jQuery在循环中交叉淡化两个图像！ [英] jQuery cross fading two images on a loop!

问题描述

我无法弄清楚如何在淡出循环中使用简单的淡入淡出功能。你可以告诉我，我对jQuery很新。我已经开始了，但是现在花了太长时间才算完，所以我想我会请求一些帮助。

I am having trouble working out how to get a simple fade in fade out loop to work. I am pretty new to jQuery as you can maybe tell. I have had a go at it but now it’s taking too long to work out so I thought I would ask for some help.

我想做什么：

我有两张图片，ID是＃img1和＃img2。我想图像1淡入然后等待让我们说6秒然后淡出。我已经尝试了.wait函数，但它只是停止了我工作的那一点。我设法让第一张图像淡入淡出，然后却没有等待。然后我想开始淡入图像2而图像1淡出然后图像2等待然后淡出而图像1再次淡入并永远循环！希望这是有道理的。

I have two Images, id's #img1 and #img2. I want image 1 to fadeIn then wait for lets say 6 seconds then fade out. I have tried the .wait function but it just stopped the little I had from working. I managed to get the first image to fade in and then out but with no wait in between. I then want to start fading image 2 in while image 1 is fading out then Image 2 to wait then fade out while image 1 fades in again and loop forever! Hope that makes sense.

 $(document).ready(function(){
  $('#img1').hide()
.load(function () {
  $(this).fadeIn(4500)
  .fadeOut(4500);
  $('#img2').hide().wait(9000)
  .load(function () {
  $(this).fadeIn(4500)
  .fadeOut(4500);
});

干杯，它让我发疯.Ps你可以尝试对发生的事情做一点解释在你回答。谢谢

Cheers, its driving me crazy. Ps can you try and give a little explanation to what is going on in you answer. Thanks

推荐答案

编辑2年以上：有更好的方法来做到这一点......所以忽略这个答案。

我会尝试回调和setTimeout的组合。（我要去建立在Kobi的回复上，因为他在我打字时发布了。）

I would try a combination of callbacks and setTimeout. (I'm going to build on Kobi's response, since he posted while I was typing.)

在CSS中，给两个图像一个display：none;而不是将它们设置为隐藏在从jQuery开始。然后在jQuery中：

In CSS, give both images a "display: none;" instead of setting them to hidden at the beginning in jQuery. Then in jQuery:

function imageOneFade(){
  $('#img1').fadeIn(2000, function(){ setTimeout("$('#img1').fadeOut(2000); imageTwoFade();",6000); });
}

function imageTwoFade(){
  $('#img2').fadeIn(2000, function(){ setTimeout("$('#img2').fadeOut(2000); imageOneFade();",6000); });
}

$(document).ready(function(){
   imageOneFade();
});

希望有类似的东西你工作了。

Hopefully something like that you work.

setTimeout函数有两个参数。

The setTimeout function takes two parameters.

setTimeout(WHAT WILL HAPPEN, HOW LONG TO WAIT)

并且fadeIn / Out函数可以有第二个参数效果结束时会触发。

And the fadeIn/Out functions can have a second parameter that will trigger when the effect is finished.

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