微信小程序picker多列選擇器怎么用

本篇內(nèi)容主要講解“微信小程序picker多列選擇器怎么用”，感興趣的朋友不妨來(lái)看看。本文介紹的方法操作簡(jiǎn)單快捷，實(shí)用性強(qiáng)。下面就讓小編來(lái)帶大家學(xué)習(xí)“微信小程序picker多列選擇器怎么用”吧!

在海曙等地區(qū)，都構(gòu)建了全面的區(qū)域性戰(zhàn)略布局，加強(qiáng)發(fā)展的系統(tǒng)性、市場(chǎng)前瞻性、產(chǎn)品創(chuàng)新能力，以專注、極致的服務(wù)理念，為客戶提供網(wǎng)站設(shè)計(jì)制作、成都做網(wǎng)站網(wǎng)站設(shè)計(jì)制作定制網(wǎng)站設(shè)計(jì),公司網(wǎng)站建設(shè),企業(yè)網(wǎng)站建設(shè),成都品牌網(wǎng)站建設(shè),全網(wǎng)營(yíng)銷推廣,成都外貿(mào)網(wǎng)站建設(shè)公司,海曙網(wǎng)站建設(shè)費(fèi)用合理。

vue-next-admin，這是基于 vue3.x + CompositionAPI + typescript + vite + element plus + vue-router-next + next.vuex，適配手機(jī)、平板、pc 的后臺(tái)開(kāi)源免費(fèi)模板庫(kù)

一、效果圖（多列）

微信小程序picker多列選擇器怎么用

二、普通選擇器：mode = selector、多列選擇器：mode = multiSelector

文檔地址：微信開(kāi)發(fā)文檔 picker選擇器

普通選擇器：mode = selector，一維數(shù)組：array: ["美國(guó)", "中國(guó)", "巴西", "日本"]
多列選擇器：mode = multiSelector，二維數(shù)組：multiArray: [["無(wú)脊柱動(dòng)物", "脊柱動(dòng)物"], ["扁性動(dòng)物", "線形動(dòng)物", "環(huán)節(jié)動(dòng)物", "軟體動(dòng)物", "節(jié)肢動(dòng)物"], ["豬肉絳蟲(chóng)", "吸血蟲(chóng)"]]

格式不對(duì)，要處理成對(duì)應(yīng)數(shù)組格式，占坑圖：

微信小程序picker多列選擇器怎么用

三、app.json

{
  "pages": [
    "pages/index/index",
    "pages/logs/logs",
    "pages/picker/picker"
  ],
  "entryPagePath": "pages/picker/picker",
  "window": {
    "backgroundTextStyle": "light",
    "navigationBarBackgroundColor": "#fff",
    "navigationBarTitleText": "Weixin",
    "navigationBarTextStyle": "black"
  },
  "sitemapLocation": "sitemap.json",
  "usingComponents": {
    "van-button": "@vant/weapp/button/index",
    "van-area": "@vant/weapp/area/index"
  }
}

四、picker.wxml

<!--pages/picker/picker.wxml-->
<view>
  <view class="section__title">多列選擇器</view>
  <picker mode="multiSelector" bindchange="bindMultiPickerChange" bindcolumnchange="bindMultiPickerColumnChange"
    value="{{multiIndex}}" range="{{newArr}}">
    <view class="picker">
      當(dāng)前選擇： <van-button type="primary">
        {{newArr[0][multiIndex[0]]}}，{{newArr[1][multiIndex[1]]}}，{{newArr[2][multiIndex[2]]}}</van-button>
    </view>
  </picker>
</view>

五、picker.js

多列選擇器：mode = multiSelector

注意看數(shù)組格式：multiArray數(shù)組 有 children，要處理二維數(shù)組：

// pages/picker/picker.js
Page({
  /**
   * 頁(yè)面的初始數(shù)據(jù)
   */
  data: {
    multiArray: [{
        id: 1,
        label: "東南",
        children: [{
            id: 2,
            label: "上海",
            children: [{
                id: 3,
                label: "普陀",
              },
              {
                id: 4,
                label: "黃埔",
              },
              {
                id: 5,
                label: "徐匯",
              },
            ],
          },
          {
            id: 7,
            label: "江蘇",
            children: [{
                id: 8,
                label: "南京",
              },
              {
                id: 9,
                label: "蘇州",
              },
              {
                id: 10,
                label: "無(wú)錫",
              },
            ],
          },
          {
            id: 12,
            label: "浙江",
            children: [{
                id: 13,
                label: "杭州",
              },
              {
                id: 14,
                label: "寧波",
              },
              {
                id: 15,
                label: "嘉興",
              },
            ],
          },
        ],
      },
      {
        id: 17,
        label: "西北",
        children: [{
            id: 18,
            label: "陜西",
            children: [{
                id: 19,
                label: "西安",
              },
              {
                id: 20,
                label: "延安",
              },
            ],
          },
          {
            id: 21,
            label: "新疆維吾爾族自治區(qū)",
            children: [{
                id: 22,
                label: "烏魯木齊",
              },
              {
                id: 23,
                label: "克拉瑪依",
              },
            ],
          },
        ],
      },
    ],
    multiIndex: [0, 0, 0],
    multiIds: [],
    newArr: [],
  },

  bindMultiPickerChange(e) {
    console.log(this.data.multiIds);
  },
  bindMultiPickerColumnChange(e) {
    let data = {
      newArr: this.data.newArr,
      multiIndex: this.data.multiIndex,
      multiIds: this.data.multiIds,
    };
    data.multiIndex[e.detail.column] = e.detail.value;

    let searchColumn = () => {
      let arr1 = [];
      let arr2 = [];
      this.data.multiArray.map((v, vk) => {
        if (data.multiIndex[0] === vk) {
          data.multiIds[0] = {
            ...v,
          };
          v.children.map((c, ck) => {
            arr1.push(c.label);
            if (data.multiIndex[1] === ck) {
              data.multiIds[1] = {
                ...c,
              };
              c.children.map((t, vt) => {
                arr2.push(t.label);
                if (data.multiIndex[2] === vt) {
                  data.multiIds[2] = {
                    ...t,
                  };
                }
              });
            }
          });
        }
      });
      data.newArr[1] = arr1;
      data.newArr[2] = arr2;
    };
    switch (e.detail.column) {
      case 0:
        // 每次切換還原初始值
        data.multiIndex[1] = 0;
        data.multiIndex[2] = 0;
        // 執(zhí)行函數(shù)處理
        searchColumn();
        break;
      case 1:
        data.multiIndex[2] = 0;
        searchColumn();
        break;
    }
    this.setData(data);
  },

  /**
   * 生命周期函數(shù)--監(jiān)聽(tīng)頁(yè)面加載
   */
  onLoad: function (options) {
    let state = {
      arr: [],
      arr1: [],
      arr2: [],
      arr3: [],
      multiIds: []
    }
    this.data.multiArray.map((v, vk) => {
      state.arr1.push(v.label);
      if (this.data.multiIndex[0] === vk) {
        state.multiIds[0] = v;
      }
      if (state.arr2.length <= 0) {
        v.children.map((c, ck) => {
          state.arr2.push(c.label);
          if (this.data.multiIndex[1] === ck) {
            state.multiIds[1] = c;
          }
          if (state.arr3.length <= 0) {
            c.children.map((t, tk) => {
              state.arr3.push(t.label);
              if (this.data.multiIndex[2] === tk) {
                state.multiIds[2] = t;
              }
            });
          }
        });
      }
    });
    state.arr[0] = state.arr1;
    state.arr[1] = state.arr2;
    state.arr[2] = state.arr3;
    this.setData({
      newArr: state.arr,
      multiIds: state.multiIds,
    });
  },

  /**
   * 生命周期函數(shù)--監(jiān)聽(tīng)頁(yè)面初次渲染完成
   */
  onReady: function () {},

  /**
   * 生命周期函數(shù)--監(jiān)聽(tīng)頁(yè)面顯示
   */
  onShow: function () {},

  /**
   * 生命周期函數(shù)--監(jiān)聽(tīng)頁(yè)面隱藏
   */
  onHide: function () {},

  /**
   * 生命周期函數(shù)--監(jiān)聽(tīng)頁(yè)面卸載
   */
  onUnload: function () {},

  /**
   * 頁(yè)面相關(guān)事件處理函數(shù)--監(jiān)聽(tīng)用戶下拉動(dòng)作
   */
  onPullDownRefresh: function () {},

  /**
   * 頁(yè)面上拉觸底事件的處理函數(shù)
   */
  onReachBottom: function () {},

  /**
   * 用戶點(diǎn)擊右上角分享
   */
  onShareAppMessage: function () {},
});

到此，相信大家對(duì)“微信小程序picker多列選擇器怎么用”有了更深的了解，不妨來(lái)實(shí)際操作一番吧！這里是創(chuàng)新互聯(lián)網(wǎng)站，更多相關(guān)內(nèi)容可以進(jìn)入相關(guān)頻道進(jìn)行查詢，關(guān)注我們，繼續(xù)學(xué)習(xí)！

新聞名稱：微信小程序picker多列選擇器怎么用
本文網(wǎng)址：http://chinadenli.net/article14/ipdsge.html

成都網(wǎng)站建設(shè)公司_創(chuàng)新互聯(lián)，為您提供App設(shè)計(jì)、品牌網(wǎng)站制作、關(guān)鍵詞優(yōu)化、定制網(wǎng)站、網(wǎng)站導(dǎo)航、網(wǎng)頁(yè)設(shè)計(jì)公司

聲明：本網(wǎng)站發(fā)布的內(nèi)容（圖片、視頻和文字）以用戶投稿、用戶轉(zhuǎn)載內(nèi)容為主，如果涉及侵權(quán)請(qǐng)盡快告知，我們將會(huì)在第一時(shí)間刪除。文章觀點(diǎn)不代表本網(wǎng)站立場(chǎng)，如需處理請(qǐng)聯(lián)系客服。電話：028-86922220；郵箱：631063699@qq.com。內(nèi)容未經(jīng)允許不得轉(zhuǎn)載，或轉(zhuǎn)載時(shí)需注明來(lái)源：創(chuàng)新互聯(lián)

猜你還喜歡下面的內(nèi)容

欧美一区二区三区老妇人-欧美做爰猛烈大尺度电-99久久夜色精品国产亚洲a-亚洲福利视频一区二区

微信小程序picker多列選擇器怎么用

一、效果圖（多列）

二、普通選擇器：mode = selector、多列選擇器：mode = multiSelector

三、app.json

四、picker.wxml

五、picker.js