Merge pull request #330 from Esri/nj_fixShowErrors

fixed method used for showing the error in two samples

Author: njarecha

arcgis-ios-sdk-samples/Analysis/Statistical query/StatisticalQueryViewController.swift

@@ -84,7 +84,7 @@ class StatisticalQueryViewController: UIViewController {
             //
             // If there an error, display it
             guard error == nil else {
-                SVProgressHUD.show(withStatus: error!.localizedDescription, maskType: .gradient)
+                SVProgressHUD.showError(withStatus: error!.localizedDescription, maskType: .gradient)
                 return
             }
 

arcgis-ios-sdk-samples/Layers/Raster layer (service)/RasterLayerUsingServiceVC.swift

@@ -47,7 +47,7 @@ class RasterLayerUsingServiceVC : UIViewController {
         self.rasterLayer.load { [weak self] (error) in
 
             guard error == nil else {
-                SVProgressHUD.show(withStatus: error!.localizedDescription, maskType: .gradient)
+                SVProgressHUD.showError(withStatus: error!.localizedDescription, maskType: .gradient)
                 return
             }