vnd.android.cursor.dir/calls

[1] CallLog.Calls | Android Developers (2015-06-09 14:20:13 +09:00 版) <http://developer.android.com/reference/android/provider/CallLog.Calls.html>

public static final String CONTENT_ITEM_TYPE
Added in API level 1
The MIME type of a CONTENT_URI sub-directory of a single call.
Constant Value: "vnd.android.cursor.item/calls"
public static final String CONTENT_TYPE
Added in API level 1
The MIME type of CONTENT_URI and CONTENT_FILTER_URI providing a directory of calls.
Constant Value: "vnd.android.cursor.dir/calls"