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iOS Components and Frameworks: Understanding the Advanced Features of the iOS SDK by Joe Keeley, Kyle Richter

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Getting Directions

As of iOS 6, the standard Maps.app was enhanced to provide turn-by-turn navigation in addition to directions. Maps.app was also enhanced to allow other apps to open it with specific instructions on what to display. Apps can request that Maps.app display an array of map items, provide directions between two locations, or provide directions from the current location. Maps.app can be configured with a center point and span, and a type of map (standard, satellite, or hybrid). As of iOS 7, MapKit offers a directions request, which can provide directions to be used directly in an app. The directions request can return an array of polylines representing route options, with accompanying route steps that can be presented in a table ...

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