Pass data from a function to table view - ios

Question

I have been trying to create an app that gets a website data through a function ( func obtainData) and display some of the data on a tableView.
I have figured out the part on how to get the data from the website then make it as an array so I can use indexpath.row but I have not able to find out the way to pass on the data I'm getting to display it on a tableView.
Any ideas!
Thanks
Below is the code I wrote.
import UIKit
class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
var recommendation = ""
var recommendationArray = ""
var delExtraTextArray = [String]()
var urlRecommendationArrayStart = [String]()
var urlRecommendationArrayEnd = [String]()
var RecommendationStart = [String]()
var RecommendationEnd = [String]()
// need the var below to make the recommendations as an array to be used in a table view as indexpath.row
var cellNumber = [String]()
var cellTitle = [String]()
var cellDetails = [String]()
#IBOutlet var tableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
obtainData()
tableView.delegate = self
tableView.dataSource = self
}
func obtainData () {
var url = NSURL (string: "http://www.choosingwisely.org/societies/american-college-of-obstetricians-and-gynecologists")
if url != nil {
let task = NSURLSession.sharedSession().dataTaskWithURL(url!, completionHandler: { (data, response, error) -> Void in
if error == nil {
// to get all of the url content and covert them into string
var urlContent = NSString(data: data!, encoding: NSUTF8StringEncoding) as NSString!
// to get to a specific contect seperated by a string
self.urlRecommendationArrayStart = (urlContent?.componentsSeparatedByString("<ol class=\"society-ol\">"))!
if self.urlRecommendationArrayStart.count > 0 {
self.urlRecommendationArrayEnd = self.urlRecommendationArrayStart[1].componentsSeparatedByString("</ol>")
// print(self.urlRecommendationArrayEnd)
// to check if there is any extra not needed text at the end of the recommnedations in the source page
self.delExtraTextArray = self.urlRecommendationArrayEnd[0].componentsSeparatedByString("<p><a")
if self.delExtraTextArray.count > 0 {
self.recommendationArray self.delExtraTextArray[0] as! String
self.obtainRecommendationTitle()
} else {
self.recommendationArray = self.urlRecommendationArrayEnd[0] as! String
self.obtainRecommendationTitle()
// print("method 2 worked")
}
} else {
self.textView.text = "Sorry, couldn't get the recommendation at this point. Please make sure to download the updated version of the app"
}
} else {
self.textView.text = "Please check connection then try again"
}
})
task.resume()
} else {
self.textView.text = "Please check connection then try again"
}
}
// to get the title of each recommendation
func obtainRecommendationTitle() -> Array<String> {
for var i = 2; i < urlRecommendationArrayEnd[0].componentsSeparatedByString("<p>").count - delExtraTextArray.count ; i = i + 4 {
self.RecommendationStart = self.delExtraTextArray[0].componentsSeparatedByString("<p>")
self.RecommendationEnd = RecommendationStart[i].componentsSeparatedByString("</p>")
self.recommendationArray = self.RecommendationEnd[0] as! String
self.cellTitle.append(recommendationArray)
}
return cellTitle
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return cellTitle.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = UITableViewCell(style: UITableViewCellStyle.Default, reuseIdentifier: "cell")
cell.textLabel?.text = cellTitle [indexPath.row]
return cell
}

Answer 1

You would pass it via the cellForRowAtIndexPath delegate method. This question is too open ended for a firm answer, but following along any half-decent online UITableView tutorial should do the trick.
A quick glance at this one appears to hit the basics: https://www.weheartswift.com/how-to-make-a-simple-table-view-with-ios-8-and-swift/

Answer 2

I think what you need is to configure the contents of the table view cell with the data you want. Based on this assumption, you can use something like this:
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
if let cell = tableView.dequeueReusableCellWithIdentifier("PUT_YOUR_CELL_IDENTIFIER_HERE") as? UITableViewCell {
let stuff = yourArray[indexPath.row]
stuff.some_property_you_want = the_value_you_want
return cell
} else {
return UITableViewCell()
}
}
If you show some code or explain your problem a little better, you will get a better support from the people here on Stack Overflow.
EDIT (based on your edit):
Are you using a normal cell?
The cell has the text field to put the string you want?
Did you define the cell's identifier, "cell", in the storyboard?
Did you connect the tableView outlet to the tableView itself?
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
if let cell = tableView.dequeueReusableCellWithIdentifier("cell") as? UITableViewCell {
print("ENTERED HERE!")
let myCellText = cellTitle[indexPath.row]
//what is the result of this print?
print("TEXT TO ADD: \(myCellText)")
//(...)
cell.textLabel?.text = myCellText
return cell
} else {
return UITableViewCell()
}
}
What is the result of these prints?