wanzb_xcx/pages/gameDetail/gameDetail.js

import * as echarts from '../../ec-canvas/echarts';

const app = getApp();
var host = app.globalData.host;
var id;

Page({
  onShareAppMessage: function (res) {
    return {
      title: 'ECharts 可以在微信小程序中使用啦！',
      path: '/pages/index/index',
      success: function () { },
      fail: function () { }
    }
  },
  data: {
    ec: {
      onInit: initChart
    }
  },

  onLoad(options) {
    id=options.id
    this.setData({
      id:id
    })
    wx.showNavigationBarLoading()
    /**获取token */
    wx.getStorage({
      key: 'userInfo',
      success: res => {
        this.setData({
          userInfo: res.data
        })
        this.getData(options.id);
      },
      fail: error => {
        //跳转到登陆页面
        wx.switchTab({
          url: '../user/user',
        })
      }
    })
  },
  getData(id) {
    wx.request({
      url: host + '/api/wx/player/match',
      data: { id: id },
      header: {
        'Authorization': this.data.userInfo.token
      },
      success: res => {
        console.log(res)
        this.setData({
          datas: res.data.data
        })
        wx.hideNavigationBarLoading()
      },
      fail: error => {
        //跳转到登陆页面
        wx.switchTab({
          url: '../user/user',
        })
      }
    })
  },
});

/**折线图 */
function initChart(canvas, width, height, dpr) {

  wx.getStorage({
    key: 'userInfo',
    success: res => {
      var info = res.data
      wx.request({
        url: host + '/api/wx/player/match',
        data:{id:id},
        header: {
          'Authorization': info.token
        },
        success: res => {
          var records = res.data.data.records, xdata = [], ydata = [];
          for (let i = 0; i < records.length; i++) {
            let date = records[i].stock_date.split('-');
            xdata.push(date[1] + '/' + date[2])
            ydata.push(records[i].today_fund)
          }
          xdata = xdata.reverse()
          ydata = ydata.reverse()
          const chart = echarts.init(canvas, null, {
            width: width,
            height: height,
            devicePixelRatio: dpr // new
          });
          canvas.setChart(chart);
          var option = {
            legend: {
              show: false
            },
            grid: {
              x: 35,
              y: 40,
              x2: 10,
              y2: 35
            },
            tooltip: {
              show: true,
              trigger: 'axis'
            },
            xAxis: {
              type: 'category',
              data: xdata,
              axisLabel: {
                interval: 0,
                rotate: 40,
                color: '#999999'
              }
            },
            yAxis: {
              axisLine: {
                show: true
              },
              type: 'value',
              name: '收益曲线',
            },
            series: [{
              name: 'A',
              type: 'line',
              smooth: true,
              symbolSize: 8,
              lineStyle: {
                color: new echarts.graphic.LinearGradient(1, 0, 0, 0, [{
                  offset: 0,
                  color: '#FF2D68'
                }, {
                  offset: 1,
                  color: '#4C4BFF'
                }]),
              },
              itemStyle: {
                borderWidth: 5,
                borderColor: '#FFAD52',
                color: '#FFAD52'
              },
              data: ydata
            }]
          };

          chart.setOption(option);
          return chart;
        }
      })
    },
  })


}