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How Can I Accurately Calculate Content Height in jQuery Mobile to Fill the Space Between Header and Footer?
How Can I Accurately Calculate Content Height in jQuery Mobile to Fill the Space Between Header and Footer?
Dec 27, 2024 am 10:30 AM
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 <= 1.2
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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