arcgis android 图上记录gps轨迹

原文  arcgis android 图上记录gps轨迹

public class MainActivity extends Activity {

    MapView mMapView;

    LocationDisplayManager lDisplayManager = null;

    GraphicsLayer gpsGraphicsLayer;

    Polyline mPolyline;

    int pointCount = 0;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        // after the content of this activity is set

        // the map can be accessed from the layout

        mMapView = (MapView) findViewById(R.id.map);

        ArcGISTiledMapServiceLayer tile = new ArcGISTiledMapServiceLayer("http://map.geoq.cn/ArcGIS/rest/services/ChinaOnlineCommunity_Mobile/MapServer");

        mMapView.addLayer(tile);

        gpsGraphicsLayer = new GraphicsLayer();

        mMapView.addLayer(gpsGraphicsLayer);

        mPolyline = new Polyline();

        mMapView.setOnStatusChangedListener(new OnStatusChangedListener() {

            @Override

            public void onStatusChanged(Object source, STATUS status) {

                if (source == mMapView && status == STATUS.INITIALIZED) {

                    lDisplayManager = mMapView.getLocationDisplayManager();//获取LocationDisplayManager

                    lDisplayManager.setAutoPanMode(LocationDisplayManager.AutoPanMode.OFF);

                    lDisplayManager.setShowLocation(false);//不显示当前位置，坐标系不一致坐标偏移严重

                    lDisplayManager.setShowPings(false);

                    lDisplayManager.setAccuracyCircleOn(false);

                    lDisplayManager.setAllowNetworkLocation(true);

                    lDisplayManager.setLocationListener(new LocationListener() {

                        @Override

                        public void onLocationChanged(Location loc) {

                            //火星坐标转换

                            double[] gcj = CoordinateConvert.wgs2GCJ(loc.getLatitude(), loc.getLongitude());

                            Point wgspoint = new Point(gcj[1], gcj[0]);

                            Point p = (Point) GeometryEngine.project(wgspoint,

                                    SpatialReference.create(SpatialReference.WKID_WGS84),

                                    mMapView.getSpatialReference());

                            SimpleMarkerSymbol ptSym = new SimpleMarkerSymbol(Color.BLUE, 15,

                                    SimpleMarkerSymbol.STYLE.CIRCLE);

                            Graphic graphic = new Graphic(p, ptSym, null);

                            if (pointCount == 0) {

                                mPolyline.startPath(p.getX(), p.getY());

                                mMapView.zoomTo(p, 17);

                            } else {

                                mPolyline.lineTo(p.getX(), p.getY());//点画线

                                mMapView.centerAt(p, true);

                            }

                            gpsGraphicsLayer.removeAll();

                            SimpleLineSymbol lineSym = new SimpleLineSymbol(Color.RED, 10);

                            Graphic g = new Graphic(mPolyline, lineSym);

                            gpsGraphicsLayer.addGraphic(g);

                            pointCount++;

                            gpsGraphicsLayer.addGraphic(graphic);

                        }

                        @Override

                        public void onProviderDisabled(String arg0) {

                        }

                        @Override

                        public void onProviderEnabled(String arg0) {

                        }

                        @Override

                        public void onStatusChanged(String arg0, int arg1,

                                                    Bundle arg2) {

                        }

                    });  // Actionlistener

                    lDisplayManager.start();

                }

            }

        });

    }

}