我想一次只隐藏一个div
,以避免下面的闪烁(如图所示)
注意: 我不能使用visibility:hidden
或visibility:show
或$sel.css('visibility','hidden');
或 $sel.css('visibility','show');
我的期望:当我在DOM
中执行 $content.hide();
时,请参见我提供的图像中的html区域,其中每个元素
都发生了style="display:none"/style="display:block"
,我希望一次只隐藏那个特定的元素
,而不是多个元素同时显示/隐藏,类似于#snippet2,#snippet1应该可以工作(但隐藏的元素不应包含任何width/height
)
以下代码应该可以使用display:none or $el.hide()/$el.show()
:
#Snippet1
$(function() {
var pos = 1;
var ii = 0;
var centerbandTop = $('.center-band').offset().top;
var centerbandBottom = $('.center-band').outerHeight() + centerbandTop;
$('.contents').hide();
var intId = setInterval(function() {
ii++;
pos = -ii;
//console.log(pos);
//if (pos )
$('.contents').each(function() {
var $content = $(this);
var contentTop = $content.offset().top;
var contentBottom = $content.outerHeight() + contentTop;
$content.hide();
//console.log($content.position().top, centerbandTop, contentBottom);
if (centerbandBottom > contentTop && centerbandTop < contentBottom)
$content.show();
});
$('.container').css({
// '-webkit-transform' : 'translate(0,' + pos + ')',
transform: 'translateY(' + pos + 'px)'
});
}, 100);
});
.container{
width: 100%;
height: 100%;
background: #000000d6;
font-size: 19px;
color: #a19999;
position: relative;
}
.contents{
margin-bottom: 15px;
border-bottom: 1px solid #424242;
padding: 20px;
visibility: hidden;
}
.center-band{
width: 98%;
height: 78px;
z-index: 200;
background: #b4b1b147;
position: fixed;
top: 50%;
}
.wrapper{
position: relative;
}
.over{
background-color: red;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="wrapper">
<div class="container">
<div class="contents"> (1) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Necessitatibus fugit eius perferendis veritatis accusantium corporis nulla alias sed possimus quibusdam reiciendis nisi maiores inventore error, incidunt eveniet ut asperiores officiis.</div>
<div class="contents">(2) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Minima, distinctio temporibus facere, laboriosam doloribus error quaerat ipsa, non nobis rerum mollitia quibusdam quas illo a qui consequuntur consectetur deleniti saepe.</div>
<div class="contents">(3) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Unde, sed, atque. Adipisci quasi debitis, soluta praesentium distinctio impedit veritatis officia molestias culpa fuga excepturi voluptates suscipit aliquam ea unde, non!</div>
<div class="contents">(4) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Consequuntur, incidunt, harum. Perferendis ipsum, molestias nihil sequi nam nulla, aliquid ipsa numquam cum! Perferendis ut voluptates hic excepturi dolores, ipsum impedit.</div>
<div class="contents">(5) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Enim itaque debitis voluptates, reiciendis dolorum, labore eius. Illum similique ex, iusto rerum ratione minima, corporis aspernatur aliquam, itaque numquam sint enim!</div>
<div class="contents">(6) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Sint numquam totam, a aliquam veritatis porro ullam! Nostrum sint ipsum odio aperiam deserunt aut placeat dignissimos est ad, quae vitae aliquid.</div>
<div class="contents">(7) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Et quos atque enim, alias culpa quibusdam ratione, beatae non possimus, velit eaque. Optio qui saepe, earum harum beatae maxime obcaecati minima.</div>
<div class="contents">(8) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Hic id incidunt sapiente, magni, sequi ea molestiae iure maxime delectus doloribus error assumenda veritatis maiores saepe nihil neque autem similique obcaecati!</div>
<div class="contents">(9) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Voluptatum velit hic iure nam nulla natus corrupti eveniet, suscipit voluptates nostrum. Cupiditate vero ipsam alias fuga, magnam voluptas deserunt corporis non!</div>
<div class="contents">(10) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Repudiandae voluptatibus accusamus pariatur? Ipsum nobis ratione fuga, voluptates quam placeat officia odit eveniet aliquam, eaque quisquam tenetur! Exercitationem maxime vel quas!</div>
</div>
<div class="center-band"> </div>
</div>
$(function() {
var pos = 1;
var ii = 0;
var centerbandTop = $('.center-band').offset().top;
var centerbandBottom = $('.center-band').outerHeight() + centerbandTop;
var intId = setInterval(function() {
ii++;
pos = -ii;
//console.log(pos);
//if (pos )
$('.contents').each(function() {
var $content = $(this);
var contentTop = $content.offset().top;
var contentBottom = $content.outerHeight() + contentTop;
$content.css('visibility', 'hidden');
//console.log($content.position().top, centerbandTop, contentBottom);
if (centerbandBottom > contentTop && centerbandTop < contentBottom)
$content.css('visibility', 'visible');
});
$('.container').css({
// '-webkit-transform' : 'translate(0,' + pos + ')',
transform: 'translateY(' + pos + 'px)'
});
}, 100);
});
/* Styles go here */
.container{
width: 100%;
height: 100%;
background: #000000d6;
font-size: 19px;
color: #a19999;
position: relative;
}
.contents{
margin-bottom: 15px;
border-bottom: 1px solid #424242;
padding: 20px;
visibility: hidden;
}
.center-band{
width: 98%;
height: 78px;
z-index: 200;
background: #b4b1b147;
position: fixed;
top: 50%;
}
.wrapper{
position: relative;
}
.over{
background-color: red;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="wrapper">
<div class="container">
<div class="contents"> (1) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Necessitatibus fugit eius perferendis veritatis accusantium corporis nulla alias sed possimus quibusdam reiciendis nisi maiores inventore error, incidunt eveniet ut asperiores officiis.</div>
<div class="contents">(2) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Minima, distinctio temporibus facere, laboriosam doloribus error quaerat ipsa, non nobis rerum mollitia quibusdam quas illo a qui consequuntur consectetur deleniti saepe.</div>
<div class="contents">(3) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Unde, sed, atque. Adipisci quasi debitis, soluta praesentium distinctio impedit veritatis officia molestias culpa fuga excepturi voluptates suscipit aliquam ea unde, non!</div>
<div class="contents">(4) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Consequuntur, incidunt, harum. Perferendis ipsum, molestias nihil sequi nam nulla, aliquid ipsa numquam cum! Perferendis ut voluptates hic excepturi dolores, ipsum impedit.</div>
<div class="contents">(5) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Enim itaque debitis voluptates, reiciendis dolorum, labore eius. Illum similique ex, iusto rerum ratione minima, corporis aspernatur aliquam, itaque numquam sint enim!</div>
<div class="contents">(6) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Sint numquam totam, a aliquam veritatis porro ullam! Nostrum sint ipsum odio aperiam deserunt aut placeat dignissimos est ad, quae vitae aliquid.</div>
<div class="contents">(7) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Et quos atque enim, alias culpa quibusdam ratione, beatae non possimus, velit eaque. Optio qui saepe, earum harum beatae maxime obcaecati minima.</div>
<div class="contents">(8) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Hic id incidunt sapiente, magni, sequi ea molestiae iure maxime delectus doloribus error assumenda veritatis maiores saepe nihil neque autem similique obcaecati!</div>
<div class="contents">(9) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Voluptatum velit hic iure nam nulla natus corrupti eveniet, suscipit voluptates nostrum. Cupiditate vero ipsam alias fuga, magnam voluptas deserunt corporis non!</div>
<div class="contents">(10) Lorem ipsum dolor sit amet, consectetur adipisicing elit. Repudiandae voluptatibus accusamus pariatur? Ipsum nobis ratione fuga, voluptates quam placeat officia odit eveniet aliquam, eaque quisquam tenetur! Exercitationem maxime vel quas!</div>
</div>
<div class="center-band"> </div>
</div>
请帮助我,提前感谢!
if (centerbandBottom > contentTop && centerbandTop < contentBottom)
之前加上console.log(contentTop, contentBottom)
,你会注意到当使用$content.hide()
时,contentTop
和contentBottom
的值是相对固定的(永远不会改变)。因此,它们要么保持隐藏,要么在隐藏和显示之间永久切换(这会导致闪烁)。 - IronGeek