<view class="section tc">

  <video id="myVideo" src="http://wxsnsdy.tc.qq.com/105/20210/snsdyvideodownload?filekey=30280201010421301f0201690402534804102ca905ce620b1241b726bc41dcff44e00204012882540400&bizid=1023&hy=SH&fileparam=302c020101042530230204136ffd93020457e3c4ff02024ef202031e8d7f02030f42400204045a320a0201000400"   enable-danmu danmu-btn controls></video>

  <view class="btn-area">

    <input bindblur="bindInputBlur"/>

    <button bindtap="bindSendDanmu">发送弹幕</button>

  </view>

</view>

function getRandomColor() {

  let rgb = []

  for (let i = 0; i < 3; ++i) {

    let color = Math.floor(Math.random() * 256).toString(16)

    color = color.length == 1 ? '0' + color : color

    rgb.push(color)

  }

  return '#' + rgb.join('')

}

Page({

  onReady: function (res) {

    this.videoContext = wx.createVideoContext('myVideo')

    console.log(wx.createVideoContext('myVideo'))

  },

  inputValue: '',

  bindInputBlur: function (e) {

    this.inputValue = e.detail.value

  },

  bindSendDanmu: function () {

    this.videoContext.sendDanmu({

      text: this.inputValue,

      color: getRandomColor()

    })

  }

})