packages/google_maps_flutter/ios/Classes/GoogleMapsPlugin.m

// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#import "GoogleMapsPlugin.h"

#pragma mark - GoogleMaps plugin implementation

@implementation FLTGoogleMapsPlugin {
  NSObject<FlutterPluginRegistrar>* _registrar;
  FlutterMethodChannel* _channel;
  NSMutableDictionary* _mapControllers;
}

+ (void)registerWithRegistrar:(NSObject<FlutterPluginRegistrar>*)registrar {
  FLTGoogleMapFactory* googleMapFactory = [[FLTGoogleMapFactory alloc] initWithRegistrar:registrar];
  [registrar registerViewFactory:googleMapFactory withId:@"plugins.flutter.io/google_maps"];
}

- (FLTGoogleMapController*)mapFromCall:(FlutterMethodCall*)call error:(FlutterError**)error {
  id mapId = call.arguments[@"map"];
  FLTGoogleMapController* controller = _mapControllers[mapId];
  if (!controller && error) {
    *error = [FlutterError errorWithCode:@"unknown_map" message:nil details:mapId];
  }
  return controller;
}
@end