使用说明

this.drawTool = new DrawTool(this.mapView);

//扩展Activity
public class MainActivity extends Activity implements DrawEventListener {
    ……
}

this.drawTool.addEventListener(this);

@Override
public void handleDrawEvent(DrawEvent event) throws TableException, FileNotFoundException {
    // 将画好的图形（已经实例化了Graphic），添加到drawLayer中并刷新显示
    this.graphicsLayer.addGraphic(event.getDrawGraphic());
    this.mapView.setOnTouchListener(mapDefaultOnTouchListener);
}

 @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.btnDrawPoint://绘制点
                drawTool.activate(DrawTool.POINT);
                break;
            case R.id.btnDrawPolyline://绘制线
                drawTool.activate(DrawTool.POLYLINE);
                break;
            case R.id.btnDrawFreePolyline://绘制流状线
                drawTool.activate(DrawTool.FREEHAND_POLYLINE);
                break;
            case R.id.btnDrawPolygon://绘制面
                drawTool.activate(DrawTool.POLYGON);
                break;
            case R.id.btnDrawFreePolygon://绘制流状面
                drawTool.activate(DrawTool.FREEHAND_POLYGON);
                break;
            case R.id.btnDrawCircle://绘制圆
                drawTool.activate(DrawTool.CIRCLE);
                break;
            case R.id.btnDrawEnvlope://绘制矩形
                drawTool.activate(DrawTool.ENVELOPE);
                break;
            case R.id.btnDrawSave://保存
                drawTool.sendDrawEndEvent();
                break;
            case R.id.btnDrawUndo://回退
                drawTool.actionUndo();
                break;
            case R.id.btnDrawDeleteNode://删除节点
                drawTool.actionDelete();
                break;
        }

//面要素分割CutPolygonL
public static ArrayList<Polygon> Cut(Polygon gon, Polyline line)
//线要素分割CutPolyline
public static ArrayList<Polyline> Cut(Polyline waitingSplitPolyline, Polyline line)