[google_maps_flutter] Replace deprecated color APIs in platform interface (#10477)

Replaces the deprecated `Color.value` with the replacement `toARGB()`. Since this is for legacy JSON representations, it continues it must remain compatible, so uses the same representation (unlike #10474 where it's replaced with structured representations).

Part of flutter/flutter#159739

## Pre-Review Checklist

[^1]: Regular contributors who have demonstrated familiarity with the repository guidelines only need to comment if the PR is not auto-exempted by repo tooling.

Author: stuartmorgan-g

packages/google_maps_flutter/google_maps_flutter_platform_interface/CHANGELOG.md

@@ -1,5 +1,6 @@
-## NEXT
+## 2.14.1
 
+* Replaces internal use of deprecated methods.
 * Updates minimum supported SDK version to Flutter 3.32/Dart 3.8.
 
 ## 2.14.0

packages/google_maps_flutter/google_maps_flutter_platform_interface/lib/src/method_channel/serialization.dart

@@ -130,7 +130,9 @@ Object serializeHeatmapGradient(HeatmapGradient gradient) {
   _addIfNonNull(
     json,
     _heatmapGradientColorsKey,
-    gradient.colors.map((HeatmapGradientColor e) => e.color.value).toList(),
+    gradient.colors
+        .map((HeatmapGradientColor e) => e.color.toARGB32())
+        .toList(),
   );
   _addIfNonNull(
     json,

packages/google_maps_flutter/google_maps_flutter_platform_interface/lib/src/types/bitmap.dart

@@ -1107,8 +1107,9 @@ class PinConfig extends BitmapDescriptor {
   Object toJson() => <Object>[
     type,
     <String, Object?>{
-      if (backgroundColor != null) 'backgroundColor': backgroundColor?.value,
-      if (borderColor != null) 'borderColor': borderColor?.value,
+      if (backgroundColor != null)
+        'backgroundColor': backgroundColor?.toARGB32(),
+      if (borderColor != null) 'borderColor': borderColor?.toARGB32(),
       if (glyph != null) 'glyph': glyph?.toJson(),
     },
   ];
@@ -1131,7 +1132,7 @@ class CircleGlyph extends AdvancedMarkerGlyph {
   @override
   Object toJson() => <Object>[
     'circleGlyph',
-    <String, Object>{'color': color.value},
+    <String, Object>{'color': color.toARGB32()},
   ];
 }
 
@@ -1175,7 +1176,7 @@ class TextGlyph extends AdvancedMarkerGlyph {
       'textGlyph',
       <String, Object>{
         'text': text,
-        if (textColor != null) 'textColor': textColor!.value,
+        if (textColor != null) 'textColor': textColor!.toARGB32(),
       },
     ];
   }

packages/google_maps_flutter/google_maps_flutter_platform_interface/lib/src/types/circle.dart

@@ -121,10 +121,10 @@ class Circle implements MapsObject<Circle> {
 
     addIfPresent('circleId', circleId.value);
     addIfPresent('consumeTapEvents', consumeTapEvents);
-    addIfPresent('fillColor', fillColor.value);
+    addIfPresent('fillColor', fillColor.toARGB32());
     addIfPresent('center', center.toJson());
     addIfPresent('radius', radius);
-    addIfPresent('strokeColor', strokeColor.value);
+    addIfPresent('strokeColor', strokeColor.toARGB32());
     addIfPresent('strokeWidth', strokeWidth);
     addIfPresent('visible', visible);
     addIfPresent('zIndex', zIndex);

packages/google_maps_flutter/google_maps_flutter_platform_interface/lib/src/types/heatmap.dart

@@ -293,7 +293,7 @@ class HeatmapGradient {
 
     addIfPresent(
       'colors',
-      colors.map((HeatmapGradientColor e) => e.color.value).toList(),
+      colors.map((HeatmapGradientColor e) => e.color.toARGB32()).toList(),
     );
     addIfPresent(
       'startPoints',

packages/google_maps_flutter/google_maps_flutter_platform_interface/lib/src/types/polygon.dart

@@ -141,9 +141,9 @@ class Polygon implements MapsObject<Polygon> {
 
     addIfPresent('polygonId', polygonId.value);
     addIfPresent('consumeTapEvents', consumeTapEvents);
-    addIfPresent('fillColor', fillColor.value);
+    addIfPresent('fillColor', fillColor.toARGB32());
     addIfPresent('geodesic', geodesic);
-    addIfPresent('strokeColor', strokeColor.value);
+    addIfPresent('strokeColor', strokeColor.toARGB32());
     addIfPresent('strokeWidth', strokeWidth);
     addIfPresent('visible', visible);
     addIfPresent('zIndex', zIndex);

packages/google_maps_flutter/google_maps_flutter_platform_interface/lib/src/types/polyline.dart

@@ -171,7 +171,7 @@ class Polyline implements MapsObject<Polyline> {
 
     addIfPresent('polylineId', polylineId.value);
     addIfPresent('consumeTapEvents', consumeTapEvents);
-    addIfPresent('color', color.value);
+    addIfPresent('color', color.toARGB32());
     addIfPresent('endCap', endCap.toJson());
     addIfPresent('geodesic', geodesic);
     addIfPresent('jointType', jointType.value);

packages/google_maps_flutter/google_maps_flutter_platform_interface/pubspec.yaml

@@ -4,7 +4,7 @@ repository: https://github.com/flutter/packages/tree/main/packages/google_maps_f
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+maps%22
 # NOTE: We strongly prefer non-breaking changes, even at the expense of a
 # less-clean API. See https://flutter.dev/go/platform-interface-breaking-changes
-version: 2.14.0
+version: 2.14.1
 
 environment:
   sdk: ^3.8.0

packages/google_maps_flutter/google_maps_flutter_platform_interface/test/types/bitmap_test.dart

@@ -784,8 +784,8 @@ void main() {
       expect(pinConfig.toJson(), <Object>[
         PinConfig.type,
         <String, Object>{
-          'backgroundColor': Colors.green.value,
-          'borderColor': Colors.blue.value,
+          'backgroundColor': Colors.green.toARGB32(),
+          'borderColor': Colors.blue.toARGB32(),
         },
       ]);
     });
@@ -802,11 +802,14 @@ void main() {
       expect(pinConfig.toJson(), <Object>[
         PinConfig.type,
         <String, Object>{
-          'backgroundColor': Colors.green.value,
-          'borderColor': Colors.blue.value,
+          'backgroundColor': Colors.green.toARGB32(),
+          'borderColor': Colors.blue.toARGB32(),
           'glyph': <Object>[
             'textGlyph',
-            <Object, Object>{'text': 'Hello', 'textColor': Colors.red.value},
+            <Object, Object>{
+              'text': 'Hello',
+              'textColor': Colors.red.toARGB32(),
+            },
           ],
         },
       ]);
@@ -831,8 +834,8 @@ void main() {
               'bitmap': <Object>['fromAsset', 'red_square.png'],
             },
           ],
-          'backgroundColor': Colors.black.value,
-          'borderColor': Colors.red.value,
+          'backgroundColor': Colors.black.toARGB32(),
+          'borderColor': Colors.red.toARGB32(),
         },
       ]);
     });

packages/google_maps_flutter/google_maps_flutter_platform_interface/test/types/heatmap_test.dart

@@ -303,7 +303,7 @@ void main() {
 
       expect(gradient.toJson(), <String, Object?>{
         'colors': colors
-            .map((HeatmapGradientColor e) => e.color.value)
+            .map((HeatmapGradientColor e) => e.color.toARGB32())
             .toList(),
         'startPoints': colors
             .map((HeatmapGradientColor e) => e.startPoint)