How to detect tableView cell touched or clicked in swift

pawisoon Source

I'm trying to get index of selected item in TableView and start some activity after that. Unfortunately most of solutions that I found are in objective-c or do not work.

Method func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) don't print the cell label..

Can somebody help me please?

import UIKit
import ResearchKit

class TaskListViewController: UIViewController, UITableViewDataSource {

    let tasks=[("Short walk"),
        ("Audiometry"),
        ("Finger tapping"),
        ("Reaction time"),
        ("Spatial span memory")
    ]


    //how many sections are in your table
    func numberOfSectionsInTableView(tableView: UITableView) -> Int {
        return 1
    }

    //return int how many rows
    func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return tasks.count
    }

    //what are the contents

    func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        var cell = UITableViewCell()

        var (testName) = tasks[indexPath.row]
        cell.textLabel?.text=testName
        return cell
    }

    // give each table section a name

    func tableView(tableView: UITableView, titleForHeaderInSection section: Int) -> String? {

        return "Tasks"

    }

    func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {

        let indexPath = tableView.indexPathForSelectedRow();

        let currentCell = tableView.cellForRowAtIndexPath(indexPath!) as UITableViewCell!

        println(currentCell.textLabel!.text)
    }


    override func viewDidLoad() {
        super.viewDidLoad()

    }  
}

After a few tries I changed the code to a different one from tutorial that I found. And it doesn't work too. Now I'm thinking this is the issue with iOS simulator...

import UIKit
import ResearchKit

class TaskListViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {

    @IBOutlet
    var tableView: UITableView?
    var items: [String] = ["We", "Heart", "Swift"]

    override func viewDidLoad() {
        super.viewDidLoad()

        self.tableView!.registerClass(UITableViewCell.self, forCellReuseIdentifier: "cell")
    }


    func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return self.items.count;
    }

    func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        var cell:UITableViewCell = self.tableView!.dequeueReusableCellWithIdentifier("cell") as! UITableViewCell

        cell.textLabel?.text = self.items[indexPath.row]

        return cell
    }

    func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
        println("You selected cell #\(items[indexPath.row])!")
    }

}

iosswiftuitableview

Answers

answered 3 years ago Ashish Kakkad #1

If you want the value from cell then you don't have to recreate cell in the didSelectRowAtIndexPath

func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
    println(tasks[indexPath.row])
}

Task would be as follows :

let tasks=["Short walk",
    "Audiometry",
    "Finger tapping",
    "Reaction time",
    "Spatial span memory"
]

also you have to check the cellForRowAtIndexPath you have to set identifier.

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCellWithIdentifier("CellIdentifier", forIndexPath: indexPath) as UITableViewCell
    var (testName) = tasks[indexPath.row]
    cell.textLabel?.text=testName
    return cell
}

Hope it helps.

answered 3 years ago pawisoon #2

Problem was solved by myself using tutorial of weheartswift

enter image description here

answered 1 year ago jaiswal Rajan #3

In Swift 3.0

You can find the event for the touch/click of the cell of tableview through it delegate method. As well, can find the section and row value of the cell like this.

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
       print("section: \(indexPath.section)")
       print("row: \(indexPath.row)")
}

answered 7 months ago Mr Duck #4

This worked good for me:

    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        print("section: \(indexPath.section)")
        print("row: \(indexPath.row)")
    }

The output should be:

section: 0
row: 0

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