JS实现幻灯片轮播自适应屏幕宽度并支持手机触屏滑动
本文使用js+jQuery实现轮播图，需要引用jquery包，另种实现分别是animate实现自适应的轮播，以及transform平滑轮播（在注释代码中）。
代码中的图片大家自己更换就可以了，样式和逻辑均写在js里。
html标签代码：
<div class="slider"> //轮播箭头 <p class="lastpic"><img src="../images/prev.png"> <p class="nextpic"><img src="../images/next.png"> //轮播图片 <ul id="slides" class="slides clearfix"> <li><img class="responsive" src="../images/wrap-page.jpg" alt="暂无图片"></li> <li><img class="responsive" src="../images/wrap-page.jpg" alt="暂无图片"></li> <li><img class="responsive" src="../images/wrap-page.jpg" alt="暂无图片"></li> <li><img class="responsive" src="../images/wrap-page.jpg" alt="暂无图片"></li> </ul> </div>
js代码：
<script type="text/javascript">
$(document).ready(function() {
var len = $(".slider li").length-1;
//给slider设置样式
$(".slider").css({
"width":"100%",
"height": "inherit",
"overflow": "hidden",
"display":"inline-block"
});
//给ul设置宽度
$(".slides").css({
"position": "relative",
"width":((len+1)*100).toString()+"%",
"margin":"0",
"padding":"0"});
//给li设置百分比宽度
$(".slides li").css({
"width":(100/(len+1)).toString()+"%",
"float":"left"
});
//给图片设置宽度
$(".responsive").css({
"width":"100%",
"height":"inherit"
});
//控制点样式
$(".slider p").css({
"position": "absolute",
"z-index":"999",
"cursor": "pointer"
});
$(".slider .lastpic").css({
"left":"0",
"margin-top":"7%"
});
$(".slider .nextpic").css({
"right":"0",
"margin-top":"7%"
});
//animate移动
var i = 0;
$(".nextpic").click(function(){
moveNext(i);
});
$(".lastpic").click(function(){
moveLast(i);
});
//自动轮播
var timer = setInterval(function(){
moveNext(i);
},5000);
moveNext = function(n){
if(n==len){
i=-1;
$(".slider .slides").animate({right: ""},800);
}else{
$(".slider .slides").animate({right:((n+1)*100).toString()+"%"}, 800);
}
i++;
}
moveLast = function(n){
if(n==0){
i=len+1;
$(".slider .slides").animate({right:(len*100).toString()+"%"}, 800);
}else{
$(".slider .slides").animate({right:((n-1)*100).toString()+"%"}, 800);
}
i--;
}
//手机触摸效果
var startX,endX,moveX;
function touchStart(event){
var touch = event.touches[0];
startX = touch.pageX;
}
function touchMove(event){
var touch = event.touches[0];
endX = touch.pageX;
}
function touchEnd(event){
moveX = startX - endX;
if(moveX>50){
moveNext(i);
}else if(moveX<-50){
moveLast(i);
}
}
document.getElementById("slides").addEventListener("touchstart",touchStart,false);
document.getElementById("slides").addEventListener("touchmove",touchMove,false);
document.getElementById("slides").addEventListener("touchend",touchEnd,false);
//transition移动固定宽度，无法自适应
// $(".nextpic").click(function(){
// if(i==len){
// i=-1;
// $(".slider .slides").css({
// 'transition-timing-function':'linear',
// 'transition-duration':'800ms',
// 'transform':'translateX(0px)'
// })
// }else{
// $(".slider .slides").css({
// 'transition-timing-function':'linear',
// 'transition-duration':'800ms',
// 'transform':'translateX(-'+(i+1)*width+'px)'
// })
// }
// i++;
// });
// $(".lastpic").click(function(){
// if(i==0){
// i=len+1;
// $(".slider .slides").css({
// 'transition-timing-function':'linear',
// 'transition-duration':'800ms',
// 'transform':'translateX(-'+len*width+'px)'
// })
// }else{
// $(".slider .slides").css({
// 'transition-timing-function':'linear',
// 'transition-duration':'800ms',
// 'transform':'translateX(-'+(i-1)*width+'px)'
// })
// }
// i--;
// })
});
</script>
本文标题：《JS实现幻灯片轮播自适应屏幕宽度并支持手机触屏滑动》
网址：https://zhangwenbao.com/js-slide-screen-width-support-adaptive-sliding-touch-screen-mobile.html
