ArcGIS for Android入門程式之DrawTool2.0

GISpace部落格《ArcGIS for Android入門程式之DrawTool》http://blog.csdn.net/gispace/article/details/6723459 在ArcGIS Android SDK 0.9版本實現繪製各種幾個圖形。ArcGIS
Android SDK目前版本為2.0，較之前版本變化較大，故將之前版本移植到2.0版本下。原始碼：http://download.csdn.net/detail/arcgis_mobile/4659389

該程式主要說明如何處理與MapView互動的各種事件，以訂閱發布模式封裝幾何圖形繪製工具類DrawTool，使用方法如下：

package cn.com.esrichina.drawtool;import android.app.Activity;import android.os.Bundle;import android.view.Menu;import android.view.MenuInflater;import android.view.MenuItem;import com.esri.android.map.GraphicsLayer;import com.esri.android.map.MapView;import com.esri.android.map.ags.ArcGISTiledMapServiceLayer;public class DrawToolActivity extends Activity implements DrawEventListener {private MapView mapView;private GraphicsLayer drawLayer;private DrawTool drawTool;public void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);this.mapView = (MapView) this.findViewById(R.id.map);// 添加底圖this.mapView.addLayer(new ArcGISTiledMapServiceLayer("http://www.arcgisonline.cn/ArcGIS/rest/services/ChinaOnlineCommunity/MapServer"));// 在drawLayer上繪製幾何圖形this.drawLayer = new GraphicsLayer();this.mapView.addLayer(this.drawLayer);this.drawTool = new DrawTool(this.mapView);// 此類實現DawEventListener介面this.drawTool.addEventListener(this);}public boolean onCreateOptionsMenu(Menu menu) {MenuInflater inflater = this.getMenuInflater();inflater.inflate(R.menu.menu, menu);return true;}@Overridepublic boolean onOptionsItemSelected(MenuItem item) {switch (item.getItemId()) {case R.id.point:drawTool.activate(DrawTool.POINT);break;case R.id.envelope:drawTool.activate(DrawTool.ENVELOPE);break;case R.id.polygon:drawTool.activate(DrawTool.POLYGON);break;case R.id.polyline:drawTool.activate(DrawTool.POLYLINE);break;case R.id.freehandpolygon:drawTool.activate(DrawTool.FREEHAND_POLYGON);break;case R.id.freehandpolyline:drawTool.activate(DrawTool.FREEHAND_POLYLINE);break;case R.id.circle:drawTool.activate(DrawTool.CIRCLE);break;case R.id.clear:this.drawLayer.removeAll();this.drawTool.deactivate();break;}return true;}// 實現DrawEventListener中定義的方法public void handleDrawEvent(DrawEvent event) {// 將畫好的圖形（已經執行個體化了Graphic），添加到drawLayer中並重新整理顯示this.drawLayer.addGraphic(event.getDrawGraphic());}@Overrideprotected void onDestroy() {super.onDestroy();}}

在Android模擬器執行如下：