单击暂停/播放时，Jquery滑块不会停止

Question

我正在编写一个简单的jquery滑块，目前我无法在单击播放/暂停按钮时启动它，使用if和stop = false状态启动滑块但无法使其工作，代码相当简单，但我在js中有点新手。

swapslides函数完成它的工作，它是代码中断的条件检查器。

您可以在此处查看代码：

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<script>
$(document).ready(function(){
    var stop = true;

    

    $('.play').click(function(){
		if (stop == true) {
        stop = false;
		alert(stop);
        }
        else {
        stop = true;
		alert(stop);
        }
    });
	
	if(stop == false){
	setInterval(swapSlides, 3000);
	}
	
	
    function swapSlides(){
	var cs = $('div.currentslide:first');
	var ns = cs.next();
	if(ns.hasClass('mySlides1')){
	cs.removeClass('currentslide');
	ns.addClass('currentslide');
    }
	else{
	ns = $('#polaroid1').children('div.mySlides1:first');
	cs.removeClass('currentslide');
	ns.addClass('currentslide');
	}
	}
	
});
</script>

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.play{
	position:absolute; 
	left:5px; 
	bottom:5px; 
	cursor:pointer; 
	z-index:10000;
}

.polaroid1{
	box-shadow: 10px 10px 7px -7px rgba(0, 0, 0, 0.5); 
	-webkit-backface-visibility: hidden; 
	transform: rotate(-8deg); 
	margin-bottom:30px; 
	width:380px; 
	height:320px; 
	background-color:rgba(255, 255, 255, 1.0); 
	text-align:right; 
	padding-top:10px; 
	padding-right:10px; 
	padding-left:10px; 
	padding-bottom:15px; 
	top:15px; 
	left:25px; 
	position:relative;
}

.photo1{
	width:100%;  
	height:85%; 
	position:relative;
	padding:5px;
}

.date1{
	margin:0; 
	padding-right:10px; 
	font-family: 'Covered By Your Grace', cursive; 
	transform: rotate(-5deg);
	font-size:28px;
}

.mySlides1{
	display:none;
	width:380px; 
	height:320px; 
	position:absolute; 
	top:0px; 
	left:0px;
}

.currentslide{display:block;}

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<div id="polaroid1" class="polaroid1">
  <img class="play" src="images/heart.png">
  <div class="mySlides1 fade currentslide">
    <img class="photo1" src="images/IMG-20170610-WA0028.jpg">
    <h3 class="date1">22-05-2017</h3>
  </div>
  <div class="mySlides1 fade">
    <img class="photo1" src="images/20170812_181516.jpg">
    <h3 class="date1">12-08-2017</h3>
  </div>
  <div class="mySlides1 fade">
    <img class="photo1" src="images/20170522_112958.jpg">
    <h3 class="date1">22-05-2017</h3>
  </div>
  <div class="mySlides1 fade">
    <img class="photo1" src="images/IMG-20170610-WA0017.jpg">
    <h3 class="date1">10-06-2017</h3>
  </div>
  <div class="mySlides1 fade">
    <img class="photo1" src="images/20170819_194526.jpg">
    <h3 class="date1">19-08-2017</h3>
  </div>
  <div class="mySlides1 fade">
    <img class="photo1" src="images/20170811_182103.jpg">
    <h3 class="date1">11-08-2017</h3>
  </div>
  <div class="mySlides1 fade">
    <img class="photo1" src="images/20170522_124602.jpg">
    <h3 class="date1">22-05-2017</h3>
  </div>
  <div class="mySlides1 fade">
    <img class="photo1" src="images/20170419_020725.jpg">
    <h3 class="date1">19-04-2017</h3>
  </div>
  <div class="mySlides1 fade">
    <img class="photo1" src="images/20170520_115819.jpg">
    <h3 class="date1">20-05-2017</h3>
  </div>
  <div class="mySlides1 fade">
    <img class="photo1" src="images/20170822_011703.jpg">
    <h3 class="date1">22-08-2017</h3>
  </div>
  <div class="mySlides1 fade">
    <img class="photo1" src="images/20170705_184344.jpg">
    <h3 class="date1">05-07-2017</h3>
  </div>
</div>

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Answer 1

setInterval()你没有停止间隔

添加：

var slideInterval;

并改变：

$('.play').click(function(){
    if (stop == true) {
    stop = false;
    alert(stop);
    clearInterval(slideInterval);
    }
    else {
    stop = true;
    alert(stop);
    slideInterval = setInterval(swapSlides, 3000);
    }
});

并且不需要：

if(stop == false){
   setInterval(swapSlides, 3000);
}