Fix SLAM map saving on close feature

Leverage Assets/ to /sdcard path conversion mechanism by specifying
map output path to Assets/map.
Add better error handling and reporting.

Author: jim-bcom

Assets/SolAR/Demos/Scenes/NoviceVersion.unity

@@ -403,7 +403,7 @@ GameObject:
   m_Icon: {fileID: 0}
   m_NavMeshLayer: 0
   m_StaticEditorFlags: 0
-  m_IsActive: 1
+  m_IsActive: 0
 --- !u!4 &262081224
 Transform:
   m_ObjectHideFlags: 0
@@ -9084,7 +9084,7 @@ PrefabInstance:
     - target: {fileID: 8997161845923243914, guid: 37f082361edc9064ba18b144c5e661ce,
         type: 3}
       propertyPath: isUnityWebcam
-      value: 0
+      value: 1
       objectReference: {fileID: 0}
     - target: {fileID: 8997161845923243914, guid: 37f082361edc9064ba18b144c5e661ce,
         type: 3}

Assets/SolAR/Demos/Scripts/SolARMenu.cs

@@ -101,16 +101,13 @@ void Close()
                 solarPipeline.m_configurationPath = solarPipeline.m_pipelinesPath[solarPipeline.m_selectedPipeline];
                 //solarPipeline.m_uuid = solarPipeline.m_pipelinesUUID[solarPipeline.m_selectedPipeline];
 #if UNITY_ANDROID && !UNITY_EDITOR
-                Android.SaveConfiguration(solarPipeline.m_configurationPath);
-                Text text = m_popup.GetComponentInChildren<Text>();
-                if (pipelineMngrStopSuccess)
-                {
-                    text.text = "Configuration saved";
-                }
-                else
+                string message = "Configuration saved";
+                if (!Android.SaveConfiguration(solarPipeline.m_configurationPath) || !pipelineMngrStopSuccess)
                 {
-                    text.text = "Configuration could not be saved (see logs)";
+                    message = "Error when closing pipeline (see logs)";
                 }
+                Text text = m_popup.GetComponentInChildren<Text>();
+                text.text = message;
                 StartCoroutine(FadeOut(m_popup.GetComponent<Image>(), m_popup.GetComponentInChildren<Text>()));
 #endif
                 solarPipeline.Init();

Assets/SolAR/Editor/SolARBuildProcess.cs

@@ -127,7 +127,11 @@ void ReplacePluginPaths(string confFileName, BuildReport report)
             foreach (var element in configComp.Elements("property"))
             {
                 var attriName = element.Attribute("name");
-                if (attriName.Value.Contains("File") || attriName.Value.Contains("Path") || attriName.Value.Contains("file") || attriName.Value.Contains("path"))
+                if (attriName.Value.Contains("File")
+                    || attriName.Value.Contains("Path")
+                    || attriName.Value.Contains("file")
+                    || attriName.Value.Contains("path")
+                    || attriName.Value.Contains("directory"))
                 {
                     var attribValue = element.Attribute("value");
                     string new_value = "";

Assets/SolAR/Pipelines/PipelineSlam.xml

@@ -280,7 +280,7 @@
       <property name="minTrackedPoints" type="int" value="100" />
     </configure>
     <configure component="SolARMapper">
-      <property name="directory" type="string" value="map" />
+      <property name="directory" type="string" value="./Assets/map" />
       <property name="identificationFileName" type="string" value="identification.bin" />
       <property name="coordinateFileName" type="string" value="coordinate.bin" />
       <property name="pointCloudManagerFileName" type="string" value="pointcloud.bin" />

Assets/SolAR/Scripts/Utilities/Android.cs

@@ -120,11 +120,19 @@ public static void ReplacePathToApp(string filepath)
          * Write a cache with the path of the current pipeline used
          * </summary>
          * */
-        public static void SaveConfiguration(string configurationPath)
+        public static bool SaveConfiguration(string configurationPath)
         {
             string dest = Application.persistentDataPath + "/StreamingAssets/SolAR/Android/.pipeline";
-            if (File.Exists(dest)) File.Delete(dest);
-            File.WriteAllText(dest, configurationPath);
+            try
+            {
+                if (File.Exists(dest)) File.Delete(dest);
+                File.WriteAllText(dest, configurationPath);
+            } catch(Exception e)
+            {
+                Debug.LogError("Could not save configuration '" + configurationPath + "' to '" + dest + "': " + e.Message );
+                return false;
+            }
+            return true;
         }
 
         /** <summary>

Assets/StreamingAssets/SolAR/Pipelines/PipelineSlam.xml

@@ -280,7 +280,7 @@
       <property name="minTrackedPoints" type="int" value="100" />
     </configure>
     <configure component="SolARMapper">
-      <property name="directory" type="string" value="map" />
+      <property name="directory" type="string" value="./SolARDemo_Data/map" />
       <property name="identificationFileName" type="string" value="identification.bin" />
       <property name="coordinateFileName" type="string" value="coordinate.bin" />
       <property name="pointCloudManagerFileName" type="string" value="pointcloud.bin" />