how to use kmlviewer to implement kml with ground image overlay?

hi im completely new to objective-c and xcode , ive tried a few kml files with the kmlviewer samplecode that is in the apple developer website it all works but when i try one kml sample file with an ground overlay an image overlay on the google map it doesnt work , is the kmlviewer suppose to work with every kml file or for certain kml files only ? where 开发者_StackOverflow中文版can i find a tutorial to implement a ground image overlay kml file in xcode any help will be really appreciated Thanks in advance

Please refer to my answer in Getting xml data in DetailView from a map view (Iphone IOS). I did som research on the sample app for the question and the XML parser in the example app does not parse alot.

If you want a ground overlay you'll have to improve the KMLParser first and then start the drawing.