<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">傳送彈幕</button>
  </view>
</view>

//隨機顏色
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) {//呼叫API
    this.videoContext = wx.createVideoContext('myVideo')
  },
  inputValue: '',
  bindInputBlur: function (e) {//獲取input框的值
 

    console.log(e.detail.value)
    this.inputValue = e.detail.value//把值賦給inputValue
  },
  bindSendDanmu: function () {
      //sendDanmu   danmu   傳送彈幕，danmu 包含兩個屬性 text, color。
    this.videoContext.sendDanmu({
      text: this.inputValue,
      color: getRandomColor()
    })
  }
})