Android keeps caching my intents Extras, how to declare a pending intent that keeps fresh extras?

If only one of your PendingIntents for this contact will be outstanding at any point in time, or if you always want to use the latest set of extras, use FLAG_UPDATE_CURRENT when you create the PendingIntent.

If more than one contact-specific PendingIntent will be outstanding at once, and they need to have separate extras, you will need to add a count or timestamp or something to distinguish them.

intent.setAction("actionstring" + System.currentTimeMillis());

UPDATE

Also, the lightly-documented second parameter to getActivity() and kin on PendingIntent apparently can be used to create distinct PendingIntent objects for the same underlying Intent, though I have never tried this.