iOS 14 Programming for Beginners Fifth Edition by Ahmad Sahar

iOS 14 Programming for Beginners Fifth Edition by Ahmad Sahar

Author:Ahmad Sahar
Language: eng
Format: epub, mobi
Publisher: Packt Publishing Pvt Ltd
Published: 2020-11-25T00:00:00+00:00


Inside viewDidLoad(), fetch the data for the table view by adding the following statement under super.viewDidLoad():manager.fetch()

Verify that viewDidLoad() looks like this:override func viewDidLoad() {

super.viewDidLoad()

manager.fetch()

}

Modify tableView(_:numberOfRowsInSection:) so it can get the number of rows to display in the table view from manager:func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int{

manager.numberOfItems()

}

Modify tableView(_:cellForRowAt:) as shown to make the table view display a string containing the city and state in every table view cell:func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

let cell = tableView. dequeueReusableCell(withIdentifier: "locationCell", for: indexPath)

cell.textLabel?.text = manager. locationItem(at:indexPath)

return cell

}

This sets the text property of the table view cell's textLabel to the corresponding element in the locations array. indexPath returns the section and row number of a particular row in a table view. For example, the first row has an indexPath containing section 0 and row 0. indexPath.row returns 0 for the first row, so manager returns the string stored at index 0 in the locations array. This string is then assigned to the text property of the first table view cell's textLabel.



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