How to Check and Enable "Allow In-App Notifications", "Notification Popups", and "Notification Sound" in Flutter?

Question

I want to check and enable the following notification settings in my Flutter app:

1. Allow In-App Notifications

2. Notification Popups (Heads-Up Notifications)

3. Notification Sound

What I’ve Tried:

• I used the permission_handler package, but it only provides Permission.notification, which doesn't separately control these settings.

• I searched for Flutter plugins but couldn’t find any that check or enable these settings individually.

Expected Behavior:

• I want to check if each of these settings is enabled/disabled.

• If disabled, I want to enable it programmatically or guide the user to the settings page.

Platform Details:

• Android: Need to check and enable notification importance, popups, and sound settings.

• iOS: Need to check and request notification permissions.

Questions:

1. How can I check if these settings are enabled in Flutter?

2. If Flutter does not support this, how can I achieve this natively in Android (Kotlin) and iOS (Swift)?

3. If it’s not possible to enable these settings programmatically, how can I redirect the user to the correct settings page?

Any guidance or code examples would be greatly appreciated. Thanks!