剛剛接觸arcgis android,在儲存地圖要素的時候出現bug，導致應用閃退。異常日誌：

this = {[email protected]} 
t = {[email protected]} "Thread[main,5,main]"
e = {[email protected]} "com.esri.arcgisruntime.ArcGISRuntimeException: Cannot call this method in this context"
 mAdditionalMessage = "Can only call this method on a loaded table."
 mCause = null
 mCode = 15
 mDomain = {
 
[email protected]} "ARCGIS_RUNTIME"
 mErrorMessage = "Cannot call this method in this context"
 cause = {[email protected]} "com.esri.arcgisruntime.ArcGISRuntimeException: Cannot call this method in this context"

異常程式碼為：

  private void save2ArcgisService() {
        //儲存路徑到arcgis伺服器
        final ServiceFeatureTable serviceFeatureTable = new ServiceFeatureTable(featureUrl);
        FeatureLayer featureLayer = new FeatureLayer(serviceFeatureTable);
        map.getMap().getOperationalLayers().add(featureLayer);
        polylinePoints.add(new Point(23.041117,113.810075));
        addFeature( new Polyline(polylinePoints), serviceFeatureTable);

    }
 

異常發生原因為ServiceFeatureTable載入完成之前呼叫地圖要素儲存方法。程式碼更正：

    private void save2ArcgisService() {
        //儲存路徑到arcgis伺服器
        final ServiceFeatureTable serviceFeatureTable = new ServiceFeatureTable(featureUrl);
        FeatureLayer featureLayer = new FeatureLayer(serviceFeatureTable);
        map.getMap().getOperationalLayers().add(featureLayer);
        polylinePoints.add(new Point(23.041117,113.810075));
        serviceFeatureTable.setFeatureRequestMode(ServiceFeatureTable.FeatureRequestMode.ON_INTERACTION_NO_CACHE);
        serviceFeatureTable.addLoadStatusChangedListener(new LoadStatusChangedListener() {
            @Override
            public void loadStatusChanged(LoadStatusChangedEvent loadStatusChangedEvent) {
                if (loadStatusChangedEvent.getNewLoadStatus() == LoadStatus.LOADED) {
                    addFeature( new Polyline(polylinePoints), serviceFeatureTable);
                }

            }
        });

    }
 

異常解決。