原理: 1. 計算當前瀏覽器屏幕高度,每次翻頁顯示的內容高度即爲屏幕高度
2. 對鼠標滾輪事件進行監聽,注意滾輪事件的瀏覽器兼容問題。
廢話不多說,直接上代碼
html代碼:
<span style="font-size:18px;"><span style="font-size:14px;"><div id="wrap">
<div id="main" style="top: 0;">
<div class="content num1">
<img src="https://www.bing.com/az/hprichbg/rb/SingingRingingTree_ZH-CN12497946624_1920x1080.jpg" width="100%" height="100%">
</div>
<div class="content num2">
<img src="https://www.bing.com/az/hprichbg/rb/ShenandoahNP_ZH-CN9981989975_1920x1080.jpg" width="100%" height="100%">
</div>
<div class="content num3">
<img src="https://www.bing.com/az/hprichbg/rb/GareSaintLazare_ZH-CN6611772290_1920x1080.jpg" width="100%" height="100%">
</div>
<div class="content num4">
<img src="https://www.bing.com/az/hprichbg/rb/FriendshipSquare_ZH-CN8820626148_1920x1080.jpg" width="100%" height="100%">
</div>
</div>
</div></span></span>
css代碼:
<span style="font-size:14px;">#wrap{overflow: hidden;width: 100%;}
#main{top: 0;position: relative;}
.content{width: 100%;margin: 0;height: 100%;}
.num1{background: #e8e8e8;}
.num2{background: pink;}
.num3{background: yellow;}
.num4{background: orange;}</span>
js代碼:
<span style="font-size:14px;"><script type="text/javascript">
var wrap = document.getElementById("wrap");
var divHeight = window.innerHeight;
wrap.style.height = divHeight + "px";
var content = $(".content");//懶得寫獲取類的原生js代碼了,直接用了jquery,=。=
content.height(divHeight);
var startTime = 0, //開始翻屏時間
endTime = 0,
now = 0;
if ((navigator.userAgent.toLowerCase().indexOf("firefox")!=-1)){
//for firefox;
document.addEventListener("DOMMouseScroll",scrollFun,false);
}
else if (document.addEventListener) {
document.addEventListener("mousewheel",scrollFun,false);
}
else if (document.attachEvent) {
document.attachEvent("onmousewheel",scrollFun);
}
else{
document.onmousewheel = scrollFun;
}
//滾動事件處理函數
function scrollFun(event){
startTime = new Date().getTime();
var delta = event.detail || (-event.wheelDelta);
if ((endTime - startTime) < -1000) {
//1秒內執行一次翻頁
if (delta > 0 && parseInt(main.style.top) > -divHeight * ( content.length - 1)) { //向下翻頁
now += divHeight ;
turnPage(now);
}
if (delta < 0 && parseInt(main.style.top) < 0) { //向上翻頁
now -= divHeight ;
turnPage(now);
}
endTime = new Date().getTime();
}
else{
event.preventDefault();
}
}
//翻頁函數
function turnPage(now){
$("#main").animate({top:(-now+'px')},1000);
//懶得寫動畫代碼了,直接用了jquery</span><span style="font-size:14px;">,=。=
}
</script></span>