An action block that deletes content in another app, such as contacts or calendar events.
The fiber will pause until the content has been deleted.
Note! Only the “default messaging app” can modify
content://mms-sms URI’s on Android 4.4+.
Caution! This is advanced feature and should only be used with knowledge of the content structure, may result in loss of or corrupt data.
WHERE clause for matching a sub-selection of the content identified by Content URI, default is all content.
? within the where clause.