[OpenLayers-Users] OpenLayer & iPhone

Tue Jun 21 11:40:59 EDT 2011

Hi,

two things to do:

1) Don't use http://www.openlayers.org/api/OpenLayers.js - this is a full build (you need less than 10% of what it contains), hosted on a slow server.

2) Instead, build your custom OpenLayers.js with only what you need and host it on your server along with the app. See http://docs.openlayers.org/library/deploying.html for instructions.

Andreas.

On Jun 21, 2011, at 17:10 , Mohammed Malaka wrote:

> Hi All,
>  
> I am working on a .Net Mapping web application for Mobile that use OpenLayers.
>  
> I created the following simple page
>  
> <html><body>
>   <div id="demoMap"></div>
>   <script src="http://www.openlayers.org/api/OpenLayers.js"></script>
>   <script>
>       map = new OpenLayers.Map("demoMap");
>       map.addLayer(new OpenLayers.Layer.OSM());
>       map.zoomToMaxExtent();
>   </script>
> </body></html
>  
> This pages take about 10s to load on the iPhone 4.3.3 (using Safari browser) and about 3-4s to load on Andriod 2.3 HTC desire HD (using the default browser).
>  
> why it is slow on the iPhone?  
> Any advice on how to improve the performance?
>  
> I tried the 2.11 release and I get the same results.
>  
> Regards
>  
> Mohammed Malaka
> Sr. Applications Engineer, IMGS
> 8b Keypoint, Rosemount Business Park, Dublin 11
> t:   +353 1 885 3839  
> w:  www.imgs.ie        e:  mmalaka at imgs.ie
>  
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-- 
Andreas Hocevar
OpenGeo - http://opengeo.org/
Expert service straight from the developers.