public class MyTouchListener extends MapOnTouchListener {MultiPath polyline,polygon,line,freepolygon;DrawType type = DrawType.None;Point startPoint = null;MapView map = null;DrawWidget drawwidget =null;private View calloutView =null;int graphicFreelineId = 0;int graphicLineId = 0;int graphicFreePloygonId = 0;int graphicPloygonId = 0;public MyTouchListener(Context context, MapView view,DrawWidget  d,View v) {  super(context, view);  map = view;drawwidget=d;calloutView = v;}public void setType(DrawType type) {this.type = type;}public DrawType getType() {return this.type;}@Overridepublic boolean onSingleTap(MotionEvent e) {if(type == DrawType.Point) {Geometry geo = map.toMapPoint(new Point(e.getX(), e.getY()));Graphic gra = addGeometryToLocalDB(geo);            if(gra!=null){GraUID =mGraphicsLayer.addGraphic(gra);//添加要素至数据库//弹出callout窗口Point coordinate=(Point) geo;drawwidget.showCallout(coordinate, calloutView);        mMyTouchListener.setType(DrawType.None);}         return true;}else if(type == DrawType.Line){//获取屏幕点击坐标点Point point = map.toMapPoint(new Point(e.getX(), e.getY()));              if (startPoint == null) {                    startPoint = point;        line = new Polyline();line.startPath(point);        //添加节点信息Graphic graphic = new Graphic(point,new SimpleMarkerSymbol(Color.BLACK,5,STYLE.CIRCLE));tmpLayer.addGraphic(graphic);//添加线要素             Graphic graphic_line = new Graphic(line,FeatureSymbol.lineSymbol_new);graphicLineId = mGraphicsLayer.addGraphic(graphic_line);    } else{                    //添加线要素节点Graphic graphic_t = new Graphic(point,new SimpleMarkerSymbol(Color.BLACK,5,STYLE.CIRCLE));tmpLayer.addGraphic(graphic_t);    //更新线信息
                    line.lineTo(point);mGraphicsLayer.updateGraphic(graphicLineId, line); }               }else if(type == DrawType.Polygon){//获取屏幕点击坐标点Point point = map.toMapPoint(new Point(e.getX(), e.getY()));              if (startPoint == null) {startPoint = point;        polygon = new Polygon();polygon.startPath(point);        //添加节点信息Graphic graphic = new Graphic(point,new SimpleMarkerSymbol(Color.BLACK,5,STYLE.CIRCLE));tmpLayer.addGraphic(graphic);//添加多边形要素             Graphic graphic_polygon = new Graphic(polygon,FeatureSymbol.polygonSymbol_new);graphicPloygonId = mGraphicsLayer.addGraphic(graphic_polygon);          } else{                    //添加要素节点Graphic graphic_t = new Graphic(point,new SimpleMarkerSymbol(Color.BLACK,5,STYLE.CIRCLE));tmpLayer.addGraphic(graphic_t);    //更新多边形信息
                    polygon.lineTo(point);mGraphicsLayer.updateGraphic(graphicPloygonId, polygon); }               }return false;}@Overridepublic boolean onDoubleTap(MotionEvent event) {tmpLayer.removeAll();if (type == DrawType.Line) {    if(line!=null){Graphic gral = addGeometryToLocalDB(line);//添加要素至数据库if(gral!=null){mGraphicsLayer.updateGraphic(graphicLineId,gral); drawwidget.showCallout(startPoint, calloutView);}else{mGraphicsLayer.removeGraphic(graphicLineId);}    }else{Toast.makeText(DrawWidget.super.context,"未添加任务要素！",Toast.LENGTH_SHORT).show();}GraUID =graphicLineId;startPoint = null;line = null;mMyTouchListener.setType(DrawType.None);DrawWidget.super.showMessageBox("折线绘制结束！");return true;}else if(type == DrawType.Polygon){        if(polygon!=null){Graphic gra = addGeometryToLocalDB(polygon);if(gra!=null){mGraphicsLayer.updateGraphic(graphicPloygonId,gra ); //添加要素至数据库    //弹出callout窗口
                        drawwidget.showCallout(startPoint, calloutView);  }else{mGraphicsLayer.removeGraphic(graphicPloygonId);}  }else{Toast.makeText(DrawWidget.super.context,"未添加任务要素！",Toast.LENGTH_SHORT).show();}GraUID =graphicPloygonId;startPoint = null;polygon = null;mMyTouchListener.setType(DrawType.None);DrawWidget.super.showMessageBox("多边形绘制结束！");return true;        }return super.onDoubleTap(event);}//@Overridepublic boolean onDragPointerMove(MotionEvent from, MotionEvent to) {Point mapPt = map.toMapPoint(to.getX(), to.getY());if (type == DrawType.Freeline) {if (startPoint == null) {polyline = new Polyline();startPoint = map.toMapPoint(from.getX(), from.getY());polyline.startPath((float) startPoint.getX(), (float) startPoint.getY());graphicFreelineId = mGraphicsLayer.addGraphic(new Graphic(polyline,FeatureSymbol.lineSymbol_new));}polyline.lineTo((float) mapPt.getX(), (float) mapPt.getY());mGraphicsLayer.updateGraphic(graphicFreelineId,new Graphic(polyline,FeatureSymbol.lineSymbol_new));return true;}else if (type == DrawType.FreePolygon) {//polygonSymbol.setAlpha(80);if (startPoint == null) {freepolygon = new Polygon();startPoint = map.toMapPoint(from.getX(), from.getY());freepolygon.startPath((float) startPoint.getX(), (float) startPoint.getY());graphicFreePloygonId = mGraphicsLayer.addGraphic(new Graphic(freepolygon,FeatureSymbol.polygonSymbol_new));}freepolygon.lineTo((float) mapPt.getX(), (float) mapPt.getY());mGraphicsLayer.updateGraphic(graphicFreePloygonId, new Graphic(freepolygon,FeatureSymbol.polygonSymbol_new));return true;}else if(type == DrawType.Polygon||type == DrawType.Line){return false;//返回false，使屏幕不滑动固定死(两个位置)
            }return super.onDragPointerMove(from, to);}@Overridepublic boolean onDragPointerUp(MotionEvent from, MotionEvent to) {if(type == DrawType.Line ||type == DrawType.Polygon){return false;//返回false，使屏幕不滑动固定死(两个位置)}else if(type ==DrawType.Freeline ){Graphic gral = addGeometryToLocalDB(polyline);//添加要素至数据库if(gral!=null){mGraphicsLayer.updateGraphic(graphicFreelineId,gral);drawwidget.showCallout(startPoint, calloutView);}else{mGraphicsLayer.removeGraphic(graphicFreelineId);}GraUID = graphicFreelineId;startPoint = null;polyline = null;//流状线DrawWidget.super.mapView.setOnTouchListener(mDefaultMyTouchListener);}else if(type == DrawType.FreePolygon){Graphic gra = addGeometryToLocalDB(freepolygon);if(gra!=null){mGraphicsLayer.updateGraphic(graphicFreePloygonId,gra);//添加要素至数据库
                    drawwidget.showCallout(startPoint, calloutView);}else{mGraphicsLayer.removeGraphic(graphicFreePloygonId);}            GraUID = graphicFreePloygonId;startPoint = null;freepolygon = null;//流状面DrawWidget.super.mapView.setOnTouchListener(mDefaultMyTouchListener);} return super.onDragPointerUp(from, to);}