OneSignal.appContext null, could not read OneSignal from getSharedPreferences.

[vijayawoshe]

Description:
I am facing the following issue with version 2.2.0.
Could you please help me on this issue. its urgent.

OneSignal.appContext null, could not read OneSignal from getSharedPreferences.
W/OneSignal(  966): java.lang.Throwable
W/OneSignal(  966): 	at com.onesignal.OneSignalPrefs.getSharedPrefsByName(OneSignalPrefs.java:279)
W/OneSignal(  966): 	at com.onesignal.OneSignalPrefs.get(OneSignalPrefs.java:255)
W/OneSignal(  966): 	at com.onesignal.OneSignalPrefs.getBool(OneSignalPrefs.java:223)
W/OneSignal(  966): 	at com.onesignal.OneSignal.getSavedUserConsentStatus(OneSignal.java:2170)
W/OneSignal(  966): 	at com.onesignal.OneSignal.userProvidedPrivacyConsent(OneSignal.java:769)
W/OneSignal(  966): 	at com.onesignal.OneSignal.requiresUserPrivacyConsent(OneSignal.java:1060)
W/OneSignal(  966): 	at com.onesignal.flutter.OneSignalPlugin.onMethodCall(OneSignalPlugin.java:92)
W/OneSignal(  966): 	at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(MethodChannel.java:231)
W/OneSignal(  966): 	at io.flutter.embedding.engine.dart.DartMessenger.handleMessageFromDart(DartMessenger.java:93)
W/OneSignal(  966): 	at io.flutter.embedding.engine.FlutterJNI.handlePlatformMessage(FlutterJNI.java:642)
W/OneSignal(  966): 	at android.os.MessageQueue.nativePollOnce(Native Method)
W/OneSignal(  966): 	at android.os.MessageQueue.next(MessageQueue.java:336)
W/OneSignal(  966): 	at android.os.Looper.loop(Looper.java:174)
W/OneSignal(  966): 	at android.app.ActivityThread.main(ActivityThread.java:7356)
W/OneSignal(  966): 	at java.lang.reflect.Method.invoke(Native Method)
W/OneSignal(  966): 	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
W/OneSignal(  966): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
I/flutter (  966): Check Connection...
E/OneSignal(  966): Cannot change requiresUserPrivacyConsent() from TRUE to FALSE

Environment
onesignal_flutter: 2.2.0

Steps to Reproduce Issue:

 static var settings = {
    OSiOSSettings.autoPrompt: false,
    OSiOSSettings.promptBeforeOpeningPushUrl: true,
    OSiOSSettings.inAppLaunchUrl: true
  };

  static initOneSignal() async {
    print("___________________INIT ONE SIGNAL________________________");
    await OneSignal.shared.setRequiresUserPrivacyConsent(true);
    await OneSignal.shared.init(ONESIGNAL_APP_ID, iOSSettings: settings);
    OneSignal.shared.setLogLevel(OSLogLevel.verbose, OSLogLevel.none);

Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel unknown, v1.11.0, on Mac OS X 10.15.1 19B88, locale en-GB)
 
[!] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
    ✗ Android license status unknown.
      Try re-installing or updating your Android SDK Manager.
      See https://developer.android.com/studio/#downloads or visit https://flutter.dev/setup/#android-setup for detailed instructions.
[✓] Xcode - develop for iOS and macOS (Xcode 11.2.1)
[✓] Android Studio (version 3.5)
[✓] VS Code (version 1.40.1)
[✓] Connected device (1 available)

[jkasten2]

@vijayawoshe Thanks for reporting.

The following you are seeing the in the log is a warning not an error.
OneSignal.appContext null, could not read OneSignal from getSharedPreferences.
It is something we can look into cleaning up in the future.

The following is an error in your code however.
E/OneSignal( 966): Cannot change requiresUserPrivacyConsent() from TRUE to FALSE

Can you search your app for other places where you are calling OneSignal.shared.setRequiresUserPrivacyConsent? It seems some where you are passing false to this somewhere.
Note, if the user accepts your privacy policy you should call OneSignal.shared.consentGranted(true)

[vijayawoshe]

Hello @jkasten2 ,

I checked in my application, I am not calling setRequiresUserPrivacyConsent with false anywhere. I am just calling this method with true on app init.

I dont know why I am still getting this message.

Could you please help?

Thanks

Regards
Vijay

[rgomezp]

Howdy Vijay,
Sorry for the delay. Were you able to resolve?

[enricobenedos]

I'm experiencing the same problem in a new project. The very strange thing is that if you use only an iOS device, this debug line is not printed.
Cannot change requiresUserPrivacyConsent() from TRUE to FALSE
This my one signal package init code:

    //Remove this method to stop OneSignal Debugging
    OneSignal.shared.setLogLevel(OSLogLevel.verbose, OSLogLevel.none);
    //Configuring OneSignal SDK
    OneSignal.shared.init("myAppId", iOSSettings: {
      OSiOSSettings.autoPrompt: false,
      OSiOSSettings.inAppLaunchUrl: false
    });
    OneSignal.shared
        .setInFocusDisplayType(OSNotificationDisplayType.notification);
    OneSignal.shared.setRequiresUserPrivacyConsent(true);

an this is the code I use to switch between notifications on or off:

onChanged: (bool value) async {
                    //Check if user has accepted privacy policy about notifications
                    final bool requiredPrivacy =
                        await OneSignal.shared.requiresUserPrivacyConsent();

                    if (requiredPrivacy) {
                      //TODO: improve dialog to include images and privacy policy
                      final result = await GlobalMethods.showChooseDialog(
                          context,
                          'Enable Notifications',
                          'Do you really want to enable notifications?');
                      if (result) {
                        await OneSignal.shared
                            .consentGranted(true);
                        if (Platform.isIOS) {
                          await OneSignal.shared
                              .promptUserForPushNotificationPermission(
                                  fallbackToSettings: true);
                        }
                      }
                    }

                    final bool requiredPrivacy2 =
                        await OneSignal.shared.requiresUserPrivacyConsent();
                    if (!requiredPrivacy2) {
                      await OneSignal.shared
                          .setSubscription(!_notificationsEnabled);

                      setState(() {
                        _notificationsEnabled = !_notificationsEnabled;
                      });
                    }
                  },

[Lawati97]

Same here it happens only if the user has not registered to One Signal before and it is the first time using the application

[Lawati97]

E/OneSignal(16100): Cannot change requiresUserPrivacyConsent() from TRUE to FALSE
W/OneSignal(16100): appContext set, but please call setAppId(appId) with a valid appId to complete OneSignal init!

[nan-li]

Hi @vijayawoshe @enricobenedos @Lawati97, sorry for the delayed response.

This log is a logging mistake in Android and can be safely ignored if it does not apply to you.

Cannot change requiresUserPrivacyConsent() from TRUE to FALSE

There was a fix to clean up this confusing log message in OneSignal/OneSignal-Android-SDK#1527 and released with the OneSignal-Flutter-SDK 3.3.0.

As for this warning log:

appContext set, but please call setAppId(appId) with a valid appId to complete OneSignal init!

This can be safely ignored as well. It is printed by the native OneSignal-Android-SDK as it goes through the initialization process.