Hi Nimesh, Thank you for your quick reply and I had already downloaded the ArcGIS app days ago. That is nearly the same as what I want, but not exactly. It can show the address, longitude and lattitude quite well but not for the buildings' names. Also, I had also studied some of the samples developed by iOSDevelopmentTeam before writing this thread. Yes, they are quite helpful. Instead of the Feature Layer Editing Sample, I think the Geocoding Sample is more likely to be what I want to do. Yet, this sample only allows me to search for a certain place and does not allow the user to tap on a building to show the required information. May be this is caused by the map source, so I have changed the map service URL to World_Street_Map. This does not work however and I cannot figure out what has gone wrong. Regards, Kyrion
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