How Can I Accurately Calculate Content Height in jQuery Mobile to Fill the Space Between Header and Footer?

Enhancing Content Height Calculation for Web Pages with jQuery Mobile

To effectively fill the space between the header and footer in a jQuery Mobile web page, an accurate calculation of the content's height is crucial. To achieve this, it is necessary to consider the impact of fixed toolbars, which may leave a slight gap.

Solution for jQuery Mobile >= 1.3

var screen = $.mobile.getScreenHeight();

var header = $(".ui-header").hasClass("ui-header-fixed") ? $(".ui-header").outerHeight()  - 1 : $(".ui-header").outerHeight();

var footer = $(".ui-footer").hasClass("ui-footer-fixed") ? $(".ui-footer").outerHeight() - 1 : $(".ui-footer").outerHeight();

/* content div has padding of 1em = 16px (32px top+bottom). This step
   can be skipped by subtracting 32px from content var directly. */
var contentCurrent = $(".ui-content").outerHeight() - $(".ui-content").height();

var content = screen - header - footer - contentCurrent;

$(".ui-content").height(content);

Solution for jQuery Mobile

Since fixed toolbars in versions 1.2 and below do not introduce a 1px margin, the calculation is simplified:

var header = $(".ui-header").outerHeight();

var footer = $(".ui-footer").outerHeight();

Full Resolution

To account for the padding around the content div, either adjust the content variable directly or subtract the padding value (32px) from the contentCurrent variable. Additionally, if fixed toolbars are present, remove 1px from their outerHeight() measurement.

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