原生的javascript图片瀑布流实现，具体代码如下：

(function($){

$.fn.niceWall = function(options){

$.fn.niceWall.defaults = {

"wrap":"body",

"width":200,

"gap":10,

"url":"",

"count":null,

"callback":null

};

var opts = $.extend({},$.fn.niceWall.defaults ,options || {});

//

return this.each(function(){

var $this = $(this);

var colspanW = opts.width + opts.gap;

var arrX = [];

var arrY = [];

var iPage = 0;

var iBtn = true;

var colspan = Math.floor($(opts.wrap).innerWidth() / colspanW);

//

function setLayer(){

colspan = Math.floor($(window).innerWidth() / colspanW);

$this.css("width",colspanW * colspan - opts.gap);

for(var i = 0; i < colspan;i++){

arrX[i] = colspanW * i;

arrY[i] = 0;

}

};

setLayer();

//

function render(){

if(!iBtn) return;

iPage++;

iBtn = false;

$.getJSON(opts.url,{page:iPage},function(data){

$.each(data,function(index,element){

console.log(element)

var oDiv = $("<div class='nice-wall'><p></p></div>");

var oImg = $("<img>");

var iH = (element.height / element.width)* opts.width;

oDiv.css({

"position":"absolute",

"width":opts.width + "px",

"height":iH + "px"

});

var _index = getMin();

oDiv.css({

"left":arrX[_index] + "px",

"top":arrY[_index] + "px"

});

arrY[_index] += iH + opts.gap;

//

oDiv.append(oImg);

$this.append(oDiv);

var hookImg = new Image();

hookImg.src = element.preview;

hookImg.onload = function(){

oImg.attr({

"src":this.src,

"href":element.image

});

};

//

iBtn = true;

});

//

if(opts.callback){

opts.callback();

}

});

};

render();

//

function getMin(){

var v = arrY[0];

var _index = 0;

for(var i = 1;i < arrY.length;i++){

if(arrY[i] < v){

v = arrY[i];

_index = i;

}

}

return _index;

};

//

$(window).off("scroll",srcollFn).on("scroll",srcollFn);

//

function srcollFn(){

var stp = $(window).scrollTop() + $(window).innerHeight();

var dH = $(document).height();

var _index = getMin();

if(arrY[_index] + 50 < stp ){

render();

}

};

//

$(window).on("resize",function(){

arrX = [];

arrY = [];

setLayer();

//

$this.find(".nice-wall").each(function(){

var _index = getMin();

$(this).animate({

"left":arrX[_index] + "px",

"top":arrY[_index] + "px"

},400);

arrY[_index] += $(this).height() + opts.gap;

});

});

});

}

})(jQuery);

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