refactor: rename customLogger to useCustomLogger

- Update 'Constants.swift' to change 'customLogger' to 'useCustomLogger'
- Update 'SwiftOptimizelyFlutterSdkPlugin.swift' to change 'customLogger' to 'useCustomLogger'
- Update 'optimizely_flutter_sdk.dart' to change 'logger' parameter to 'OptimizelyLogger'
- Update 'optimizely_client_wrapper.dart' to change 'customLogger' to 'useCustomLogger'
- Update 'constants.dart' to change 'customLogger' to 'useCustomLogger'

Author: muzahidul-opti

ios/Classes/HelperClasses/Constants.swift

@@ -91,7 +91,7 @@ struct RequestParameterKey {
     static let reasons = "reasons"
     static let decideOptions = "optimizelyDecideOption"
     static let defaultLogLevel = "defaultLogLevel"
-    static let customLogger = "customLogger"
+    static let useCustomLogger = "useCustomLogger"
     static let eventBatchSize = "eventBatchSize"
     static let eventTimeInterval = "eventTimeInterval"
     static let eventMaxQueueSize = "eventMaxQueueSize"

ios/Classes/SwiftOptimizelyFlutterSdkPlugin.swift

@@ -36,10 +36,8 @@ public class SwiftOptimizelyFlutterSdkPlugin: NSObject, FlutterPlugin {
         return UUID().uuidString
     }
 
-    static var registrar: FlutterPluginRegistrar?
     /// Registers optimizely_flutter_sdk channel to communicate with the flutter sdk to receive requests and send responses
     public static func register(with registrar: FlutterPluginRegistrar) {
-        self.registrar = registrar
         channel = FlutterMethodChannel(name: "optimizely_flutter_sdk", binaryMessenger: registrar.messenger())
         let instance = SwiftOptimizelyFlutterSdkPlugin()
         registrar.addMethodCallDelegate(instance, channel: channel)
@@ -176,7 +174,10 @@ public class SwiftOptimizelyFlutterSdkPlugin: NSObject, FlutterPlugin {
 
         // Check if custom logger is requested
         var logger: OPTLogger?
-        if let useCustomLogger = parameters[RequestParameterKey.customLogger] as? Bool, useCustomLogger {
+        if let useCustomLogger = parameters[RequestParameterKey.useCustomLogger] as? Bool, useCustomLogger {
+            // OptimizelyFlutterLogger bridges iOS logs to Flutter via Method Channel
+            // When useCustomLogger = true:
+            // iOS SDK log → OptimizelyFlutterLogger → Flutter Method Channel → Flutter console
             logger = OptimizelyFlutterLogger()
         }
 

lib/optimizely_flutter_sdk.dart

@@ -89,7 +89,7 @@ class OptimizelyFlutterSdk {
     Set<OptimizelyDecideOption> defaultDecideOptions = const {},
     OptimizelyLogLevel defaultLogLevel = OptimizelyLogLevel.info,
     SDKSettings sdkSettings = const SDKSettings(),
-    OptimizelyLogger? logger}) // Add logger parameter
+    OptimizelyLogger? logger}) 
     : _eventOptions = eventOptions,
       _datafilePeriodicDownloadInterval = datafilePeriodicDownloadInterval,
       _datafileHostOptions = datafileHostOptions,

lib/src/optimizely_client_wrapper.dart

@@ -80,7 +80,7 @@ class OptimizelyClientWrapper {
       Constants.eventBatchSize: eventOptions.batchSize,
       Constants.eventTimeInterval: eventOptions.timeInterval,
       Constants.eventMaxQueueSize: eventOptions.maxQueueSize,
-      Constants.customLogger: logger != null,
+      Constants.useCustomLogger: logger != null,
     };
 
     // Odp Request params

lib/src/utils/constants.dart

@@ -86,7 +86,7 @@ class Constants {
   static const String optimizelyDecideOption = "optimizelyDecideOption";
   static const String optimizelySegmentOption = "optimizelySegmentOption";
   static const String optimizelySdkSettings = "optimizelySdkSettings";
-  static const String customLogger = 'customLogger';
+  static const String useCustomLogger = 'useCustomLogger';
   static const String defaultLogLevel = "defaultLogLevel";
   static const String payload = "payload";
   static const String value = "value";