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POOpenLayers click event on iPhone with PhoneGap
 

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    <p>I have a problem with the click event on an OpenLayers Map on iPhone 4 using PhoneGap. It appears that the Position received by my setMarker(evt) function is dependent from the scroll position. After taking a closer look at the values for x and y I found out that y can even be negative. The same code is working on Android, with setMarker receiving plausible values for both x and y.</p> <p>Here is a short example where this problem occurs:</p> <pre><code>&lt;!DOCTYPE html&gt; &lt;html&gt; &lt;head&gt; &lt;title&gt;&lt;/title&gt; &lt;meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no;" /&gt; &lt;meta charset="utf-8"&gt; &lt;style&gt; html, body { height:99%; width:99%; } &lt;/style&gt; &lt;script type="text/javascript" charset="utf-8" src="phonegap-1.4.1.js"&gt;&lt;/script&gt; &lt;script type="text/javascript" charset="utf-8" src="OpenLayers.js"&gt;&lt;/script&gt; &lt;script type="text/javascript"&gt; var map, layer, markers; function setMarker(e){ markers.clearMarkers(); var markerpos = map.getLonLatFromViewPortPx(e.xy); var size = new window.OpenLayers.Size(21,25); var offset = new window.OpenLayers.Pixel(-(size.w/2), -size.h); var icon = new window.OpenLayers.Icon('http://www.openlayers.org/dev/img/marker.png',size,offset); var marker = new window.OpenLayers.Marker(markerpos,icon); markers.addMarker(marker); } function onDeviceReady() { map = new window.OpenLayers.Map("map", { controls: [new window.OpenLayers.Control.Navigation()]}); layer = new window.OpenLayers.Layer.OSM("Simple OSM Map"); map.addLayer(layer); map.setCenter( new window.OpenLayers.LonLat(10,50).transform( new window.OpenLayers.Projection("EPSG:4326"), // From WGS 84 map.getProjectionObject() // to Spherical Mercator ), 18 //Zoom ); var touchNav = new window.OpenLayers.Control.TouchNavigation({ defaultClickOptions:{ pixelTolerance: 10 } }); // A click will set the marker: window.OpenLayers.Util.extend(touchNav, { defaultClick: function(evt) { alert("you clicked " + evt.xy); setMarker(evt); } }); map.addControl(touchNav); touchNav.activate(); markers = new window.OpenLayers.Layer.Markers("Markers"); map.addLayer(markers); console.log("map generated"); } &lt;/script&gt; &lt;/head&gt; &lt;body onload="document.addEventListener('deviceready', onDeviceReady, false);"&gt; &lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt; &lt;div id="map" style="width:100%;height:100%"&gt;&lt;/div&gt; &lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>A similar problem is here, but as I am already using OpenLayers 2.11 his solution does not help me: <a href="https://stackoverflow.com/questions/8667464/problems-with-zooming-and-mouse-events-in-openlayers">Problems with zooming and mouse events in Openlayers</a></p>
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