控制淡入淡出的动画

Question

我有以下标记。

<ul id="ticker">
<li><q> Education, then, beyond all other devices of human origin, is the great equalizer of the conditions of men, the balance-wheel of the social machinery </q><cite>Horace Mann</cite></li>
<li><q> The roots of education are bitter, but the fruit is sweet </q><cite>Aristotle</cite></li>
<li><q> Education is what remains after one has forgotten everything he learned in school </q><cite>Albert Einstein</cite></li>
<li><q> Education is the most powerful weapon which you can use to change the world </q><cite>Nelson Mandela</cite></li>
<li><q> Formal education will make you a living; self-education will make you a fortune </q><cite>Jim Rohn</cite></li>
</ul>

和下面的脚本

<script>
function tick()
{
$('#ticker li:first').animate({'opacity':0}, 2000, function () { $(this).appendTo($('#ticker')).css('opacity', 1); });
}
setInterval(function(){ tick () }, 8000);
</script>

问题是，文本淡出得很好，但会在闪光中重新出现。任何方式，我可以使淡入也平滑。

Answer 1

我认为你想要的东西更像这样：

var $ticker = $('#ticker'); // save the static element
$ticker.children(':not(:first-child)').hide();

function tick(){
    $ticker.children(':first-child').fadeOut(1000, function () {
        $(this).appendTo($ticker);
        $ticker.children().first().fadeIn(1000);
    });
}
setInterval(tick, 8000);

http://jsfiddle.net/ffe6q/3/

一次显示一个项目，显示的项目淡出，然后下一个项目淡入。

Answer 2

而不是：

$(this).appendTo($('#ticker')).css('opacity', 1);

做一些类似的事情：

$(this).appendTo($('#ticker')).animate({'opacity' : 1}, 2000);

Answer 3

检查FIDDLE

function tick() {
    $('#ticker li:first').animate({
        'opacity': 0
    },2000, function() {
        $(this).appendTo($('#ticker')).animate({'opacity' : 1}, 2000);
    });
}
setInterval(function() {
    tick()
}, 8000);​