ios - How to customize GKGameSession message notifications? -

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i can't figure out how customize gkgamesession message notifications, if it's possible. default notifications include snippet of text supply when sending message, result awkwardly worded, uses game center icon instead of app's icon, , plays annoying little jingle.

ideally, i'd modify gkgamesession message notifications notification content extension, when created 1 in app, not invoked.

any ideas? thanks.


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