CODEWITHSUNDEEP
swiftuitableview
ankermarco
ankermarco

Reputation: 43

Dynamically load data uitableview swift

I am building a single viewcontroller app using UITableViewController in Swift 2.

The problem I am having here is if I load data inside viewDidLoad function, the UITableView displays well with the data.

However, I am trying to have get this data from a custom delegate method, which is called after the data is saved into core data, then self.tableview.reloadData() the UITableView won't display the data.

From my debugging, looks like the override func numberOfSectionsInTableView(tableView: UITableView) -> Int and override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell

run before my custom delegate method 

func didReceiveQualifications(qualifications: [Qualification]) {   
    print("didReceivedQualifications")
    self.qualifications = qualifications

    // Pass qualification to view
    self.tableView.reloadData()

}

Upvotes: 4

Views: 625

Answers (1)

Alessandro Ornano
Alessandro Ornano

Reputation: 35392

It can be depend by where didReceiveQualifications() has launched..in which thread running..

All updates to the UI should be done in the main thread.

Try to make reloadData to the main thread:

func didReceiveQualifications(qualifications: [Qualification]) {   
    print("didReceivedQualifications")
    self.qualifications = qualifications

    // Pass qualification to view
    dispatch_async(dispatch_get_main_queue()) {
        self.tableView.reloadData()
    }
}

Upvotes: 1

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