combination/miniprogram/packageComponent/pages/media/video/video.js

function getRandomColor() {
  const 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({
  onShareAppMessage() {
    return {
      title: 'video',
      path: 'packageComponent/pages/media/video/video'
    }
  },

  onReady() {
    this.videoContext = wx.createVideoContext('myVideo')
  },

  onHide() {

  },

  inputValue: '',
  data: {
    theme: 'light',
    enableAutoRotation: true,
    src: '',
    danmuList:
    [{
      text: '第 1s 出现的弹幕',
      color: '#ff0000',
      time: 1
    }, {
      text: '第 3s 出现的弹幕',
      color: '#ff00ff',
      time: 3
    }],
  },

  bindInputBlur(e) {
    this.inputValue = e.detail.value
  },

  bindButtonTap() {
    const that = this
    wx.chooseVideo({
      sourceType: ['album', 'camera'],
      maxDuration: 60,
      camera: ['front', 'back'],
      success(res) {
        that.setData({
          src: res.tempFilePath
        })
      }
    })
  },

  bindVideoEnterPictureInPicture() {
    console.log('进入小窗模式')
  },

  bindVideoLeavePictureInPicture() {
    console.log('退出小窗模式')
  },

  bindPlayVideo() {
    this.videoContext.play()
  },
  bindSendDanmu() {
    this.videoContext.sendDanmu({
      text: this.inputValue,
      color: getRandomColor()
    })
  },

  videoErrorCallback(e) {
    console.log('视频错误信息:')
    console.log(e.detail.errMsg)
  },
  handleSwitchChange(e) {
    this.setData({
      enableAutoRotation: e.detail.value
    })
  },
  onLoad() {
    this.setData({
      theme: wx.getSystemInfoSync().theme || 'light'
    })

    if (wx.onThemeChange) {
      wx.onThemeChange(({theme}) => {
        this.setData({theme})
      })
    }
  }
})