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  2. Autoscroll to bottom of page then top and repeat

Autoscroll to bottom of page then top and repeat

由 倖福魔咒の 提交于 2019-11-29 22:16:22

问题


I have created a dashboard which echos out all the rows but I want an auto scroll which will slowly scroll down the bottom of the page and then scroll slowly back to the top and repeat. I have googled this and can't get a working code. I have been looking for jQuery codes but anything will do.

Because the page will adjust all the time it cant have fixed height scroll.

Not sure if you need more information but if you do I will update this question.

Regards Gambit


回答1:


You could use something like this.

//run instantly and then goes after (setTimeout interval)

    $("html, body").animate({ scrollTop: $(document).height() }, 4000);
    setTimeout(function() {
       $('html, body').animate({scrollTop:0}, 4000); 
    },4000);
  var scrolltopbottom =  setInterval(function(){
         // 4000 - it will take 4 secound in total from the top of the page to the bottom
    $("html, body").animate({ scrollTop: $(document).height() }, 4000);
    setTimeout(function() {
       $('html, body').animate({scrollTop:0}, 4000); 
    },4000);

    },8000);

​//Use this to stop the scroller -> clearInterval(scrolltopbottom);

Example: http://jsfiddle.net/NaP8D/11/




回答2:


you should try this for better result

//run instantly and then goes after (setTimeout interval)

$("html, body").animate({ scrollTop: $(document).height() }, 4000);

setTimeout(function() {
   $('html, body').animate({scrollTop:0}, 4000); 
},4000);


setInterval(function(){
     // 4000 - it will take 4 secound in total from the top of the page to the bottom
$("html, body").animate({ scrollTop: $(document).height() }, 4000);
setTimeout(function() {
   $('html, body').animate({scrollTop:0}, 4000); 
},4000);
    
},8000);


$('html, body').mouseover(function(e) {
$(this).stop(true);
      
    }).mouseout(function() {
         $(this).stop(false);
    });
    
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</div>

http://jsfiddle.net/neelu/gvvnd0tt/8/




回答3:


Here, this should work good, just change 5000 to the time in ms to adjust the speed.

http://jsfiddle.net/BDc6S/3/

function scrollDown(el) {
    el.animate({
        scrollTop: el[0].scrollHeight
    }, 5000, function() {
        scrollUp(el)
    });
};

function scrollUp(el) {
    el.animate({
        scrollTop: 0
    }, 5000, function() {
        scrollDown(el);
    });
};

scrollDown($("html,body"));​



回答4:


function doSomething() {
  $(document).scrollTop($(document).height());
}
setInterval(doSomething, 5000);

This will scroll to bottom of the page every 5 seconds. This will be useful, if you have auto load content based on user scroll like facebook.



来源：https://stackoverflow.com/questions/12477722/autoscroll-to-bottom-of-page-then-top-and-repeat

标签
jquery
autoscroll
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