google-maps-sdk-ios-drag-drop

A way to implement the drag & drop functionality in the new Google Maps SDK for iOS.

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Please note:

Before you can compile the project you have to create a new file called GMPrivateMapsKey.m and add it to the project. This file has to contain your API Key for the Google Maps SDK.

#import "GMPrivateMapsKey.h"

NSString *const kPrivateMapsAPIKey = @"<YOUR API KEY>";

The way to receive a key is descriped at: https://developers.google.com/maps/documentation/ios/start

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GMViewController creates an instance of GMDraggableMarkerManager and sets itself as the delegate in order to be notified of drag events.

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A long press on the marker enables you to drag it around and set it to another position.

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1. To initialize the drag & drop functionality you have to do import the GMDraggableMarkerManager.h in your UIViewController displaying the map:

   #import "GMDraggableMarkerManager.h"

2. Create a property for the GMDraggableMarkerManager:

   @property (strong, nonatomic, readwrite) GMDraggableMarkerManager *draggableMarkerManager;

3. After the initialization of the Google Maps View you have to initialize the draggableMarkerManager: self.draggableMarkerManager = [[GMDraggableMarkerManager alloc] initWithMapView:self.googleMapsView delegate:self];

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To receive callbacks when the marker was dragged, the dragging startet/ended or just when there was a long press on a coordinate you have to conform the GMDraggableMarkerManagerDelegate protocol.

At the moment the following optional methods are available:

1. - (void)mapView:(GMSMapView *)mapView didBeginDraggingMarker:(GMSMarker *)marker;

2. - (void)mapView:(GMSMapView *)mapView didEndDraggingMarker:(GMSMarker *)marker;

3. - (void)mapView:(GMSMapView *)mapView didDragMarker:(GMSMarker *)marker;

4. - (void)mapView:(GMSMapView *)mapView didLongPressAtCoordinate:(CLLocationCoordinate2D)coordinate;

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If you have further questions or notes please feel free to contact:
robert.weindl@blackstack.net or stephen@crookneckconsulting.com

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