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Request

It would be really useful to be able to specify a suiteName in SharedPreferences' iOS implementation.

Usages

For example, if we want to create Widgets on iOS, the Widget uses a different NSUserDefaults environment than the main app, which makes it impossible to access the widget's settings from our Flutter App and back. Having the ability to specify a suiteName effectively allows us access a same App Group and thus persist data between the twos.

Here is a my PR solving this issue : flutter/plugins#2861

More

More resources on the issue : Stack overflow question treating about App Groups