实现“我的”页面

在“我的”页面里获取用户信息
显示用户的头像和昵称
页面布局代码如下

<view>
  <view class='banner'>
    <view class="userinfo">
      <button wx:if="{{!hasUserInfo && canIUse}}" open-type="getUserInfo" bindgetuserinfo=
      "getUserInfo"> 获取头像昵称 </button>
      <block wx:else>
        <image bindTap="bindViewTap" class="userinfo-avatar" src="{{userInfo.avatarUrl}}"
        background-size="cover"></image>
        <text class="userinfo-nickname">{{userInfo.nickName}}</text>
      </block>
    </view>
  </view>
  <view class="page__bd">
    <view class="weui-panel__ft">
      <view class="weui-cell weui-cell_access">
        <view class="weui-cell__bd">我的收藏</view>
        <view class="weui-cell__ft weui-cell__ft_in-access"></view>
      </view>
    </view>
    <view class="weui-panel__ft">
      <view class="weui-cell weui-cell_access">
        <view class="weui-cell__bd">查看更多</view>
        <view class="weui-cell__ft weui-cell__ft_in-access"></view>
      </view>
    </view>
  </view>
</view>

在index.js里获取用户信息，代码如下

//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')
  },
    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 {
      // 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
          })
        }
      })
    }
  },
  getUserInfo: function (e) {
    console.log(e)
    app.globalData.userInfo = e.detail.userInfo
    this.setData({
      userInfo: e.detail.userInfo,
      hasUserInfo: true
    })
  }
})