fix(ios): prevent unnecessary map view style changes on prop update (#4014)

Author: Gnative

ios/RNMBX/RNMBXMapViewComponentView.mm

@@ -50,6 +50,7 @@ @implementation RNMBXMapViewComponentView {
     RNMBXMapView *_view;
     RNMBXMapViewEventDispatcher *_eventDispatcher;
     CGRect _frame;
+    id _lastStyleURL;
 }
 
 - (instancetype)initWithFrame:(CGRect)frame
@@ -135,7 +136,7 @@ - (void)updateProps:(const Props::Shared &)props oldProps:(const Props::Shared &
 {
     const auto &oldViewProps = static_cast<const RNMBXMapViewProps &>(*oldProps);
     const auto &newViewProps = static_cast<const RNMBXMapViewProps &>(*props);
-  
+
     RNMBX_REMAP_OPTIONAL_PROP_BOOL(attributionEnabled, reactAttributionEnabled)
 
     id attributionPosition = RNMBXConvertFollyDynamicToId(newViewProps.attributionPosition);
@@ -187,7 +188,7 @@ - (void)updateProps:(const Props::Shared &)props oldProps:(const Props::Shared &
     RNMBX_REMAP_OPTIONAL_PROP_BOOL(scrollEnabled, reactScrollEnabled)
 
     RNMBX_REMAP_OPTIONAL_PROP_BOOL(rotateEnabled, reactRotateEnabled)
-    
+
     RNMBX_REMAP_OPTIONAL_PROP_BOOL(pitchEnabled, reactPitchEnabled)
 
     id preferredFramesPerSecond = RNMBXConvertFollyDynamicToId(newViewProps.preferredFramesPerSecond);
@@ -209,7 +210,10 @@ - (void)updateProps:(const Props::Shared &)props oldProps:(const Props::Shared &
 
     id styleURL = RNMBXConvertFollyDynamicToId(newViewProps.styleURL);
     if (styleURL != nil) {
-        _view.reactStyleURL = styleURL;
+        if (_lastStyleURL == nil || ![_lastStyleURL isEqual:styleURL]) {
+            _view.reactStyleURL = styleURL;
+            _lastStyleURL = styleURL;
+        }
     }
 
   [super updateProps:props oldProps:oldProps];