Type 'ViewController' does not conform to protocol 'UITableViewDataSource'

Question

Started practice swift. In singleViewController I am trying to make a UITableView. In storyboard I set the datasource and delegate. Here I am getting the error

Answer 1

I had the same problem, things would workout rather easily in Objective-C, probably because we are more familiar with it at the moment, but in this case, swift is very new, therefore, the its error notifications are rather vague.

While I was implementing the UITableView based application, and I ran into this problem. I opened up the implementation file for UITableView by pressing command and clicking on UITableView. In implementation file, we can clearly see that two functions are mandatory to implement,

1. func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int
2. func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell

I arrived at this post and started to put things together while keeping my meager knowledge of objective-C programming in mind. Reason for the error being that a table view is defined by two elements, first the section and rows in a section, and second the tableview cells. By default there is at least one section in the table view, but we need conformance about number of rows in a section. Secondly, we need to know which cell are we going to present in a particular row in a section. Regardless,even if we are using default UITableViewCell, we still need an identifier to access it in order to set its subviews or properties. I hope it was helpful, A bit soft criticism will be appreciated since I am myself very new to Swift :)