[google_maps_flutter] Updates platform interface to new analysis options (flutter#5793)

Author: stuartmorgan-g

analysis_options.yaml

@@ -2,10 +2,6 @@
 # with minimal changes for this repository. The goal is to move toward using a
 # shared set of analysis options as much as possible, and eventually a shared
 # file.
-#
-# Plugins that have not yet switched from the previous set of options have a
-# local analysis_options.yaml that points to analysis_options_legacy.yaml
-# instead.
 
 # Specify analysis options.
 #

analysis_options_legacy.yaml

@@ -1,5 +1,6 @@
-## NEXT
+## 2.1.7
 
+* Updates code for stricter analysis options.
 * Removes unnecessary imports.
 
 ## 2.1.6

packages/google_maps_flutter/google_maps_flutter_platform_interface/CHANGELOG.md

@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+export 'src/events/map_event.dart';
 export 'src/method_channel/method_channel_google_maps_flutter.dart'
     show MethodChannelGoogleMapsFlutter;
 export 'src/platform_interface/google_maps_flutter_platform.dart';
 export 'src/types/types.dart';
-export 'src/events/map_event.dart';

packages/google_maps_flutter/google_maps_flutter_platform_interface/analysis_options.yaml

@@ -34,29 +34,29 @@ import 'package:google_maps_flutter_platform_interface/google_maps_flutter_platf
 /// events to access the `.position` property, rather than the more generic `.value`
 /// yielded from the latter.
 class MapEvent<T> {
-  /// The ID of the Map this event is associated to.
-  final int mapId;
-
-  /// The value wrapped by this event
-  final T value;
-
   /// Build a Map Event, that relates a mapId with a given value.
   ///
   /// The `mapId` is the id of the map that triggered the event.
   /// `value` may be `null` in events that don't transport any meaningful data.
   MapEvent(this.mapId, this.value);
+
+  /// The ID of the Map this event is associated to.
+  final int mapId;
+
+  /// The value wrapped by this event
+  final T value;
 }
 
 /// A `MapEvent` associated to a `position`.
 class _PositionedMapEvent<T> extends MapEvent<T> {
-  /// The position where this event happened.
-  final LatLng position;
-
   /// Build a Positioned MapEvent, that relates a mapId and a position with a value.
   ///
   /// The `mapId` is the id of the map that triggered the event.
   /// `value` may be `null` in events that don't transport any meaningful data.
   _PositionedMapEvent(int mapId, this.position, T value) : super(mapId, value);
+
+  /// The position where this event happened.
+  final LatLng position;
 }
 
 // The following events are the ones exposed to the end user. They are semantic extensions

packages/google_maps_flutter/google_maps_flutter_platform_interface/lib/google_maps_flutter_platform_interface.dart

@@ -27,11 +27,12 @@ class UnknownMapIDError extends Error {
   /// Message describing the assertion error.
   final Object? message;
 
+  @override
   String toString() {
     if (message != null) {
-      return "Unknown map ID $mapId: ${Error.safeToString(message)}";
+      return 'Unknown map ID $mapId: ${Error.safeToString(message)}';
     }
-    return "Unknown map ID $mapId";
+    return 'Unknown map ID $mapId';
   }
 }
 
@@ -48,19 +49,20 @@ class UnknownMapIDError extends Error {
 class MethodChannelGoogleMapsFlutter extends GoogleMapsFlutterPlatform {
   // Keep a collection of id -> channel
   // Every method call passes the int mapId
-  final Map<int, MethodChannel> _channels = {};
+  final Map<int, MethodChannel> _channels = <int, MethodChannel>{};
 
   /// Accesses the MethodChannel associated to the passed mapId.
   MethodChannel channel(int mapId) {
-    MethodChannel? channel = _channels[mapId];
+    final MethodChannel? channel = _channels[mapId];
     if (channel == null) {
       throw UnknownMapIDError(mapId);
     }
     return channel;
   }
 
   // Keep a collection of mapId to a map of TileOverlays.
-  final Map<int, Map<TileOverlayId, TileOverlay>> _tileOverlays = {};
+  final Map<int, Map<TileOverlayId, TileOverlay>> _tileOverlays =
+      <int, Map<TileOverlayId, TileOverlay>>{};
 
   /// Returns the channel for [mapId], creating it if it doesn't already exist.
   @visibleForTesting
@@ -77,7 +79,7 @@ class MethodChannelGoogleMapsFlutter extends GoogleMapsFlutterPlatform {
 
   @override
   Future<void> init(int mapId) {
-    MethodChannel channel = ensureChannelInitialized(mapId);
+    final MethodChannel channel = ensureChannelInitialized(mapId);
     return channel.invokeMethod<void>('map#waitForMap');
   }
 
@@ -91,12 +93,13 @@ class MethodChannelGoogleMapsFlutter extends GoogleMapsFlutterPlatform {
   //
   // It is a `broadcast` because multiple controllers will connect to
   // different stream views of this Controller.
-  final StreamController<MapEvent> _mapEventStreamController =
-      StreamController<MapEvent>.broadcast();
+  final StreamController<MapEvent<Object?>> _mapEventStreamController =
+      StreamController<MapEvent<Object?>>.broadcast();
 
   // Returns a filtered view of the events in the _controller, by mapId.
-  Stream<MapEvent> _events(int mapId) =>
-      _mapEventStreamController.stream.where((event) => event.mapId == mapId);
+  Stream<MapEvent<Object?>> _events(int mapId) =>
+      _mapEventStreamController.stream
+          .where((MapEvent<Object?> event) => event.mapId == mapId);
 
   @override
   Stream<CameraMoveStartedEvent> onCameraMoveStarted({required int mapId}) {
@@ -180,52 +183,52 @@ class MethodChannelGoogleMapsFlutter extends GoogleMapsFlutterPlatform {
       case 'marker#onTap':
         _mapEventStreamController.add(MarkerTapEvent(
           mapId,
-          MarkerId(call.arguments['markerId']),
+          MarkerId(call.arguments['markerId'] as String),
         ));
         break;
       case 'marker#onDragStart':
         _mapEventStreamController.add(MarkerDragStartEvent(
           mapId,
           LatLng.fromJson(call.arguments['position'])!,
-          MarkerId(call.arguments['markerId']),
+          MarkerId(call.arguments['markerId'] as String),
         ));
         break;
       case 'marker#onDrag':
         _mapEventStreamController.add(MarkerDragEvent(
           mapId,
           LatLng.fromJson(call.arguments['position'])!,
-          MarkerId(call.arguments['markerId']),
+          MarkerId(call.arguments['markerId'] as String),
         ));
         break;
       case 'marker#onDragEnd':
         _mapEventStreamController.add(MarkerDragEndEvent(
           mapId,
           LatLng.fromJson(call.arguments['position'])!,
-          MarkerId(call.arguments['markerId']),
+          MarkerId(call.arguments['markerId'] as String),
         ));
         break;
       case 'infoWindow#onTap':
         _mapEventStreamController.add(InfoWindowTapEvent(
           mapId,
-          MarkerId(call.arguments['markerId']),
+          MarkerId(call.arguments['markerId'] as String),
         ));
         break;
       case 'polyline#onTap':
         _mapEventStreamController.add(PolylineTapEvent(
           mapId,
-          PolylineId(call.arguments['polylineId']),
+          PolylineId(call.arguments['polylineId'] as String),
         ));
         break;
       case 'polygon#onTap':
         _mapEventStreamController.add(PolygonTapEvent(
           mapId,
-          PolygonId(call.arguments['polygonId']),
+          PolygonId(call.arguments['polygonId'] as String),
         ));
         break;
       case 'circle#onTap':
         _mapEventStreamController.add(CircleTapEvent(
           mapId,
-          CircleId(call.arguments['circleId']),
+          CircleId(call.arguments['circleId'] as String),
         ));
         break;
       case 'map#onTap':
@@ -243,17 +246,17 @@ class MethodChannelGoogleMapsFlutter extends GoogleMapsFlutterPlatform {
       case 'tileOverlay#getTile':
         final Map<TileOverlayId, TileOverlay>? tileOverlaysForThisMap =
             _tileOverlays[mapId];
-        final String tileOverlayId = call.arguments['tileOverlayId'];
+        final String tileOverlayId = call.arguments['tileOverlayId'] as String;
         final TileOverlay? tileOverlay =
             tileOverlaysForThisMap?[TileOverlayId(tileOverlayId)];
-        TileProvider? tileProvider = tileOverlay?.tileProvider;
+        final TileProvider? tileProvider = tileOverlay?.tileProvider;
         if (tileProvider == null) {
           return TileProvider.noTile.toJson();
         }
         final Tile tile = await tileProvider.getTile(
-          call.arguments['x'],
-          call.arguments['y'],
-          call.arguments['zoom'],
+          call.arguments['x'] as int,
+          call.arguments['y'] as int,
+          call.arguments['zoom'] as int?,
         );
         return tile.toJson();
       default:
@@ -330,7 +333,7 @@ class MethodChannelGoogleMapsFlutter extends GoogleMapsFlutterPlatform {
   }) {
     final Map<TileOverlayId, TileOverlay>? currentTileOverlays =
         _tileOverlays[mapId];
-    Set<TileOverlay> previousSet = currentTileOverlays != null
+    final Set<TileOverlay> previousSet = currentTileOverlays != null
         ? currentTileOverlays.values.toSet()
         : <TileOverlay>{};
     final TileOverlayUpdates updates =
@@ -380,9 +383,9 @@ class MethodChannelGoogleMapsFlutter extends GoogleMapsFlutterPlatform {
   }) async {
     final List<dynamic> successAndError = (await channel(mapId)
         .invokeMethod<List<dynamic>>('map#setStyle', mapStyle))!;
-    final bool success = successAndError[0];
+    final bool success = successAndError[0] as bool;
     if (!success) {
-      throw MapStyleException(successAndError[1]);
+      throw MapStyleException(successAndError[1] as String);
     }
   }
 
@@ -418,7 +421,7 @@ class MethodChannelGoogleMapsFlutter extends GoogleMapsFlutterPlatform {
     final List<dynamic> latLng = (await channel(mapId)
         .invokeMethod<List<dynamic>>(
             'map#getLatLng', screenCoordinate.toJson()))!;
-    return LatLng(latLng[0], latLng[1]);
+    return LatLng(latLng[0] as double, latLng[1] as double);
   }
 
   @override

packages/google_maps_flutter/google_maps_flutter_platform_interface/lib/src/events/map_event.dart

@@ -5,12 +5,11 @@
 import 'dart:async';
 import 'dart:typed_data';
 
-import 'package:flutter/widgets.dart';
-import 'package:flutter/services.dart';
-import 'package:flutter/material.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/gestures.dart';
-
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter/widgets.dart';
 import 'package:google_maps_flutter_platform_interface/google_maps_flutter_platform_interface.dart';
 import 'package:plugin_platform_interface/plugin_platform_interface.dart';
 
@@ -359,8 +358,8 @@ abstract class GoogleMapsFlutterPlatform extends PlatformInterface {
     Set<TileOverlay> tileOverlays = const <TileOverlay>{},
     Set<Factory<OneSequenceGestureRecognizer>>? gestureRecognizers =
         const <Factory<OneSequenceGestureRecognizer>>{},
-    // TODO: Replace with a structured type that's part of the interface.
-    // See https://github.com/flutter/flutter/issues/70330.
+    // TODO(stuartmorgan): Replace with a structured type that's part of the
+    // interface. See https://github.com/flutter/flutter/issues/70330.
     Map<String, dynamic> mapOptions = const <String, dynamic>{},
   }) {
     throw UnimplementedError('buildView() has not been implemented.');