Day 13: Google Maps Android API V2 Part 3Presentation Transcript
Android Application Development Google Maps API V2 Part 3 ● Add Markers ● Drawing Shapes (Lines, Polygons & Circles) Ahsanul Karim firstname.lastname@example.org http://droidtraining.wordpress.com
Google Maps API V2 Markers 1. Markers identify locations on the map.2. Markers use a standard icon.3. Its possible to change the icons color,image or anchor point via the API.4. Markers are objects of type Marker, andare added to the map with the GoogleMap.addMarker(markerOptions) method.5. Markers are designed to be interactive.Markers receive click events, for example,and are often used within event listeners tobring up info windows.
Google Maps API V2 Markers Add a Marker:
Google Maps API V2 Markers  Customize a Marker:Position (Required): The LatLng value for the markers position on the map. Thisis the only required property for a Marker object.Title: A string thats displayed in the info window when the user taps the marker.Snippet: Additional text thats displayed below the title.Draggable: Set to true if you want to allow the user to move the marker. Defaultsto false.Visible: Set to false to make the marker invisible. Defaults to true.Anchor: The point on the image that will be placed at the LatLng position of themarker. This defaults to the middle of the bottom of the image.Icon: A bitmap thats displayed in place of the default marker image. You cantchange the icon once youve created the marker.
Google Maps API V2 Markers Customize a Marker: Changing default Icon 1. fromAsset(String assetName) 2. fromBitmap (Bitmap image) 3. fromFile (String path) 4. fromResource (int resourceId)
Google Maps API V2 Markers  Event HandlingThe following events can be listened to:1. Marker click events2. Marker drag events3. Info window click events
Google Maps API V2 Shapes The Google Maps API for Android offers some simple ways for us to add shapes to our maps in order to customize them for your application.● A Polyline is a series of connected line segments that can form any shape you want and can be used to mark paths and routes on the map.● A Polygon is an enclosed shape that can be used to mark areas on the map.● A Circle is a geographically accurate projection of a circle on the Earths surface drawn on the map.
Google Maps API V2 Polylines
Google Maps API V2 PolygonsCircles can also be added similarly
Google Maps API V2 Customizing AppearancesProperties: 1. Stroke COlor 2. Fill Color 3. Stroke Width 4. Geodesic Segments 5. Z-index 6. Visibility