JS使用tween.js动画库实现轮播图并且有切换功能
程序员文章站
2022-04-18 18:57:05
效果图如下所示:
效果图如下所示:
<!doctype html> <html lang="zh-cn"> <head> <meta charset="utf-8"> <title>document</title> <style> .wrap{ width: 500px; height: 300px; position: relative; overflow: hidden; } .box{ width: 500%; height: 100%; position: absolute; left: 0; } .box>div{ width: 500px; height: 300px; float: left; font-size: 100px; text-align: center; line-height: 300px; } div:nth-child(1){ background-color: red; } div:nth-child(2){ background-color: green; } div:nth-child(3){ background-color: pink; } div:nth-child(4){ background-color: blue; } </style> </head> <body> <input type="button" value="last"> <input type="button" value="next"> <input type="button" value="按钮1" class="ha"> <input type="button" value="按钮2" class="ha"> <input type="button" value="按钮3" class="ha"> <input type="button" value="按钮4" class="ha"> <div class="wrap"> <div class="box"> <div id="one">div1</div> <div>div2</div> <div>div3</div> <div>div4</div> <div id="one">div1</div> </div> </div> </body> <script src="./tween.js"></script> <script> //获取元素 var inps = document.queryselectorall("input"); var box = document.queryselector(".box"); var ha = document.queryselectorall(".ha"); //记录图片下标 var index = 0; var w = -500; var timer = null; //自动播放 //放在计时器就是自动播放,骑士就是下一张的操作 function autoimg(){ index++; if(index>3){ // console.log(index); index=0; // console.log(index); } //动画开始时间 var t = 0; //动画结束时间 var d = 30; //动画的起始位置 var b = box.offsetleft; //动画的终止位置减去动画的起始位置,该变量为-500 // var c =index*w-b; console.log(c); var c = -500; if(b<=-1500){ b=0; } clearinterval(timer); timer = setinterval(function(){ t++; box.style.left=tween.linear(t,b,c,d)+"px"; if(t>=d){ clearinterval(timer); } },30); } //关闭轮播 function clearauto(){ clearinterval(autotimer); autotimer = setinterval(autoimg,3000); } var autotimer = setinterval(autoimg,3000); //下一张 inps[1].onclick = function(){ clearauto(); autoimg(); } //上一张 function previmg(){ index--; if(index<0){ index=3; } //动画开始时间 var t = 0; //动画结束时间 var d = 30; //动画的起始位置 var b = box.offsetleft; //动画的终止位置减去动画的起始位置 var c =index*w-b; clearinterval(timer); timer = setinterval(function(){ t++; box.style.left=tween.linear(t,b,c,d)+"px"; if(t>=d){ clearinterval(timer); } },30); } inps[0].onclick = function(){ clearauto(); previmg(); } function indeximg(n){ index = n; var t = 0; //动画结束时间 var d = 30; //动画的起始位置 var b = box.offsetleft; //动画的终止位置减去动画的起始位置 var c =index*w-b; clearinterval(timer); timer = setinterval(function(){ t++; box.style.left=tween.linear(t,b,c,d)+"px"; if(t>=d){ clearinterval(timer); } },30); } for(var i=0;i<ha.length;i++){ (function(i){ ha[i].onclick = function(){ // box.style.left = (-500*(i-2))+"px"; clearauto(); indeximg(i); console.log(i); } })(i); } </script> </html>
总结
以上所述是小编给大家介绍的js使用tween.js动画库实现轮播图并且有切换功能,希望对大家有所帮助