Question 252229 in Flutter Question posted in
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Dart/Flutter: Custom Action Error The getter 'shared' isn't defined for the type

I am breaking my head over this error. I am humbly reaching out for some help.

I keep receiving the error below. However, in the examples listed on the GitHub repo (here: https://github.com/OneSignal/OneSignal-Flutter-SDK/blob/main/example/lib/main.dart), the .shared getter properties are shown. I am using the OneSignal Fluuter package (onesignal_flutter: ^5.0.1) https://pub.dev/packages/onesignal_flutter

The getter 'shared' isn't defined for the type 'OneSignal'. Try importing the library that defines 'shared', correcting the name to the name of an existing getter, or defining a getter or field named 'shared'.

What am I doing wrong?

Here is the action in which I am trying to implement:

InitOneSignal

import 'package:onesignal_flutter/onesignal_flutter.dart';

Future<void> initOneSignal() async {
  // Set the log level for debugging (optional)
  OneSignal.shared.setLogLevel(OSLogLevel.verbose);

  // Initialize OneSignal with your App ID
  await OneSignal.shared.init(
    "API_KEY", // Replace with your OneSignal App ID
    iOSSettings: {
      OSiOSSettings.autoPrompt:
          false, // Set to true if you want the default iOS prompt
      OSiOSSettings.inAppLaunchUrl: true,
    },
  );

  // Request permission from the user for notifications
  final status = await OneSignal.shared.getPermissionSubscriptionState();
  if (status.permissionStatus.status != OSNotificationPermission.authorized) {
    // Handle the case where notification permission is not authorized.
    // You can show a dialog or perform any other desired action here.
    // For example, you can request permission again or inform the user about the need for notifications.
  }
}

 

Thanks in advance!

Tags:

2

Answers


  1. 0

    This is due to the 5.0.0 release (see). It seems like the example on GitHub was created before that release.

    Please take a look at the OneSignal example on pub.dev it uses a version above 5.0.0.

    There you can see that the setLogLevel method should be: OneSignal.Debug.setLogLevel(OSLogLevel.verbose) and the init method should be OneSignal.initialize

    Edit: I have opened an issue on GitHub, to get the mismatch resolved

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  2. 0

    The error message "The getter ‘shared’ isn’t defined for the type ‘OneSignal’" means that the OneSignal Flutter package does not have a getter named shared. This is because the shared getter was removed in version 5.0.0 of the package.

    To fix this error, you need to change your code to use the new OneSignal singleton class instead of the shared getter. For example:

    import 'package:onesignal_flutter/onesignal_flutter.dart';
 Future<void> initOneSignal() async {
 // Set the log level for debugging (optional)
 OneSignal().setLogLevel(OSLogLevel.verbose);

 // Initialize OneSignal with your App ID
 await OneSignal().init(
 "API_KEY", // Replace with your OneSignal App ID
 iOSSettings: {
  OSiOSSettings.autoPrompt:
      false, // Set to true if you want the default iOS prompt
  OSiOSSettings.inAppLaunchUrl: true,
 },
);

 // Request permission from the user for notifications
 final status = await OneSignal().getPermissionSubscriptionState();
 if (status.permissionStatus.status != 
  OSNotificationPermission.authorized) {
  // Handle the case where notification permission is not authorized.
  // You can show a dialog or perform any other desired action here.
  // For example, you can request permission again or inform the user 
 about the need for notifications.
}
   }

    The OneSignal() singleton class is the same as the shared getter, except that it does not require you to import the onesignal_flutter package. This can be useful if you are using multiple packages that depend on the OneSignal Flutter package.

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