Question

我完成了对我的网站进行编码并将图像滑块添加到着陆页。我是javascript的新手所以我复制并粘贴了一个图像滑块演示并根据我的需要调整了一下。我有4张图像，我间隔一段时间淡入下一张图像。我现在要做的是让你点击任何图像时自动播放幻灯片将暂停，然后你可以点击继续。我整天都在浏览论坛和教程，但是我迷失了。任何帮助将不胜感激。感谢。

HTML

 <ul id="slider">
  <li><img src="images/img1.png"/></li>
  <li><img src="images/img2.png"/></li>
  <li><img src="images/img3.png"/></li>
  <li><img src="images/img4.png"/></li>
</ul>

的JavaScript

<script>
$(function () {
    var change_img_time = 5000;
    var transition_speed = 100;
    var simple_slideshow = $("#slider"),
        listItems = simple_slideshow.children('li'),
        listLen = listItems.length,
        i = 0,
        changeList = function () {
            listItems.eq(i).fadeOut(transition_speed, function () {
                i += 1;
                if (i === listLen) {
                    i = 0;
                }
                listItems.eq(i).fadeIn(transition_speed);
            });
        };
    listItems.not(':first').hide();
    setInterval(changeList, change_img_time);
});
</script>

Answer 1

尝试

$(function () {


    var change_img_time = 5000;
    var transition_speed = 100;

    var simple_slideshow = $("#slider"),
        listItems = simple_slideshow.children('li'),
        listLen = listItems.length,
        i = 0,

        changeList = function () {

            listItems.eq(i).fadeOut(transition_speed, function () {
                i += 1;
                if (i === listLen) {
                    i = 0;
                }
                listItems.eq(i).fadeIn(transition_speed);
            });

        };

    listItems.not(':first').hide();
    var timer = setInterval(changeList, change_img_time);
    listItems.click(function () {
        if (timer) {
            clearTimeout(timer);
            timer = undefined;
        } else {
            timer = setInterval(changeList, change_img_time);
        }
    })
});

演示：Fiddle

Answer 2

我尝试使用jquery在以下网址为您创建示例演示。

http://jsfiddle.net/codebombs/ukNmT/

请根据您的需要检查并进行修改。

//To store timeout id
var timeoutId;

var slideImage = function( step ) {

    if ( step == undefined ) step = 1;

    //Clear timeout if any
    clearTimeout ( timeoutId );

    //Get current image's index
    var indx = $('.item:visible').index('.item');

    //If step == 0, we don't need to do any fadein our fadeout
    if ( step != 0 ) {
       //Fadeout this item
       $('.item:visible').fadeOut();
    }

    //Increment for next item
    indx = indx + step ;

    //Check bounds for next item
    if ( indx >= $('.item').length ) {
        indx = 0;
    } else if ( indx < 0 ) {
        indx = $('.item').length - 1;
    }

    //If step == 0, we don't need to do any fadein our fadeout
    if ( step != 0 ) {
       //Fadein next item
       $('.item:eq(' + indx + ')').fadeIn();
    }

    //Set Itmeout
    timeoutId = setTimeout ( slideImage, 5000 );
};

//Start sliding
slideImage(0);

//When clicked on prev
$('#prev').click(function() {

    //slideImage with step = -1
    slideImage ( -1 );   
});

//When clicked on next
$('#next').click(function() {

     //slideImage with step = 1
     slideImage ( 1 );
});

//When clicked on Pause
$('#pause').click(function() {

   //Clear timeout
   clearTimeout ( timeoutId );    

    //Hide Pause and show Play
    $(this).hide();
    $('#play').show();
});

//When clicked on Play
$('#play').click(function() {

   //Start slide image
   slideImage(0);

   //Hide Play and show Pause
   $(this).hide();
   $('#pause').show();    
});

暂停并播放javascript滑块事件onclick

2 个答案: