Offline Maps

  • MGLOfflineStorage implements a singleton (shared object) that manages offline packs. All of this class’s instance methods are asynchronous, reflecting the fact that offline resources are stored in a database. The shared object maintains a canonical collection of offline packs in its packs property.

    See the Download an offline map example to learn how to create and register an offline pack for a defined region.

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    Declaration

    Objective-C

    
@interface MGLOfflineStorage : NSObject

    Swift

    class MGLOfflineStorage : NSObject
    View Source on GitHub

  • An MGLOfflinePack represents a collection of resources necessary for viewing a region offline to a local database.

    To create an instance of MGLOfflinePack, use the +[MGLOfflineStorage addPackForRegion:withContext:completionHandler:] method. A pack created using -[MGLOfflinePack init] is immediately invalid.

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    Declaration

    Objective-C

    
@interface MGLOfflinePack : NSObject

    Swift

    class MGLOfflinePack : NSObject
    View Source on GitHub

  • A structure containing information about an offline pack’s current download progress.

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    Declaration

    Objective-C

    struct MGLOfflinePackProgress {}

    Swift

    struct MGLOfflinePackProgress
    View Source on GitHub

  • The state an offline pack is currently in.

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    Declaration

    Objective-C

    enum MGLOfflinePackState {}

    Swift

    enum MGLOfflinePackState : Int
    View Source on GitHub

  • An offline region defined by a style URL, geographic coordinate bounds, and range of zoom levels.

    To minimize the resources required by an irregularly shaped offline region, use the MGLShapeOfflineRegion class instead.

    See the Download an offline map example to learn how to define an offline region to be downloaded to a user’s device.

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    Declaration

    Objective-C

    
@interface MGLTilePyramidOfflineRegion
    : NSObject <MGLOfflineRegion, NSSecureCoding, NSCopying>

    Swift

    class MGLTilePyramidOfflineRegion : NSObject, MGLOfflineRegion, NSSecureCoding, NSCopying
    View Source on GitHub

  • An offline region defined by a style URL, geographic shape, and range of zoom levels.

    This class requires fewer resources than MGLTilePyramidOfflineRegion for irregularly shaped regions.

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    Declaration

    Objective-C

    
@interface MGLShapeOfflineRegion
    : NSObject <MGLOfflineRegion, NSSecureCoding, NSCopying>

    Swift

    class MGLShapeOfflineRegion : NSObject, MGLOfflineRegion, NSSecureCoding, NSCopying
    View Source on GitHub