flutter - 如何从 Flutter 应用程序访问 AppDelegate.m 中的 .env 变量？

Question

按照类似问题的指示 Hide Google Maps API key from source control in a Flutter app

AppDelegate.m

#include "AppDelegate.h"
#include "GeneratedPluginRegistrant.h"
#import "GoogleMaps/GoogleMaps.h"

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application
    didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
     NSString* mapsApiKey = [[NSProcessInfo processInfo] environment][@"FLUTTER_GMAPS_API_KEY"];
  [GMSServices provideAPIKey: mapsApiKey];
  [GeneratedPluginRegistrant registerWithRegistry:self];
  return [super application:application didFinishLaunchingWithOptions:launchOptions];
}

@end

如果我将 provideApiKey 更改为 @"theApiKeyImTryingToHide"一切正常。

Answer 1

我通过搜索 react-native lib 的答案发现了这个问题
也许对某人来说它可能有用。

因此，要从 RN 中的 env 读取变量，您必须添加

NSString *mapsApiKey = [ReactNativeConfig envFor:@"GOOGLE_MAPS_API_KEY"];
[GMSServices provideAPIKey: mapsApiKey];

进入顶部 didFinishLaunchingWithOptions 中的方法AppDelegate.m 文件
首先不要忘记导入
#import "ReactNativeConfig.h" ReactNativeConfig提供 GOOGLE_MAPS_API_KEY