revamp the way the plugin requests permisions on Android by showing a pop-up to the user rather than silently crashing if those permisions were not already given

Source/SenseGloveAndroid/Private/SenseGloveAndroidModule.cpp

@@ -35,6 +35,7 @@
 
 #include "SenseGloveAndroidModule.h"
 
+#include "SGAndroid/SGAndroidPermissions.h"
 #include "SGAndroid/SGConnectJNI.h"
 #include "SGAndroid/SGCoreJNI.h"
 #include "SGLog/SGLog.h"
@@ -45,16 +46,8 @@ void FSenseGloveAndroidModule::StartupModule()
 {
     SGLOG("Starting up the SenseGloveAndroid module...");
 
-#if PLATFORM_ANDROID
-    const int32 R1 = FSGConnectJNI::Initialize();
-    const int32 R2 = FSGCoreJNI::Initialize();
-
-    ensureAlwaysMsgf(R1 == 0,
-        TEXT("Failed to initialize the SGConnect JNI bridge to SGConnect for Android! Status Code: %d"), R1);
-
-    ensureAlwaysMsgf(R2 == 0,
-        TEXT("Failed to initialize the SGCore JNI bridge to SGConnect for Android! Status Code: %d"), R2);
-#endif  /* PLATFORM_ANDROID */
+    OnPostEngineInitHandle = FCoreDelegates::OnPostEngineInit.AddRaw(
+        this, &FSenseGloveAndroidModule::OnPostEngineInit);
 }
 
 void FSenseGloveAndroidModule::PreUnloadCallback()
@@ -72,4 +65,26 @@ void FSenseGloveAndroidModule::ShutdownModule()
     SGLOG("Shutting down the SenseGloveAndroid module...");
 }
 
+void FSenseGloveAndroidModule::OnPostEngineInit() const
+{
+#if PLATFORM_ANDROID
+    USGAndroidPermissions::GetInstance()->Request(
+        [](const TArray<FString>& Permissions, const TArray<bool>& GrantResults)
+        {
+            const int32 R1 = FSGConnectJNI::Initialize();
+            const int32 R2 = FSGCoreJNI::Initialize();
+
+            ensureAlwaysMsgf(R1 == 0,
+                             TEXT(
+                                 "Failed to initialize the SGConnect JNI bridge to SGConnect for Android! Status Code: %d"
+                             ), R1);
+
+            ensureAlwaysMsgf(R2 == 0,
+                             TEXT("Failed to initialize the SGCore JNI bridge to SGConnect for Android! Status Code: %d"
+                             ), R2);
+
+        });
+#endif  /* PLATFORM_ANDROID */
+}
+
 #undef LOCTEXT_NAMESPACE

Source/SenseGloveAndroid/Private/SenseGloveAndroidModule.h

@@ -35,17 +35,24 @@
 
 #pragma once
 
+#include "Delegates/IDelegateInstance.h"
 #include "Modules/ModuleInterface.h"
 
 #define LOCTEXT_NAMESPACE "SenseGloveAndroid"
 
 class FSenseGloveAndroidModule : public IModuleInterface
 {
+private:
+    FDelegateHandle OnPostEngineInitHandle;
+
 public:
     virtual void StartupModule() override;
     virtual void PreUnloadCallback() override;
     virtual void PostLoadCallback() override;
     virtual void ShutdownModule() override;
+
+private:
+    void OnPostEngineInit() const;
 };
 
 #undef LOCTEXT_NAMESPACE

Source/SenseGloveAndroid/SenseGloveAndroid.Build.cs

@@ -46,6 +46,7 @@ public class SenseGloveAndroid : ModuleRules
         PrivateDependencyModuleNames.AddRange(
             new string[]
             {
+                "AndroidPermission",
                 "Core",
                 "CoreUObject",
                 "Engine",