fix/Fix for fetch recommendations crash

Author: michaela-dev

example/XamarinExample.Android/MainActivity.cs

@@ -5,8 +5,6 @@
 using Android.Runtime;
 using Android.OS;
 using Android.Content;
-using Android.Widget;
-using ExponeaSdk;
 
 namespace XamarinExample.Droid
 {

example/XamarinExample/ConfigInfoPage.xaml

@@ -35,12 +35,12 @@
 
                 </StackLayout>
 
-                <StackLayout Orientation="Horizontal">
+                <!--<StackLayout Orientation="Horizontal">
 
                      <Label Text="Token Tracking Frequency" Margin="0,0,20,0"/>
                     <Label Text="{Binding TokenTrackFrequency}" TextColor="#005FDB"/>
 
-                </StackLayout>
+                </StackLayout>-->
 
                  <Label Text="Default properties"/>
                     <Label x:Name="defaultProperties" TextColor="#005FDB"/>

example/XamarinExample/MainPage.xaml.cs

@@ -116,6 +116,9 @@ async void Switch_Project_ClickedAsync(System.Object sender, System.EventArgs e)
 
             _exponea.SwitchProject(new Project(projectToken, authorization, baseUrl));
             customerCookie.Text = "Customer cookie: \n" + _exponea.CustomerCookie;
+            Preferences.Set("projectToken", projectToken);
+            Preferences.Set("authorization", authorization);
+            Preferences.Set("baseURL", baseUrl);
         }
 
         async void Show_Configuration_ClickedAsync(System.Object sender, System.EventArgs e)
@@ -131,7 +134,6 @@ void Track_Session_Start_Clicked(System.Object sender, System.EventArgs e)
         void Track_Session_End_Clicked(System.Object sender, System.EventArgs e)
         {
             _exponea.TrackSessionEnd();
-            _exponea.TrackPushToken("token");
         }
     }
 }

pcl/RecommendationsRequest.cs

@@ -20,6 +20,6 @@ public RecommendationsRequest(string id, bool fillWithRandom = false, int size =
         public int Size { get; set; } = DefaultSize;
         public IDictionary<string, string> Items { get; set; } = new Dictionary<string, string>();
         public bool NoTrack { get; set; }
-        public IList<string> CatalogAttributesWhitelist { get; set; } = new List<string>();
+        public List<string> CatalogAttributesWhitelist { get; set; } = new List<string>();
     }
 }

pcl/iOS/ConversionExtensions.cs

@@ -24,6 +24,24 @@ public static NSMutableDictionary<NSString, NSObject> ToNsDictionary<TValue>(thi
             return res;
         }
 
+        public static NSArray ToNSArray<TValue>(this List<TValue> list)
+        {
+
+            if (list == null)
+            {
+                return null;
+            }
+
+            var array = new NSObject[list.Count];
+
+            for (int i = 0; i < list.Count; i++)
+            {
+                array[i] = list[i].ToNSObject();
+            }
+
+            return NSArray.FromNSObjects<NSObject>(array);
+        }
+
         public static NSMutableDictionary<NSString, NSMutableArray> ToNsDictionary(this IDictionary<EventType, IList<Project>> dic)
         {
             if (dic == null)
@@ -142,8 +160,9 @@ public static NSObject ToNSObject(this object value)
                 float f => new NSNumber(f),
                 double d => new NSNumber(d),
                 string s => new NSString(s),
+                bool b => new NSNumber(b),
                 NSObject o => o,
-                _ => throw new NotSupportedException()
+                _ => throw new ArgumentException()
             };
         }
     }

pcl/iOS/ExponeaSdk.cs

@@ -79,17 +79,24 @@ public Task<string> FetchRecommendationsAsync(RecommendationsRequest request)
             var tcs = new TaskCompletionSource<string>();
 
             var options = new NSDictionary(
-                "id", request.Id,
-                "fillWithRandom", request.FillWithRandom,
-                "size", request.Size,
+                "id", request.Id.ToNSObject(),
+                "fillWithRandom", request.FillWithRandom.ToNSObject(),
+                "size", request.Size.ToNSObject(),
                 "items", request.Items.ToNsDictionary<string>(),
-                "noTrack", request.NoTrack,
-                "catalogAttributesWhitelist", request.CatalogAttributesWhitelist);
+                "noTrack", request.NoTrack.ToNSObject(),
+                "catalogAttributesWhitelist", request.CatalogAttributesWhitelist.ToNSArray<string>());
+
+            Action<NSString> successDelegate = delegate (NSString success) {
+                //TODO: Parse result as list of CustomerRecommendation
+                tcs.SetResult(success);
+            };
+
+            Action<NSString> failDelegate = delegate (NSString error) {
+                tcs.SetException(new FetchException(error, error));
+            };
+
+            _exponea.FetchRecommendations(options, successDelegate, failDelegate);
 
-            _exponea.FetchRecommendations(
-                options,
-                success => tcs.SetResult(success), //TODO: Parse result as list of CustomerRecommendation
-                failure => tcs.SetException(new FetchException(failure, failure)));
             return tcs.Task;
         }