小程序wx.navigateTo跨页面传递数据

微信开发文档：developers.weixin.qq.com/miniprogram…

案例

1、A页面传递

    wx.navigateTo({
      url: '/pages/index/index',
      success: (res) => {
        res.eventChannel.emit('selectEmit', { active: { id: 1, name: "张珊" } })
      }
    })

2、B页面接收

  onShow() {
    const eventChannel = this.getOpenerEventChannel()
    if (eventChannel && eventChannel.on) {
      eventChannel.on('selectEmit', (data) => {
        const { active } = data
        this.setData({ active })
      })
    }
  }

3、B页面接收参数修改后，回传A页面

      wx.navigateBack({
        delta: 1,
        success: (res) => {
          const pages = getCurrentPages();
          const currentPage = pages[pages.length - 1];
          currentPage.setData({active:this.data.active||{}})
        }
      })