<video  data-icon="0" src="" data-state="a" style="width:100%;height:13.1875rem;" id="videoBox" webkit-playsinline playsinline></video>//video标签
<div class="btnPlay"><img class="left" src="images/playBagin.png" alt="" data-icon="0"><p class="progressTime left">0:00</p></div>//开始按钮div
<div class="progressBox" id="progressBox_special">
<div class="progressBar"></div>//蓝条进度条div
<div class="imgBox"><img id="progressImg" src="images/progressPointer.png" alt=""></div></div>//进度条拖拉图片divBox
<div class="biggerBtn" data-icon="0"><img class="right" src="images/allBigger.png" alt=""><p class="allTime right"></p></div></div>//全屏div

var  video  =  document.getElementById("video");
var video2 = $("#video");
//视频总时间
video2.on(‘loadedmetadata‘, function() {
   var time = video.duration;
   $(‘.allTime‘).text(time.toFixed(2));
});
//视频进度时间
video2.on(‘timeupdate‘, function() {
   var time = video.currentTime,alltime = video.duration;    
   var percentage = 100 *(time / alltime); 
   $(‘.progressTime‘).text(time.toFixed(2));
   $(‘.progressBar‘).css({‘width‘:percentage + ‘%‘});
   $(‘.stateBox .progressBox .imgBox img‘).css({‘margin-left‘:percentage +‘%‘});
   if(time == alltime){
          $(‘.btnPlay img‘).attr(‘src‘,‘images/playBagin.png‘); //如果播放时间到总时间播放按钮图片换成停止图片
   }
});

//视频开始按钮事件
$(‘.btnPlay img‘).on(‘touchend‘,function(){
        if(video.paused) {
        video.play();
        $(this).attr(‘src‘,‘images/pause_btn.png‘);
        }else {
        video.pause();
        $(this).attr(‘src‘,‘images/playBagin.png‘);
        }
        return false;
        }) 

//拖拉函数
function changeBar(item){
   var progress = $(‘.progressBox‘);
   var maxduration = video.duration; //视频总时间
   var barIcon = $(‘.nav .biggerBtn‘).attr(‘data-icon‘),position,percentage;
   if(barIcon == 0){
        position = item - progress.offset().left; //横屏模式
   }else{
        position = item - progress.offset().top; //全屏竖屏模式
   }
   percentage = 100 * (position / progress.width());
   if(percentage > 100) {
      percentage = 100;
   }
   if(percentage < 0) {
      percentage = 0;
   }
   $(‘.progressBar‘).css(‘width‘, percentage+‘%‘);
   $(‘.stateBox .progressBox .imgBox img‘).css({‘margin-left‘:percentage +‘%‘});
   video.currentTime = maxduration * (percentage / 100);//视频进度时间传给当前时间
   video.play();
   $(‘.btnPlay img‘).attr(‘src‘,‘images/pause_btn.png‘); 
}
//视频拖拉按钮事件
var progressBox = document.getElementById(‘progressBox_special‘);
progressBox.addEventListener(‘touchstart‘, progressBox_item, false);
function progressBox_item(e){
         var barIcon = $(‘.nav .biggerBtn‘).attr(‘data-icon‘);
         var point = fristPoint(e);
         if(barIcon == 0){
            changeBar(point.pageX);
         }else{
              changeBar(point.pageY);     
         }
};
//拖拉按钮
var statePic = document.getElementById(‘progressImg‘);
statePic.addEventListener(‘touchmove‘, itemMove, false);//发现h5的touchmove行为要通过addEventListener注册
function itemMove(e){
    e.stopPropagation();//阻止默认行为
    var barIcon = $(‘.nav .biggerBtn‘).attr(‘data-icon‘);
    var point = fristPoint(e);
      if(barIcon == 0){
            changeBar(point.pageX);//横屏
         }else{
              changeBar(point.pageY); //全屏竖屏    
         }
};
//第一个手指为准
function fristPoint(e){
        return e.touches ? e.touches[0] : e;
}

 //点击全屏
var itemHeight = document.documentElement.clientHeight;//获取手机高度
var itemWidth = document.documentElement.clientWidth;//手机宽度
$(‘.biggerBtn img‘).on(‘touchend‘,function(event){
        event.stopPropagation();
        var dataIcon = $(this).parent().attr(‘data-icon‘);
        if(dataIcon == 0){
                        $(‘.nav‘).css({‘-webkit-transform‘:‘rotate(90deg)‘});//直接把视频旋转90°，给video高度宽度重新赋值。
                        $(‘.nav video‘).css({‘width‘:itemHeight,‘height‘:itemWidth});
                        $(‘.stateBox‘).css({‘width‘:itemHeight});
                        $(‘.biggerBtn‘).attr(‘data-icon‘,‘1‘);
                        $(‘.nav video‘).attr(‘data-icon‘,‘1‘);
                }else{
                        $(‘.nav‘).css({‘-webkit-transform‘:‘rotate(0deg)‘});
                        $(‘.nav video‘).css({‘width‘:itemWidth,‘height‘:‘13.1875rem‘});
                        $(‘.stateBox‘).css({‘width‘:itemWidth});
                        $(‘.biggerBtn‘).attr(‘data-icon‘,‘0‘);
                        $(‘.nav video‘).attr(‘data-icon‘,‘0‘);
                }
});