New answers tagged tilecache
The level of details are set by the service and the sample is based on the service you referenced which has 10 levels of detail. Here is the Esri basemap service which supports 20 levels of detail > http://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer. With respect to the sample you referenced, you can update the items ArrayList ...
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