微信小程序視頻彈幕位置隨機

更新時間：2021年04月30日 07:47:22 投稿：lijiao

這篇文章主要介紹了微信小程序視頻彈幕位置隨機，文中示例代碼介紹的非常詳細，具有一定的參考價值，感興趣的小伙伴們可以參考一下

本文實例為大家分享了微信小程序視頻彈幕位置隨機的具體代碼，供大家參考，具體內(nèi)容如下

最近更新開發(fā)工具之后，微信小程序視頻播放彈幕不再自動隨機，所以就用了一個比較取巧的方法(多條空彈幕和自己要發(fā)送的彈幕一起發(fā)送，利用隨機數(shù)控制順序就行了);

wxml代碼

<!--pages/study/video/videoplay/videoplay.wxml-->
<view class="page-body">
  <view class="page-section tc">
    <video 
      id="myVideo" 
      src="http://wxsnsdy.tc.qq.com/105/20210/snsdyvideodownload?filekey=30280201010421301f0201690402534804102ca905ce620b1241b726bc41dcff44e00204012882540400&bizid=1023&hy=SH&fileparam=302c020101042530230204136ffd93020457e3c4ff02024ef202031e8d7f02030f42400204045a320a0201000400" 
      binderror="videoErrorCallback" 
      danmu-list="{{danmuList}}" 
      enable-danmu 
      danmu-btn 
      show-center-play-btn='{{false}}' 
      show-play-btn="{{true}}" 
      controls
      picture-in-picture-mode="{{['push', 'pop']}}"
      bindenterpictureinpicture='bindVideoEnterPictureInPicture'
      bindleavepictureinpicture='bindVideoLeavePictureInPicture'
    ></video>
    <view style="margin: 30rpx auto" class="weui-label">彈幕內(nèi)容</view>
    <input bindblur="bindInputBlur" class="weui-input" type="text" placeholder="在此處輸入彈幕內(nèi)容" />
    <button style="margin: 30rpx auto"  bindtap="bindSendDanmu" class="page-body-button" type="primary" formType="submit">發(fā)送彈幕</button>
    <navigator style="margin: 30rpx auto"  url="picture-in-picture" hover-class="other-navigator-hover">
      <button type="primary" class="page-body-button" bindtap="bindPlayVideo">小窗模式</button>
    </navigator>
  </view>
</view>

js代碼

// pages/study/video/videoplay/videoplay.js
var that;
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: 'page/component/pages/video/video'
    }
  },
 
  onReady() {
    that = this;
    this.videoContext = wx.createVideoContext('myVideo')
  },
 
  onHide() {
 
  },
 
  inputValue: '',
  data: {
    src: '',
    danmuList:
    [{
      text: '第 1s 出現(xiàn)的彈幕',
      color: '#ff0000',
      time: 1
    }, {
      text: '第 3s 出現(xiàn)的彈幕',
      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('進入小窗模式')
  },
 
  bindVideoLeavePictureInPicture() {
    console.log('退出小窗模式')
  },
 
  bindPlayVideo() {
    this.videoContext.play()
  },
  bindSendDanmu() {
    // 利用循環(huán)和隨機數(shù)調(diào)整位置
    var ranNum = Math.floor(Math.random()*10);
    var danmuList = [];
    for (let index = 0; index < 10; index++) {
      danmuList.push('');
    }
    danmuList[ranNum] = this.inputValue;
    for (let index = 0; index < danmuList.length; index++) {
      this.videoContext.sendDanmu({
        text: danmuList[index],
        color: '#ff0000'
      });
    }
  },
 
  videoErrorCallback(e) {
    console.log('視頻錯誤信息:')
    console.log(e.detail.errMsg)
  }
})

以上就是本文的全部內(nèi)容，希望對大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。

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