Uitableviewcell Set Selected Initially

UITableViewCell Set selected initially

try this

NSIndexPath* selectedCellIndexPath= [NSIndexPath indexPathForRow:0 inSection:0];
[self tableView:tableViewList didSelectRowAtIndexPath:selectedCellIndexPath];
[tableViewList selectRowAtIndexPath:selectedCellIndexPath animated:YES scrollPosition:UITableViewScrollPositionNone];

OR

- (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
    if (/* should be selected */) {
        [cell setSelected:YES animated:NO];
    }
}

Swift 4 version is

func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath) {
    func shouldSelect() -> Bool {
        // Some checks
    }
    if shouldSelect() {
            tableView.selectRow(at: indexPath, animated: false, scrollPosition: .none)
    }
}

Set default selected cell in UITableViewController

try this:

class TableViewController: UITableViewController {
  override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return 5
  }

  override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCellWithIdentifier("CustomCell", forIndexPath: indexPath)

    // setup selectedBackgroundView
    let backgroundSelectionView = UIView()
    backgroundSelectionView.backgroundColor = UIColor.whiteColor().colorWithAlphaComponent(0.1)
    cell.selectedBackgroundView = backgroundSelectionView

    return cell
  }

  override func viewWillAppear(animated: Bool) {
    super.viewWillAppear(animated)

    let indexPath = NSIndexPath(forRow: 0, inSection: 0)
    tableView.selectRowAtIndexPath(indexPath, animated: false, scrollPosition: .None)
  }
}

How to set selected some index of TableView

First select multipleSelection checkmark in storyboard, or by code self.testTableView.allowsMultipleSelection = true, then after tableview.reloadData put this 2 lines

    self.testTableView.selectRow(at:  IndexPath(row: 0, section: 0), animated: false, scrollPosition: .none)
    self.testTableView.selectRow(at:  IndexPath(row: 2, section: 0), animated: false, scrollPosition: .none)

Standard Code

    self.testTableView.reloadData()
    self.testTableView.allowsMultipleSelection = true
    //here is where selection is made
    self.testTableView.selectRow(at:  IndexPath(row: 0, section: 0), animated: false, scrollPosition: .none)
    self.testTableView.selectRow(at:  IndexPath(row: 2, section: 0), animated: false, scrollPosition: .none)

Specified this Example Code

var variable = ["zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine"]

import UIKit

class ControllerClass: UIViewController, UITableViewDelegate, UITableViewDataSource {
    @IBOutlet weak var testTableView: UITableView!
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return variable.count
    }

    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "testCell", for: indexPath) as! TestTableViewCell
        cell.accessoryType = .none
        cell.lblWordText?.text = variable[indexPath.row]
        return cell
    }

    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
    }

    func tableView(_ tableView: UITableView, didDeselectRowAt indexPath: IndexPath) {

    }

    override func viewWillAppear(_ animated: Bool) {
        self.tabBarController?.tabBar.isHidden = true
    }
    override func viewDidAppear(_ animated: Bool){
        super.viewDidAppear(animated)
        self.testTableView.allowsMultipleSelection = true
        self.testTableView.reloadData()
        //here is where selection is made
        self.testTableView.selectRow(at: IndexPath(row: 0, section: 0), animated: false, scrollPosition: .none)
        self.testTableView.selectRow(at: IndexPath(row: 2, section: 0), animated: false, scrollPosition: .none)
    } 
    override func viewDidLoad() { 
        testTableView.dataSource = self 

    } 
}

Hope this helps

Set Selected/ Unselected view color in UITableView in Swift

You need to override setSelected(_:animated:) method in TableViewCell and configure the backgroundColor based on selected state.

class TableViewCell: UITableViewCell {
    override func setSelected(_ selected: Bool, animated: Bool) {
        super.setSelected(selected, animated: animated)
        self.backgroundColor = selected ? .red : .clear
    }
}

No need to change the backgroundColor in tableView(_:didSelectRowAt:) method.

Selecting first row in UITableViewController in Swift

You forgot implement func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) method.

And you needn't to use delegate when call didSelectRowAtIndexPath:

if(indexPath.row == 0)
        {
            let rowToSelect:NSIndexPath = NSIndexPath(forRow: 0, inSection: 0)

            tableView.selectRowAtIndexPath(rowToSelect, animated: true, scrollPosition: UITableViewScrollPosition.None)

           self.tableView(tableView, didSelectRowAtIndexPath: rowToSelect)
        }

=== EDITED ===

Change your didDeselectRowAtIndexPath to didSelectRowAtIndexPath.

How to select UITableView cell programmatically (Swift 2)

Try to use viewDidAppear

func viewDidAppear(animated: Bool){
    super.viewDidAppear(animated)
    let path = NSIndexPath(forRow: 1, inSection: 0)
    tableView.selectRowAtIndexPath(myPath, animated: false, scrollPosition: UITableViewScrollPosition.None)
}

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