CSS3或jQuery动画与给定的步骤 [英] CSS3 or jQuery animation with given step

问题描述

我有一个CSS使淡出效果。

I have a CSS that makes fading out effect.

#mainframe.normal
{
    opacity: 1.0;
}
#mainframe.faded
{
    opacity: 0.0;
}
#mainframe
{
  /* Firefox */
  -moz-transition-property: opacity;
  -moz-transition-duration: 3s;
  /* WebKit */
  -webkit-transition-property: opacity;
  -webkit-transition-duration: 3s;
  /* Standard */
  transition-property: opacity;
  transition-duration: 3s;
}

它由以下脚本控制：

document.getElementById('mainframe').className = "faded";

不幸的是，CSS中没有参数，设置应该使用哪个步骤，整个动画和Bezier函数（慢，快...）。我在jQuery中寻找它，但jQuery似乎没有这样的参数。

Unfortunately, there is no parameter in CSS, that sets what step should be used, only total time of the whole animation and Bezier function (slow, fast...). I was looking for it in jQuery, but jQuery seems to have no such parameter as well.

有一种方法设置单个帧超时（或者，

Is there a way to set a single frame timeout (or, that is the same, how many frames should be used)?

我需要它来尝试改善iPhone上的平滑度（我假设较小的步长==较高的性能）。

I need it to try to improve smoothness on iPhone (I presume that lesser steps == higher performance).

回答：

推荐答案

看起来您正在寻找css3关键帧动画。

Looks like you're looking for the functionality provided by css3 keyframe animations.

有关详情，请访问以下链接：

More information is available at the following links:

https://developer.mozilla.org/en/CSS/CSS_animations

https://developer.mozilla.org/en/CSS/@keyframes

在webkit浏览器（safari，chrome）和FF5 +中支持。

Supported in webkit browsers (safari, chrome) and FF5+.

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