HERE iOS SDK Developer's Guide

Coverage

To display the street-level imagery coverage area on a map, the streetLevelCoverageVisible property from the NMAMapView class can be used as shown in the code snippet below. The area where the imagery is available is highlighted in light blue on the map.

// Assume that the NMAMapView is instantiated
mapView.streetLevelCoverageVisible = YES;
Figure 1. Map of San Francisco

Coverage at a Specific Location

You can also check whether a specific location has street-level imagery coverage by using the following asynchronous method in NMAStreetLevelView:
checkCoverageAtGeoCoordinates:withRadius:completion: