Instance Method

enumerateResults(_:)

Enumerates the current set of results using the given block.

Declaration

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

Parameters

block

The block to execute for each current result.

Discussion

This method disables the query at the start of the iteration and reenables it upon completion. Use enumerateResults(options:using:) if you want to use concurrent or reverse iteration.

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 result(at: Int)

Returns the query result at a specific index.

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.

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.