
    .noData{position: relative;}
    .noData:after{content: '';width: 60%;height:1rpx;background:#ccc;position: absolute;top: 44rpx;left: 20%;}
    .noData text{background: #f4f4f4;padding: 0 20rpx;position: relative;z-index: 1;color: #999;}
    
    .toast{width: 100%; position:fixed;top: -88rpx;left: 0; background: rgba(88,88,88,0.8);height: 88rpx; line-height: 88rpx; text-align: center;color: #fff;font-size: 24rpx;z-index: 9;}
    .toast.in{top: 0;}
    
    .pageLoad{position: fixed;width: 100%;height: 100%;background: #fff;z-index: 10;text-align: center;display: none;}
    .pageLoad.in{display: block;}
    .pageLoad>view{position: absolute;top: 30%;width: 100%;}
    .pageLoad image{width: 200rpx;height: 69rpx;margin-bottom: 40rpx;}
    .pageLoad text{letter-spacing:4rpx;color: #149aff;display: block;}
    
    .lyt{padding: 30rpx  130rpx 30rpx 190rpx;}
    .lyt:after{clear: both;content: " ";display: table;}
    .lyt>view,.lytL,.lytR,.lytCon{float: left;}
    .lytCon{width: 100%;}
    .lytL{width: 140rpx;margin-left: -160rpx;}
    .lytR{width: 100rpx;margin-right: -100rpx;float: right;}
    
    .p{position: relative;height: 100%;}
    .p:after{content: '';display: block;width: 1rpx;height: 100%; background: #eee;position: absolute;right: 0;top:30%;height: 40%;}
    
    .tran,.toast,.pageLoad{-webkit-transition:all 0.3s;-o-transition:all 0.3s;transition:all 0.3s;}
    ::-webkit-scrollbar{width: 0;height: 0;color: transparent;}
    app.wxss
    小程序 生命周期

      app:

       小程序初始化完成 onLaunch

       监听小程序显示 onShow  |  监听小程序隐藏 onHide

      页面:

        监听页面加载 onLoad  |  监听页面初次渲染完成 onReady

        监听页面显示 onShow  |  监听页面隐藏 onHide

        监听页面卸载 onUnload

        监听用户下拉动作 onPullDownRefresh  |  页面上拉触底 onReachBottom

        点击右上角分享 onShareAppMessage

        参考:https://www.2cto.com/kf/201801/712060.html

       

    配置:
      http://www.miitbeian.gov.cn/publish/query/indexFirst.action
      注: baidu.com

    开发工具:
      不符合 request 合法域名
      解决:工具  --  详情  --  不校验
     
    -----   项目分割   ------------------------------------------------------
     
    pages >   html文件夹  > js + json +wxml + wxss
    
    wxml: 
        view  ≈  div
        text  ≈  span
    
        <view class='inputs {{addressChange?"":"noData"}}' catchtap='getAddress'>
        {{addressChange?"":"noData"}}  
        catchtap 方法绑定 无冒泡
    
        <view class='lytGrailCon'><input bindinput ="iStoreName" value="{{sStoreName}}" placeholder='请输入公司/店铺/网店名称' placeholder-class="gray"></input></view>
        bindinput
        placeholder-class  input的placeholder颜色设置样式
    
        <picker bindchange='pickChange' data-param="sltType" value='{{sltType.index}}' range='{{sltType.arr}}'>
            <text>{{sltType.show}}</text>
        </picker>
        下面弹出选择器 单选 
        bindchange='pickChange'
        range='{{sltType.arr}}'
    
        <block wx:for='{{sltCategory.arr}}' wx:key='unique'>
          <text data-index='{{index}}' class='{{item.checked?"cur":""}}' catchtap='choCategory'>{{item.name}}</text>
        </block>
    
    json:
        {
          "navigationBarTitleText": "wx标题"
        }
    
    wxss:
        单位:rpx
    
    js:
        var app = getApp();
        data > { 页面展示数据 } ≈ avalon define
    
        data平级方法
            注意this  var _this = this;
            _this.setData({
                addressChange:true
             })
             改变data里面的值
    
        input 绑定的方法
            iStoreName:function (e) {
                var _this=this;
                var val=e.detail.value;
                if(_this.handleVal.notEmpty(val)){
                  if(val.length<=30){
                  }else {
                    _this.showSToast('公司名称输入过长');
                    val=val.substr(0,30);
                    console.log(val)
                  }
                }else {
                  _this.showSToast('请输入公司名称');
                }
                _this.setData({sStoreName: val})
              },
    
        picker 绑定的方法
            pickChange:function (e) {
               var _this=this;
               var _param=e.currentTarget.dataset.param;
               var show;
               switch (_param){
                 case 'sltCategory':show=this.data.sltCategory.arr[e.detail.value];break;
                 case 'sltType':show=this.data.sltType.arr[e.detail.value];break;
                 case 'sltSales':show=this.data.sltSales.arr[e.detail.value];break;
                 default:
                   break;
               }
               var _obj={
                 index:_param+'.index',
                 show:_param+'.show',
                 isChange:_param+'.isChange'
               };
               _this.setData({
                 [_obj.index]:e.detail.value,
                 [_obj.show]:show,
                 [_obj.isChange]:true
               })
             },
    
        wx ajax请求
            wx.request({
              url: app.globalData.ajxApi('请求url'),
              header: {'content-type': 'application/x-www-form-urlencoded'},
              data: {jsonObj:JSON.stringify(objJson)},
              method: 'POST',
              success: function(res){},
              fail: function() {}
            })
        wx 关闭当前开下个窗口
            wx.redirectTo({
                url: '../URL'
            })
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  • 原文地址:https://www.cnblogs.com/caiCheryl/p/8267598.html
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