图层损坏 E/ArcGIS﹕ The map or layer has been destroyed or recycled. 资源未释放

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看到论坛上有个网友和我一样的问题：

The map or layer has been destroyed or recyled

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我这边的详细问题是：

地图的Activity onDestroy()后，在重新打开app的时候就报 The map or layer has been destroyed or recycled.错误，然后地图能显示

但是数据丢了..

原来的destroy()

@Overrideprotected void onDestroy() {featureLayers.clear();mMapView.destroyDrawingCache();try {unregisterReceiver(receiver);}catch (Exception e){e.printStackTrace();}try {unregisterReceiver(receiver2);}catch (Exception e){e.printStackTrace();}//结束服务，如果想让服务一直运行就注销此句try {stopService(new Intent(this, LocationService.class));}catch (Exception e){e.printStackTrace();}super.onDestroy();}

//初始化数据图层private void initializeRoutingAndGeocoding() {for(int i=0;i<allfloor;i++) {Geodatabase geodatabase = null;try {geodatabase = new Geodatabase(geofilename[i]);List<GeodatabaseFeatureTable> table = geodatabase.getGeodatabaseTables();Log.i("zjx", "list:" + table);GeodatabaseFeatureTable mytable;if(i==1)mytable = geodatabase.getGeodatabaseFeatureTableByLayerId(0);else mytable= geodatabase.getGeodatabaseFeatureTableByLayerId(1);Log.i("zjx","mytable:"+mytable);featureLayers.add(new FeatureLayer(mytable));  //问题出在这// Attempt to load the local geocoding and routing datamMapView.addLayer(featureLayers.get(i));      //之前的资源没有释放(list.clear()),get(i)并不是新增的} catch (FileNotFoundException e) {// TODO Auto-generated catch blocke.printStackTrace();}}trygetDataName();}

所以在onDestroy 里面加一下释放所有资源的函数，以前一直以为java会自己快速回收的= =

，

esri论坛sso不能登录，希望那个外国网友能看到这文章把~

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