GoogleNavigation Framework Reference
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GMSIndoorDisplayDelegate
@protocol GMSIndoorDisplayDelegate <NSObject>
Delegate for events on GMSIndoorDisplay.
-
Raised when the activeBuilding has changed. The activeLevel will also have already been updated
for the new building, but -didChangeActiveLevel: will be raised after this method.
-
Raised when the activeLevel has changed. This event is raised for all changes, including
explicit setting of the property.
Declaration
Objective-C
- (void)didChangeActiveLevel:(nullable GMSIndoorLevel *)level;
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Last updated 2025-08-27 UTC.
[null,null,["Last updated 2025-08-27 UTC."],[[["\u003cp\u003e\u003ccode\u003eGMSIndoorDisplayDelegate\u003c/code\u003e handles events related to indoor maps, such as changes to the active building or level.\u003c/p\u003e\n"],["\u003cp\u003eThe delegate provides optional methods, \u003ccode\u003edidChangeActiveBuilding\u003c/code\u003e and \u003ccode\u003edidChangeActiveLevel\u003c/code\u003e, which are called when the active building or level is changed, respectively.\u003c/p\u003e\n"],["\u003cp\u003eWhen the active building changes, \u003ccode\u003edidChangeActiveBuilding\u003c/code\u003e is raised first, followed by \u003ccode\u003edidChangeActiveLevel\u003c/code\u003e to reflect the new building's active level.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003edidChangeActiveLevel\u003c/code\u003e is triggered for any changes to the active level, including explicit settings.\u003c/p\u003e\n"]]],[],null,["# GoogleNavigation Framework Reference\n\nGMSIndoorDisplayDelegate\n========================\n\n @protocol GMSIndoorDisplayDelegate \u003cNSObject\u003e\n\nDelegate for events on [GMSIndoorDisplay](../Classes/GMSIndoorDisplay.html).\n- `\n ``\n ``\n `\n\n ### [-didChangeActiveBuilding:](#/c:objc(pl)GMSIndoorDisplayDelegate(im)didChangeActiveBuilding:)\n\n `\n ` \n Raised when the activeBuilding has changed. The activeLevel will also have already been updated\n for the new building, but [-didChangeActiveLevel:](../Protocols/GMSIndoorDisplayDelegate.html#/c:objc(pl)GMSIndoorDisplayDelegate(im)didChangeActiveLevel:) will be raised after this method. \n\n #### Declaration\n\n Swift \n\n optional func didChangeActiveBuilding(_ building: ../Classes/GMSIndoorBuilding.html?)\n\n Objective-C \n\n - (void)didChangeActiveBuilding:(nullable ../Classes/GMSIndoorBuilding.html *)building;\n\n- `\n ``\n ``\n `\n\n ### [-didChangeActiveLevel:](#/c:objc(pl)GMSIndoorDisplayDelegate(im)didChangeActiveLevel:)\n\n `\n ` \n Raised when the activeLevel has changed. This event is raised for all changes, including\n explicit setting of the property. \n\n #### Declaration\n\n Swift \n\n optional func didChangeActiveLevel(_ level: ../Classes/GMSIndoorLevel.html?)\n\n Objective-C \n\n - (void)didChangeActiveLevel:(nullable ../Classes/GMSIndoorLevel.html *)level;"]]
