I have created a Share extension which working fine while I am running it though xcode on device or simulator. But when I creating IPA or using TestFlight, it is not passing my list from host app to extension.
I am creating this extension for posting an image in host app ( without uploading on server just in local sqlite ). For this I have checked, App Group and it is fine, cross checked the provisioning certificate and it is also attached with app group.
If you have any idea please let me know.
The entitlement file needs to have the group id information and same should be reflected in build settings.
For me it was just that entitlement file was missing from build settings under code signing entitlements for release.
In debug the app does not require entitlement file.
来源：https://stackoverflow.com/questions/42703948/ios-share-extension-not-working-after-deploy