wanzb_xcxv2/pages/today/today.js

// pages/today/today.js
import * as echarts from '../../ec-canvas/echarts';
const $api = require('../../utils/api.js').API;
var id, record_id, records = [], today_stock=[];
Page({

  /**
   * 页面的初始数据
   */
  data: {
    ec: {
      onInit: null
    },
    ec1: {
      onInit: null
    }
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    // options.id = 7, options.record_id = 29014
    id = options.id, record_id = options.record_id
    this.setData({
      id: id,
      record_id: record_id,
      player_id: options.player_id ? options.player_id:''
    })
    this.getData();
  },
  getData(){
    wx.showNavigationBarLoading();
    var data = {}
    if (this.data.id) {
      data.id = this.data.id
    }
    if (this.data.player_id) {
      data.player_id = this.data.player_id
    }
    if (this.data.record_id) {
      data.record_id = this.data.record_id
    }
    $api.getPlayerMatch(data).then(res=>{
      this.setData({
        datas: res.data.data,
        is_follow: res.data.data.is_follow,
        ec: {
          onInit: initChart
        },
        ec1: {
          onInit: initChart1
        }
      })
      records = res.data.data.records
      today_stock = res.data.data.today_record.today_stock
      wx.hideNavigationBarLoading()
    })
    .catch(err=>{
      wx.hideNavigationBarLoading()
    })
    //每日持股
    var parm={
      id: data.id, player_id: this.data.player_id
    }
    $api.getRecordList(parm).then(res=>{
        this.setData({
          stockList:res.data.data.list
        })
    })
  },
  //预览
  preview(e) {
    wx.previewImage({
      urls: e.target.dataset.urls,
      current: e.target.dataset.src
    })
  },
  followPlayer(e){
    let action = e.target.dataset.action;
    $api.follow({ follow_id: this.data.player_id, action:action}).then(res=>{
      wx.showToast({
        title: action?'取消成功':'已关注',
      })
      this.setData({
        is_follow: !this.data.is_follow
      })
    })
  },

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

  },

  /**
   * 生命周期函数--监听页面显示
   */
  onShow: function () {

  },

  /**
   * 生命周期函数--监听页面隐藏
   */
  onHide: function () {

  },

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

  },

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

  },

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

  },

  /**
   * 用户点击右上角分享
   */
  onShareAppMessage: function () {

  }
})


/**折线图 */
function initChart(canvas, width, height, dpr) {
    var xdata = [], ydata = [];
    for (let i = 0; i < records.length; i++) {
      let date = records[i].stock_date.split('-');
      xdata.push(date[1] + '/' + date[2])
      let y = records[i].total_income.replace('%', '')
      ydata.push(Number(y))
    }
    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: 50,
        y: 40,
        x2: 10,
        y2: 35
      },
      tooltip: {
        show: true,
        trigger: 'axis',
        formatter: '{b0}: {c0}%'
      },
      xAxis: {
        type: 'category',
        data: xdata,
        axisLabel: {
          interval: 0,
          rotate: 40,
          color: '#999999',
          interval: 2
        }
      },
      yAxis: {
        axisLine: {
          show: true
        },
        type: 'value',
        name: '收益曲线',
        axisLabel: {
          formatter: function (value, index) {//隐藏 0
            let texts = [];
            texts.push(value + '%')
            return texts;
          },
          show: true
        },
      },
      series: [{
        name: 'A',
        type: 'line',
        smooth: true,
        symbolSize: 8,
        lineStyle: {
          color: '#FF2D68'
          // 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;
}




function initChart1(canvas, width, height, dpr) {
  const chart = echarts.init(canvas, null, {
    width: width,
    height: height,
    devicePixelRatio: dpr // new
  });
  canvas.setChart(chart);
  today_stock.forEach(item=>{
    item.value = item.fund
  })
  var radius = today_stock.length<9?'65%':'50%';
  var option = {
    backgroundColor: "#ffffff",
    legend: {
      show: true,
      orient: 'vertical',
      right: '1%',
      formatter: function (name){
        var index = 0;
        today_stock.forEach(function (value, i) {
          if (value.name == name) {
            index = i;
          }
        });
        return name + "  " + today_stock[index].value;
      }
    },
    series: [{
      label: {
        
        normal: {
          show: true,
          fontSize: 12,
          formatter: function (a) {
            return Math.round(a.percent)+'%'
          }
        }
      },
      type: 'pie',
      center: ['37%', '40%'],
      radius: ['0%', radius],
      data: today_stock
      
    }]
  };

  chart.setOption(option);
  return chart;
}