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webView(_:identifierForInitialRequest:from:)

Returns an identifier object used to track the progress of loading a single resource.

Declaration

optional func webView(_ sender: WebView!, identifierForInitialRequest request: URLRequest!, from dataSource: WebDataSource!) -> Any!

Parameters

  • sender:

    The web view that sent this message.

  • request:

    The request that initiated this load for dataSource.

  • dataSource:

    The data source for this web view.

Return Value

An identifier object that is retained by sender and passed as a parameter to all other delegate messages pertaining to this resource.

Discussion

Delegates might implement this method to begin tracking the progress of loading an individual resource. Note that this method is invoked once per load where as the webView(_:resource:willSend:redirectResponse:from:) method may be invoked multiple times.

See Also

Related Documentation

  • WebKit Objective-C Programming Guide