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  • 【实例】原生 js 实现全屏滚动效果

    其他,插件:http://www.dowebok.com/77.html

    原理: 1. 计算当前浏览器屏幕高度,每次翻页显示的内容高度即为屏幕高度

                 2. 对鼠标滚轮事件进行监听,注意滚轮事件的浏览器兼容问题。

    废话不多说,直接上代码

    html代码:

     1     <span style="font-size:18px;"><span style="font-size:14px;"><div id="wrap">  
     2         <div id="main" style="top: 0;">  
     3             <div class="content num1">  
     4                 <img src="https://www.bing.com/az/hprichbg/rb/SingingRingingTree_ZH-CN12497946624_1920x1080.jpg" width="100%" height="100%">  
     5             </div>  
     6             <div class="content num2">  
     7                 <img src="https://www.bing.com/az/hprichbg/rb/ShenandoahNP_ZH-CN9981989975_1920x1080.jpg" width="100%" height="100%">  
     8             </div>  
     9             <div class="content num3">  
    10                 <img src="https://www.bing.com/az/hprichbg/rb/GareSaintLazare_ZH-CN6611772290_1920x1080.jpg" width="100%" height="100%">  
    11             </div>  
    12             <div class="content num4">  
    13                 <img src="https://www.bing.com/az/hprichbg/rb/FriendshipSquare_ZH-CN8820626148_1920x1080.jpg" width="100%" height="100%">  
    14             </div>  
    15         </div>  
    16     </div></span></span>  

     css代码:

    1     <span style="font-size:14px;">#wrap{overflow: hidden;width: 100%;}  
    2     #main{top: 0;position: relative;}  
    3     .content{width: 100%;margin: 0;height: 100%;}  
    4     .num1{background: #e8e8e8;}  
    5     .num2{background: pink;}  
    6     .num3{background: yellow;}  
    7     .num4{background: orange;}</span>  

    js代码:

     1     <span style="font-size:14px;"><script type="text/javascript">  
     2         var wrap = document.getElementById("wrap");  
     3           
     4         var divHeight = window.innerHeight;  
     5           
     6         wrap.style.height = divHeight + "px";  
     7       
     8         var content = $(".content");//懒得写获取类的原生js代码了,直接用了jquery,=。=  
     9       
    10         content.height(divHeight);  
    11       
    12         var startTime = 0, //开始翻屏时间  
    13             endTime = 0,  
    14             now = 0;     
    15       
    16         if ((navigator.userAgent.toLowerCase().indexOf("firefox")!=-1)){  
    17             //for firefox;  
    18             document.addEventListener("DOMMouseScroll",scrollFun,false);  
    19           
    20         }  
    21         else if (document.addEventListener) {  
    22           
    23             document.addEventListener("mousewheel",scrollFun,false);  
    24           
    25         }  
    26         else if (document.attachEvent) {  
    27           
    28             document.attachEvent("onmousewheel",scrollFun);  
    29           
    30         }  
    31         else{  
    32           
    33             document.onmousewheel = scrollFun;  
    34           
    35         }  
    36       
    37         //滚动事件处理函数  
    38         function scrollFun(event){  
    39       
    40                 startTime = new Date().getTime();  
    41       
    42                 var delta = event.detail || (-event.wheelDelta);  
    43       
    44                 if ((endTime - startTime) < -1000) {  
    45                     //1秒内执行一次翻页  
    46       
    47                     if (delta > 0 && parseInt(main.style.top) > -divHeight * ( content.length - 1)) { //向下翻页  
    48       
    49                         now += divHeight ;  
    50       
    51                         turnPage(now);  
    52       
    53                     }   
    54       
    55                     if (delta < 0 && parseInt(main.style.top) < 0) { //向上翻页  
    56       
    57                         now -= divHeight ;  
    58       
    59                         turnPage(now);  
    60       
    61                     }  
    62       
    63                     endTime = new Date().getTime();  
    64       
    65                 }  
    66                 else{  
    67       
    68                     event.preventDefault();  
    69       
    70                 }  
    71                   
    72         }  
    73       
    74         //翻页函数  
    75         function turnPage(now){  
    76               
    77             $("#main").animate({top:(-now+'px')},1000);  
    78       
    79             //懒得写动画代码了,直接用了jquery</span><span style="font-size:14px;">,=。=  
    80         }  
    81     </script></span>  
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  • 原文地址:https://www.cnblogs.com/LeeHT/p/6202535.html
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