Interface definition for a callback to be invoked when the value of this
Preference has been changed by the user and is about to be set and/or persisted. This gives the client a chance to prevent setting and/or persisting the value.
abstract fun onPreferenceChange(
Called when a preference has been changed by the user. This is called before the state of the preference is about to be updated and before the state is persisted.
|Preference!: The changed preference
|Any!: The new value of the preference
true to update the state of the preference with the new value