Android สอบถามการดึงพิกัดจาก SQLite มาปักหมุดบน Google Map

public SitesOverlay(Drawable marker) {
			super(marker);
			this.marker=marker;
			
			items.add(new OverlayItem(getPoint
					(40.748963847316034,-73.96807193756104),
						"UN", "United Nations"));
			items.add(new OverlayItem(getPoint
					(40.76866299974387,-73.98268461227417),
						"Lincoln Center",
						"Home of Jazz at Lincoln Center"));
			items.add(new OverlayItem(getPoint
					(40.765136435316755,-73.97989511489868),
						"Carnegie Hall",
						"Where you go with practice, practice, practice"));
			items.add(new OverlayItem(getPoint
					(40.70686417491799,-74.01572942733765),
						"The Downtown Club",
						"Original home of the Heisman Trophy"));
			populate();
		}