ContactsContract.DataUsageFeedback

Class Overview

API allowing applications to send usage information for each ContactsContract.Contacts.Data row to the Contacts Provider. Applications can also clear all usage information.

With the feedback, Contacts Provider may return more contextually appropriate results for Data listing, typically supplied with CONTENT_FILTER_URI, CONTENT_FILTER_URI, CONTENT_FILTER_URI, and users can benefit from better ranked (sorted) lists in applications that show auto-complete list.

There is no guarantee for how this feedback is used, or even whether it is used at all. The ranking algorithm will make best efforts to use the feedback data, but the exact implementation, the storage data structures as well as the resulting sort order is device and version specific and can change over time.

When updating usage information, users of this API need to use update(Uri, ContentValues, String, String[]) with a Uri constructed from FEEDBACK_URI. The Uri must contain one or more data id(s) as its last path. They also need to append a query parameter to the Uri, to specify the type of the communication, which enables the Contacts Provider to differentiate between kinds of interactions using the same contact data field (for example a phone number can be used to make phone calls or send SMS).

Selection and selectionArgs are ignored and must be set to null. To get data ids, you may need to call query(Uri, String[], String, String[], String) toward CONTENT_URI.

update(Uri, ContentValues, String, String[]) returns a positive integer when successful, and returns 0 if no contact with that id was found.

Example:

 Uri uri = DataUsageFeedback.FEEDBACK_URI.buildUpon()
         .appendPath(TextUtils.join(",", dataIds))
         .appendQueryParameter(DataUsageFeedback.USAGE_TYPE,
                 DataUsageFeedback.USAGE_TYPE_CALL)
         .build();
 boolean successful = resolver.update(uri, new ContentValues(), null, null) > 0;
 

Applications can also clear all usage information with:

 boolean successful = resolver.delete(DataUsageFeedback.DELETE_USAGE_URI, null, null) > 0;
 

Summary

[Expand] Inherited Methods

From class java.lang.Object Object clone() Creates and returns a copy of this Object. boolean equals(Object o) Compares this instance with the specified object and indicates if they are equal. void finalize() Invoked when the garbage collector has detected that this instance is no longer reachable. final Class<?> getClass() Returns the unique instance of Class that represents this object's class. int hashCode() Returns an integer hash code for this object. final void notify() Causes a thread which is waiting on this object's monitor (by means of calling one of the wait() methods) to be woken up. final void notifyAll() Causes all threads which are waiting on this object's monitor (by means of calling one of the wait() methods) to be woken up. String toString() Returns a string containing a concise, human-readable description of this object. final void wait() Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object. final void wait(long millis, int nanos) Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the specified timeout expires. final void wait(long millis) Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the specified timeout expires.