Instance Method

result(at:)

Returns the query result at a specific index.

Declaration

func result(at idx: Int) -> Any

Parameters

index

The index of the desired result in the query result array.

Return Value

The query result at the position specified by index. By default, this method returns an NSMetadataItem object representing the requested result; however, the query’s delegate can substitute this object with an instance of a different class.

Discussion

For performance reasons, use this method when retrieving a specific result, rather than the array returned by results.

See Also

Getting Query Results

var results: [Any]

An array containing the query’s results.

var resultCount: Int

The number of results returned by the query. (read-only)

func index(ofResult: Any)

Returns the index of a query result object in the receiver’s results array.

var groupedResults: [NSMetadataQueryResultGroup]

An array containing hierarchical groups of query results. (read-only)

class NSMetadataQueryResultGroup

The NSMetadataQueryResultGroup class represents a collection of grouped attribute results returned by an NSMetadataQuery object.

func enumerateResults((Any, Int, UnsafeMutablePointer<ObjCBool>) -> Void)

Enumerates the current set of results using the given block.

var valueLists: [String : [NSMetadataQueryAttributeValueTuple]]

A dictionary containing the value lists generated by the query.

class NSMetadataQueryAttributeValueTuple

The NSMetadataQueryAttributeValueTuple class represents attribute-value tuples, which are objects that contain the attribute name and value of a metadata attribute.

func value(ofAttribute: String, forResultAt: Int)

Returns the value for the attribute name attrName at the index in the results specified by idx.

func enableUpdates()

Enables updates to the query results.

func disableUpdates()

Disables updates to the query results.

var operationQueue: OperationQueue?

The queue on which query result notifications are posted.