How to resolve “Missing PendingIntent mutability flag” lint warning in android api 30+?

by

You can set your pending intent as

val updatedPendingIntent = PendingIntent.getActivity(
   applicationContext,
   NOTIFICATION_REQUEST_CODE,
   updatedIntent,
   PendingIntent.FLAG_IMMUTABLE or PendingIntent.FLAG_UPDATE_CURRENT // setting the mutability flag 
)

According to the docs here: https://developer.android.com/about/versions/12/behavior-changes-12#pending-intent-mutability

Strongly consider using FLAG_IMMUTABLE, only use FLAG_MUTABLE if
some functionality depends on the PendingIntent being mutable, e.g. if
it needs to be used with inline replies or bubbles.

Choose your flag accordingly.

If you want to read more about this i would suggest that you read this great article here: https://medium.com/androiddevelopers/all-about-pendingintents-748c8eb8619

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