ArcGIS for Android入门程序之DrawTool2.0

来自：http://blog.csdn.net/arcgis_mobile/article/details/8084763

GISpace博客《ArcGIS for Android入门程序之DrawTool》http://blog.csdn.net/gispace/article/details/6723459在ArcGIS Android SDK 0.9版本实现绘制各种几个图形。ArcGIS Android SDK目前版本为2.0，较之前版本变化较大，故将之前版本移植到2.0版本下。源代码下载地址：http://download.csdn.net/detail/arcgis_mobile/4659389

该程序主要说明如何处理与MapView交互的各种事件，以订阅发布模式封装几何图形绘制工具类DrawTool，使用方法如下：

[java] view plain copy

<spanstyle="font-family:CourierNew;font-size:18px;">packagecn.com.esrichina.drawtool;
importandroid.app.Activity;
importandroid.os.Bundle;
importandroid.view.Menu;
importandroid.view.MenuInflater;
importandroid.view.MenuItem;
importcom.esri.android.map.GraphicsLayer;
importcom.esri.android.map.MapView;
importcom.esri.android.map.ags.ArcGISTiledMapServiceLayer;
publicclassDrawToolActivityextendsActivityimplementsDrawEventListener{
privateMapViewmapView;
privateGraphicsLayerdrawLayer;
privateDrawTooldrawTool;
publicvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.mapView=(MapView)this.findViewById(R.id.map);
//添加底图
this.mapView
.addLayer(newArcGISTiledMapServiceLayer(
"http://www.arcgisonline.cn/ArcGIS/rest/services/ChinaOnlineCommunity/MapServer"));
//在drawLayer上绘制几何图形
this.drawLayer=newGraphicsLayer();
this.mapView.addLayer(this.drawLayer);
this.drawTool=newDrawTool(this.mapView);
//此类实现DawEventListener接口
this.drawTool.addEventListener(this);
}
publicbooleanonCreateOptionsMenu(Menumenu){
MenuInflaterinflater=this.getMenuInflater();
inflater.inflate(R.menu.menu,menu);
returntrue;
}
@Override
publicbooleanonOptionsItemSelected(MenuItemitem){
switch(item.getItemId()){
caseR.id.point:
drawTool.activate(DrawTool.POINT);
break;
caseR.id.envelope:
drawTool.activate(DrawTool.ENVELOPE);
break;
caseR.id.polygon:
drawTool.activate(DrawTool.POLYGON);
break;
caseR.id.polyline:
drawTool.activate(DrawTool.POLYLINE);
break;
caseR.id.freehandpolygon:
drawTool.activate(DrawTool.FREEHAND_POLYGON);
break;
caseR.id.freehandpolyline:
drawTool.activate(DrawTool.FREEHAND_POLYLINE);
break;
caseR.id.circle:
drawTool.activate(DrawTool.CIRCLE);
break;
caseR.id.clear:
this.drawLayer.removeAll();
this.drawTool.deactivate();
break;
}
returntrue;
}
//实现DrawEventListener中定义的方法
publicvoidhandleDrawEvent(DrawEventevent){
//将画好的图形（已经实例化了Graphic），添加到drawLayer中并刷新显示
this.drawLayer.addGraphic(event.getDrawGraphic());
}
@Override
protectedvoidonDestroy(){
super.onDestroy();
}
}</span>

在Android模拟器执行效果图如下：

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