liorkup

//Remote Config Solution
public class MainActivity extends AppCompatActivity {

    // Remote Config Parameter Key
    public static Map<String, String> RC_KEY_TO_EVENT_MAP;
    static {
        RC_KEY_TO_EVENT_MAP = new HashMap<>();
        RC_KEY_TO_EVENT_MAP.put("rc_retention", "p_retention");
        RC_KEY_TO_EVENT_MAP.put("rc_complete_level_3", "p_complete_level_3");
        RC_KEY_TO_EVENT_MAP.put("rc_complete_level_5", "p_complete_level_5");

liorkup

//InstanceId solution
public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        prefs = getSharedPreferences("com.mycompany.myAppName", MODE_PRIVATE);
        setContentView(R.layout.activity_main);
    
    }

liorkup

                                 Apache License
                           Version 2.0, January 2004
                        http://www.apache.org/licenses/

   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

   1. Definitions.

      "License" shall mean the terms and conditions for use, reproduction,

liorkup

import Firebase
...
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        ...
        FirebaseApp.configure()

        if !UserDefaults.standard.bool(forKey: "launchedBefore")
        {
            UserDefaults.standard.set(true, forKey: "launchedBefore")
            GoogleAdsACService.app.adToAction(processAction: processActionExample)