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i need to refresh my table view and i m using this code .<br />
&nbsp;refresher = UIRefreshControl()<br />
&nbsp; &nbsp; &nbsp; &nbsp; refresher.attributedTitle = NSAttributedString(string:<wbr /> &quot;pull to refresh&quot;)<br />
&nbsp; &nbsp; &nbsp; &nbsp; refresher.addTarget(self, action: #selector(UITableViewContr<wbr />oller.popu<wbr />late), for: UIControlEvents.valueChang<wbr />ed)<br />
&nbsp; &nbsp; &nbsp; &nbsp; tableview.addSubview(refre<wbr />sher)<br />
<br />
In this it is not taking the UITableviewcontoller .its saying error like<br />
&nbsp;&quot;Type 'UITableViewController' has no member 'populate'&quot;
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i need to refresh my table view and i m using this code .
 refresher = UIRefreshControl()
        refresher.attributedTitle = NSAttributedString(string: "pull to refresh")
        refresher.addTarget(self, action: #selector(UITableViewController.populate), for: UIControlEvents.valueChanged)
        tableview.addSubview(refresher)

In this it is not taking the UITableviewcontoller .its saying error like
 "Type 'UITableViewController' has no member 'populate'"

i need to add a refresher to the application

iOS is a mobile operating system developed by Apple; it is a derivative of the Mac OS X desktop operating system, with which it shares many (but not all) common frameworks and other components. These include Cocoa Touch, the Mach/Darwin/XNU kernel and code from the Berkeley Software Distribution (BSD). Each iOS application runs in its own secure sandbox to prevent altering other applications, the operating system, or any other data.