浏览器宽度更改时运行脚本

时间:2015-08-13 15:21:18

标签: jquery responsive-design

我有一个1页的网站,当点击导航按钮时,它会滚动到所选的div。

在宽度为1006px或更高的浏览器上,标题将显示高度:60px;它固定在顶部。

我有以下脚本,在浏览器宽度超过1006px时工作得很好但是在移动版本上,我在顶部有60px的差距。

这是我需要编辑的行

var offsetHeader = 60;

var divPos = $(theID).offset().top-60;

正如您所注意到的,我有60套这是div的高度,我可以将其更改为0,这将在移动版本上完美运行,我需要编辑它以便在浏览器时# 39; s宽度变化然后这将变为60或0。

这里是完整的jQuery

jQuery(document).ready(function($) {
        var offsetHeader = 60; //Add the height of the header if needed, also change line 31

        $('.scroll').click(function(){
            var $target = $($(this).attr('href'));
            $(this).parent().addClass('active');
            $('body').stop().scrollTo( $target , 800, {'axis':'y', offset: -offsetHeader});
            return false;
        });

        /**
        * This part handles the highlighting functionality.
        * We use the scroll functionality again, some array creation and
        * manipulation, class adding and class removing, and conditional testing
        */
        var aChildren = $("nav ul li").children(); // find the a children of the list items
        var aArray = []; // create the empty aArray
        for (var i=0; i < aChildren.length; i++) {
            var aChild = aChildren[i];
            var ahref = $(aChild).attr('href');
            aArray.push(ahref);
        } // this for loop fills the aArray with attribute href values

        $(window).scroll(function(){
            var windowPos = $(window).scrollTop(); // get the offset of the window from the top of page
            var windowHeight = $(window).height(); // get the height of the window
            var docHeight = $(document).height();

            for (var i=0; i < aArray.length; i++) {
                var theID = aArray[i];
                var divPos = $(theID).offset().top-60; // match the number with the offsetHeader
                var divHeight = $(theID).height(); // get the height of the div in question
                if (windowPos >= divPos && windowPos < (divPos + divHeight)) {
                    $("a[href='" + theID + "']").addClass("active");
                } else {
                    $("a[href='" + theID + "']").removeClass("active");
                }
            }

            if(windowPos + windowHeight == docHeight) {
                if (!$("nav li:last-child a").hasClass("nav-active")) {
                    var navActiveCurrent = $(".nav-active").attr("href");
                    $("a[href='" + navActiveCurrent + "']").removeClass("nav-active");
                    $("nav li:last-child a").addClass("nav-active");
                }
            }
        });
    });

我正在考虑类似下面的代码,但不确定如何使用脚本实现它?

function updateContainer() {
    var $containerWidth = $(window).width();
    if ($containerWidth > 1006) {
        var divPos = $(theID).offset().top-60;
        var offsetHeader = 60;
    } else { 
        var divPos = $(theID).offset().top-0;
        var offsetHeader = 0;
    }
}

2 个答案:

答案 0 :(得分:1)

我真的不明白目标,但也许这会有所帮助:

var cWidth;

$(window).resize(function() {
    cWidth = $(window).width();
    if (cWidth > 1006) {
        var divPos = $(theID).offset().top-60;
        var offsetHeader = 60;
    } else { 
        var divPos = $(theID).offset().top-0;
        var offsetHeader = 0;
    }
}

答案 1 :(得分:0)

使用窗口的resize事件

$(window).resize(updateContainer).resize();

通过在声明处理程序后触发事件,它也将在页面加载时触发

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