wxlitian/miniprogram/pages/search/search.ts

import GoodApi from '../../services/good'
import { share } from '../../utils/http'
import Navi from '../../utils/navi'

// pages/search/search.ts
Page({
  /**
   * 页面的初始数据
   */
  data: {
    tags: [] as string[],
    focusable: false,
    showResult: false,
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad(query: { from: string }) {
    if (query.from === 'cate') {
      this.setData({
        showResult: true,
      })
    }
  },

  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady() {},

  /**
   * 生命周期函数--监听页面显示
   */
  onShow() {
    this.setData({
      focusable: true,
    })
    this.handleReload()
  },

  /**
   * 生命周期函数--监听页面隐藏
   */
  onHide() {
    this.setData({
      focusable: false,
    })
  },

  /**
   * 生命周期函数--监听页面卸载
   */
  onUnload() {},

  /**
   * 页面相关事件处理函数--监听用户下拉动作
   */
  onPullDownRefresh() {},

  /**
   * 页面上拉触底事件的处理函数
   */
  onReachBottom() {},

  /**
   * 用户点击右上角分享
   */
  onShareAppMessage() {
		let pages = getCurrentPages(); //获取所有页面栈实例列表
		let nowPage = pages[pages.length - 1]; //当前页页面实例

		return {
			title: share.title,
			path: `/${nowPage.route}`,
			imageUrl: share.imageUrl,
			success(res) {
				console.log('success(res)==', res);
			},
			fail(res) {
				console.log('fail(res)==', res);
			}
		}
  },

  handleInput(e: WechatMiniprogram.CustomEvent<{ value: string }>) {
    console.log(e.detail.value)
    const keyword = e.detail.value
    const cacheSearch = wx.getStorageSync('searchkeys')
    let keywords: string[] = []
    if (cacheSearch) {
      keywords = keywords.concat(JSON.parse(cacheSearch))
    }
    if (keyword && keyword.replace(/ /gi, '').length > 0 && keywords.indexOf(keyword) < 0) {
      keywords.splice(0, 0, keyword)
      wx.setStorageSync('searchkeys', JSON.stringify(keywords))
      this.setData({
        tags: keywords,
      })
    }
    this.goes(keyword)
  },
  handleClick(e: WechatMiniprogram.CustomEvent<{}, {}, { keyword: string }>) {
    this.goes(e.currentTarget.dataset.keyword)
  },
  handleReload() {
    const cacheSearch = wx.getStorageSync('searchkeys')
    let keywords: string[] = []
    if (cacheSearch) {
      keywords = keywords.concat(JSON.parse(cacheSearch))
    }
    this.setData({
      tags: keywords,
    })
  },
  goes(keyword: string) {
    if (this.data.showResult) {
      Navi.navigateTo({
        url: '/pages/search/result?keyword=' + keyword,
      })
    } else {
      const pages = getCurrentPages() //获取小程序页面栈
      const beforePage = pages[pages.length - 2] //获取上个页面的实例对象
      beforePage.research(keyword) //触发上个页面自定义的shuaxin方法
      wx.navigateBack({
        delta: 1,
      })
    }
  },
})