我在使用CSS transition
属性动态创建简单的JavaScript幻灯片轮播时遇到问题。
轮播可以正常工作,但是CSS transition
无法按预期工作。我在这里想念什么吗?
这里是JS Bin
HTML
<div id="slider-wrapper">
<ul>
<li data-active="true">Slide one</li>
<li data-active="false">Slide two</li>
<li data-active="false">Slide three</li>
</ul>
</div>
CSS
#slider-wrapper {
float: left;
width: 500px;
border: thin dotted;
/* overflow-x: hidden; */
height: 100px;
}
#slider-wrapper ul {
list-style-type: none;
margin: 0;
padding: 0;
width: 100%;
height: 100px;
}
#slider-wrapper ul li {
list-style-type: none;
margin: 0;
width: 100%;
clear: both;
height: 100px;
float: left;
display: none;
margin-left: 100%;
}
#slider-wrapper ul li[data-active='true'] {
display: block !important;
margin: 0 !important;
transition: margin 1s;
}
JavaScript
// get slide deck (returns ul)
var slideDeck = document.getElementById('slider-wrapper').children[0];
/** slideIndex
* @param integer
* @return object
*/
function slideIndex(par) {
for (var i = 0; i < slideDeck.children.length; i++) {
if (slideDeck.children[i].getAttribute("data-active") == "true") {
var activeSlide = slideDeck.children[i];
var slideIndex;
// previous slide
if (par == -1) {
// if currently on first slide
if (i == 0) {
slideIndex = slideDeck.children.length - 1;
}
else {
slideIndex = i - 1;
}
}
// current slide
else if (par == 0) {
slideIndex = i;
}
// next slide
else if (par == 1) {
// if currently on last slide
if (i == slideDeck.children.length - 1) {
slideIndex = 0;
}
else {
slideIndex = i + 1;
}
}
return {
el: slideDeck.children[slideIndex],
index: slideIndex
};
}
}
}
// run a timeout loop to linear transgression
setInterval(function() {
// get slides
var currentSlideElement = slideIndex(0).el;
var previousSlideElement = slideIndex(-1).el;
var nextSlideElement = slideIndex(1).el;
currentSlideElement.setAttribute("data-active", "false");
nextSlideElement.setAttribute("data-active", "true");
console.log('ok');
}, 5500);
正如我的评论中所述:
每个状态的
display
值都不同。即使您仅尝试转换margin
,display
的更改也会影响到它并使margin
无效。
您应该尝试使用translate
和opacity
代替,因为无论如何您都具有固定的高度(如果应该根据内容来确定高度,则这种解决方案会分崩离析,但这不是问题的一部分,所以我'我认为这没问题)。>>
// get slide deck (returns ul) var slideDeck = document.getElementById('slider-wrapper').children[0]; /** slideIndex * @param integer * @return object */ function slideIndex(par) { for (var i = 0; i < slideDeck.children.length; i++) { if (slideDeck.children[i].getAttribute("data-active") == "true") { var activeSlide = slideDeck.children[i]; var slideIndex; // previous slide if (par == -1) { // if currently on first slide if (i == 0) { slideIndex = slideDeck.children.length - 1; } else { slideIndex = i - 1; } } // current slide else if (par == 0) { slideIndex = i; } // next slide else if (par == 1) { // if currently on last slide if (i == slideDeck.children.length - 1) { slideIndex = 0; } else { slideIndex = i + 1; } } return { el: slideDeck.children[slideIndex], index: slideIndex }; } } } // run a timeout loop to linear transgression setInterval(function() { // get slides var currentSlideElement = slideIndex(0).el; var previousSlideElement = slideIndex(-1).el; var nextSlideElement = slideIndex(1).el; currentSlideElement.setAttribute("data-active", "false"); nextSlideElement.setAttribute("data-active", "true"); console.log('ok'); }, 5500);
#slider-wrapper { float: left; width: 500px; border: thin dotted; /* overflow-x: hidden; */ height: 100px; } #slider-wrapper ul { list-style-type: none; margin: 0; padding: 0; width: 100%; height: inherit; /* For consistency */ position: relative; /* To contain each slide */ } #slider-wrapper ul li { list-style-type: none; margin: 0; width: 100%; height: 100%; /* Removed all float/margin related properties */ position: absolute; left: 0; top: 0; opacity: 0; /* Hide it visually */ pointer-events: none; /* Disable interactions */ transform: translateX(100%); /* Move it away!*/ transition: all 1s; /* Feel free to make this a concise list of properties */ } #slider-wrapper ul li[data-active='true'] { opacity: 1; /* Show it */ pointer-events: auto; /* Restore interactions */ transform: translateX(0); /* Put it back in the centre */ }
<div id="slider-wrapper"> <ul> <li data-active="true">Slide one</li> <li data-active="false">Slide two</li> <li data-active="false">Slide three</li> </ul> </div>
尝试将过渡放在所有li
中,而不只是活动的过渡中。