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  1. PO
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    <p>Hmm, I modified it a little but your code looks good to me. Here is a live example of what I have: </p> <ul> <li><a href="http://jsfiddle.net/phillpafford/gkPAG/22/" rel="nofollow">http://jsfiddle.net/phillpafford/gkPAG/22/</a></li> <li><a href="http://jsfiddle.net/phillpafford/gkPAG/28/" rel="nofollow">http://jsfiddle.net/phillpafford/gkPAG/28/</a> &lt;-- Display elements heights after adjustments</li> </ul> <p>JS:</p> <pre><code>$('#pWhereAmI').live('pageshow',function(event, ui) { canvasHeight = $('#map_canvas').height(); // initialize the canvas height pageFreeHeight = pageFreeHeight_calc('#pWhereAmI'); map_canvasHeight = canvasHeight + pageFreeHeight; $('#map_canvas').height(map_canvasHeight).page(); }); function pageFreeHeight_calc(pageSelector) { var pageHeight = null; var headerHeight = 0;; var contentHeight = 0; var footerHeight = 0; if($(pageSelector).height != null) { pageHeight = $(pageSelector).height(); } if($(pageSelector+' [data-role|="header"]').outerHeight(true) != null) { headerHeight = $(pageSelector+' [data-role|="header"]').outerHeight(true); } if($(pageSelector+' [data-role|="content"]').outerHeight(true) != null) { contentHeight = $(pageSelector+' [data-role|="content"]').outerHeight(true); } if($(pageSelector+' [data-role|="footer"]').outerHeight(true) != null) { footerHeight = $(pageSelector+' [data-role|="footer"]').outerHeight(true); } alert( 'pageHeight: ' + pageHeight + "\n" + 'headerHeight: ' + headerHeight + "\n" + 'contentHeight: ' + contentHeight + "\n" + 'footerHeight: ' + footerHeight + "\n" + 'returnValue: ' + (pageHeight - headerHeight - contentHeight - footerHeight) ); return pageHeight - headerHeight - contentHeight - footerHeight; } </code></pre> <p>HTML:</p> <pre><code>&lt;div data-role="page" id="home"&gt; &lt;div data-role="content"&gt; &lt;ul data-role="listview" data-inset="true" data-theme="c" data-dividertheme="f"&gt; &lt;li data-role="list-divider"&gt;Navigation&lt;/li&gt; &lt;li&gt;&lt;a href="#pWhereAmI"&gt;Where am I&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;/div&gt; &lt;/div&gt; &lt;div data-role="page" id="pWhereAmI"&gt; &lt;div data-role="header" data-id="mainHeader" data-position="fixed"&gt; &lt;h1&gt;Where Am I ?&lt;/h1&gt; &lt;/div&gt; &lt;div data-role="content" class="map-content"&gt; &lt;ul data-role="listview" data-inset="true" data-theme="c" data-dividertheme="f"&gt; &lt;li data-role="list-divider"&gt;Navigation&lt;/li&gt; &lt;li&gt;&lt;a href="#home"&gt;Home&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;br /&gt; &lt;ul data-role="listview" data-inset="true"&gt; &lt;li&gt;Position Unknown&lt;/li&gt; &lt;li id="map_canvas"&gt;&lt;/li&gt; &lt;li&gt;Center the map&lt;/li&gt; &lt;/ul&gt; &lt;/div&gt; &lt;div data-role="footer" class="nav-glyphish-example" data-id="mainFooter" data-position="fixed"&gt; &lt;div data-role="navbar" class="nav-glyphish-example" data-grid="d"&gt; &lt;ul&gt; &lt;li&gt;&lt;a href="#pLogin" id="home" data-transition="fade" data-icon="custom"&gt;&lt;small&gt;Login&lt;/small&gt;&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt;&lt;!-- /page pWhereAmI --&gt; </code></pre>
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    1. POHow to receive an event at the END of a page transition with jquery mobile
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    1. USPhill Pafford
    1. USPhill Pafford
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    1. COHi Phil, I looked at your changes in code and did not really see anything that would explain why in your modified code the footer height is properly returned, but I did notice that the reported page height is not returned properly the first time I navigate to the WhereAmI page. The second time though it is, allowing a proper calc of the space available.This still point at the showpage event being fired too early. What is the .page() for, did not find it in the docs. +1 for getting me a step nearer to the solution. Thanks.
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    2. CO.page() refreshes the jQM markup/controls for dynamic content. You could also try the new create trigger like this: .trigger('create')
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    3. COI think it's displaying the correct value for that time in the process. It's the order of operations. First you "pageFreeHeight = pageFreeHeight_calc('#pWhereAmI');" this alerts/displays the heights but then you adjust the canvas size "map_canvasHeight = canvasHeight + pageFreeHeight;" this changes the pageHeight after we have already displayed the alert. I added another alert after the canvas resize to show that it's the correct size
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