影响不同元素链接jQuery的动画 [英] Chaining jQuery animations that affect different elements

问题描述

$(document).ready(function() {
    $("#div1").fadeIn("slow");
    $("#div2").delay(500).fadeIn("slow");
    $("#div3").delay(2000).fadeIn("slow");
    $("#div4").delay(8000).fadeIn("slow");
});

这是我目前的设置，但我觉得这是不是写这个的最佳方式。我找不到你会怎么写时序这更好的例子。任何帮助吗？我想AP preciate它。

This is my current setup but I feel like this isn't the best way to write this. I can't find any examples on how you would write this better for timing. Any help? I'd appreciate it.

我还应当补充一点，每个元件的定时不一致。

I should also add that the timing of each element isn't consistent.

推荐答案

淡入需要一个回调函数作为其第二个参数。这种回调一旦动画完成执行。如果你想要的元素在相继消失，你可以链中的回调：

fadeIn takes a callback as its second parameter. That callback is executed as soon as the animation is complete. If you want the elements to fade in sequentially, you could chain the callbacks:

$(document).ready(function() {
    $("#div1").fadeIn("slow", function(){
        $("#div2").fadeIn("slow", function(){
            $("#div3").fadeIn("slow", function(){
                $("#div4").fadeIn("slow");
            });
        });
    });
});

这可以使用选择器的阵列和一个单一的方法重新编写的，如果你觉得喜欢它：

This could be re-written using an array of selectors and a single method, if you felt like it:

var chain = function(toAnimate, ix){
    if(toAnimate[ix]){
        $(toAnimate[ix]).fadeIn('slow', function(){ chain(toAnimate, ix + 1 )});
    }
};

$(document).ready(function(){
    chain(['#div1', '#div2', '#div3', '#div4'], 0);
});

参见JSBin 这最后一个行动。

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