Flutter Admob AppID use Android or iOS?

问题

Silly question I'm sure, but when you make an AdMob app in the admob console, you have a choice of Android or iOS apps. That means 2 different IDs.

Which one should we use in Flutter admob plugin?

FirebaseAdMob.instance.initialize(appId: appId);

回答1:

How about setting as follows?

import 'dart:io';

  FirebaseAdMob.instance.initialize(
    appId: Platform.isAndroid
        ? 'ca-app-pub-NNNNNNNNNNNNNNNN~NNNNNNNNNN'
        : 'ca-app-pub-MMMMMMMMMMMMMMMM~MMMMMMMMMM',
  );

If you dislike conditional operators you can set as follows.

import 'dart:io';

  var appId;
  if (Platform.isAndroid) {
    appId = 'ca-app-pub-NNNNNNNNNNNNNNNN~NNNNNNNNNN';
  } else {
    appId = 'ca-app-pub-MMMMMMMMMMMMMMMM~MMMMMMMMMM';
  }
  FirebaseAdMob.instance.initialize(appId: appId);

来源：https://stackoverflow.com/questions/52021282/flutter-admob-appid-use-android-or-ios