关于Android URI 的一点困惑与解答

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<provider android:name="NotePadProvider"

            android:authorities="com.google.provider.NotePad"

        />

 

public final Cursor managedQuery (Uri uri, String[] projection, String selection, String[] selectionArgs,String sortOrder)

Since: API Level 1

Wrapper around query(android.net.Uri, String[], String, String[], String) that gives the resulting Cursor to callstartManagingCursor(Cursor) so that the activity will manage its lifecycle for you.

Parameters

uriThe URI of the content provider to query.projectionList of columns to return.selectionSQL WHERE clause.selectionArgsThe arguments to selection, if any ?s are pesentsortOrderSQL ORDER BY clause.

Returns

• The Cursor that was returned by query().

See Also

• query(android.net.Uri, String[], String, String[], String)
• startManagingCursor(Cursor)