上一篇介绍了在GMap上添加自定义标签(GMapMarker),这篇介绍在GMap上添加多边形(GMapPolyogn),并且介绍如何在地图上画任意的多边形. 如果已经知道了多边形的各个点的位置,就可以通过如下方式在地图上添加多边形: GMapOverlay polyOverlay = new GMapOverlay("polygons"); List points = new List(); points.Add(new PointLatLng(-25.969562,32.58578
本文实例讲述了Android编程之canvas绘制各种图形的方法.分享给大家供大家参考,具体如下: 1.首先说一下canvas类: Class Overview The Canvas class holds the "draw" calls. To draw something, you need 4 basic components: A Bitmap to hold the pixels, a Canvas to host the draw calls (writing into