How do I send specific data based on which cell is clicked? - ios

Question

I have a tableview with a bunch of concerts, and when x cell is clicked, I want the artist of that concert to populate the new tableView. Below is the code for the first view controller (the view controller with all the concerts).
class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
#IBOutlet weak var tableView1: UITableView!
var arrayOfConcerts: [concert] = [concert]()
override func viewDidLoad()
{
super.viewDidLoad()
self.setUpConcerts()
self.tableView1.rowHeight = 145.0
}
func setUpConcerts()
{
var ACL = concert(imageName: "ACL2015.png")
let Landmark = concert(imageName: "Landmark.png")
let BostonCalling = concert(imageName: "BostonCalling.png")
let Lolla = concert(imageName: "Lolla.png")
arrayOfConcerts.append(ACL)
arrayOfConcerts.append(Landmark)
arrayOfConcerts.append(BostonCalling)
arrayOfConcerts.append(Lolla)
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return arrayOfConcerts.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
let cell = self.tableView1.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as! CustomCell
let concerts = arrayOfConcerts[indexPath.row]
cell.setCell(concerts.imageName)
return cell
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
performSegueWithIdentifier("concertartist", sender: self)
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?)
{
}
}
Below is the code for the Artist View Controller (the second
viewcontroller). This tableView should be populated with specific
artists.
How would I go about doing that?
class ArtistConcerts: UIViewController, UITableViewDataSource, UITableViewDelegate {
var arrayOfArtists: [artist] = [artist]()
#IBOutlet weak var tableViewArtists: UITableView!
override func viewDidLoad()
{
super.viewDidLoad()
self.setUpArtists()
}
func setUpArtists()
{
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return arrayOfArtists.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = self.tableViewArtists.dequeueReusableCellWithIdentifier("", forIndexPath: indexPath) as! CustomCell
let artists = arrayOfArtists[indexPath.row]
cell.setCell(artists.imageNameArtist)
return cell
}
}

Answer 1

You need to do this in the prepareForSegue method.
let vc = segue!.destinationViewController as! ArtistConcerts
if let rowSelected = tableView.indexPathForSelectedRow()?.row {
vc.arrayOfArtists = artistsPerforming[0]//this is an array
}
then, set whatever data you need to actually populate the tableView in that new view controller. I am not 100% sure on what you are trying to do though. Does my answer make sense?

Answer 2

you can send data once the cell is pressed to another viewcontroller by using didSelectRowAtIndexPath or prepareForSegue or didSelectRowAtIndexPath + prepareForSegue
let's say you are using prepareForSegue, things you will need
the segue identifier name
cast the destinationController to the controller you want to send the data
the indexPath.row where the cell was selected
then set the variable or variables or data structure that should receive data
Create a segue when you pressed CTRL + Drag from your cell into another viewcontroller
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?)
{
if segue.identifier == "Name_Of_Segue"
{
let destination = segue.destinationViewController as! NAME_Of_ViewController
let indexPath = mytableview.indexPathForSelectedRow!
let data = arrayOfArtists[indexPath.row]
destination.artist = data
}
mytableview is an IBOutlet from your tableview
artist is a variable that is declared in your destination controller
destination.artist = data this line of code is passing data from the specific cell then send it to your destination cell