swift tableview separator line missing between first and second row - swift

Question

I created a table and it seems the separator line between the first and second cell is missing and the rest are there. If I scroll to the top and back the line appears :
Below is the tableview rows functions. I read from a mysql database and display the rows.
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
return dbarray_id.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
{
//for(var i = 0; i < dbarray_id.count; i += 1)
//for i in 0..<dbarray_code.count
//{
// //newVars.put_timelog("cellForRowAtIndexPath_uiswitch :\(uiswitch_onoff[i]) \(uiswitch_enabled[i])")
//}
let cell = tableView.dequeueReusableCell(withIdentifier: "pushgroups_tvc") as! pushgroups_tvc
cell.backgroundColor = UIColor.clear
cell.txtsubject.text = dbarray_title[(indexPath as NSIndexPath).row]
cell.txtbody.text = dbarray_description[(indexPath as NSIndexPath).row]
cell.txtsubject.numberOfLines=0
cell.txtsubject.lineBreakMode = NSLineBreakMode.byWordWrapping
cell.txtbody.numberOfLines=0
cell.txtbody.lineBreakMode = NSLineBreakMode.byWordWrapping
cell.txtsubject.textColor = UIColor.blue
cell.txtsubject.font = newVars.font_subject
cell.txtbody.font = newVars.font_body
cell.addgroup.tag = (indexPath as NSIndexPath).row
//update switch to selected value
//cell.addgroup.on = false
cell.addgroup.isOn = uiswitch_onoff[(indexPath as NSIndexPath).row]
if uiswitch_enabled[(indexPath as NSIndexPath).row] == true
{
cell.addgroup.isEnabled = true
cell.addgroup.backgroundColor = UIColor.clear
}
else
{
cell.addgroup.isEnabled = false
cell.addgroup.backgroundColor = UIColor.clear
}
cell.txtaccesscode.text = ""
cell.txtaccesscode.isEnabled = true
cell.txtaccesscode.tag = (indexPath as NSIndexPath).row
cell.txtaccesscode.tintColor = UIColor.blue
cell.txtaccesscode.autocapitalizationType = .allCharacters
//GGGGGG
cell.txtaccesscode.addTarget(self, action: #selector(textFieldTyping_access), for: .editingChanged)
if dbarray_public[(indexPath as NSIndexPath).row] == "Y"
{
//cell.backgroundColor = UIColor.blueColor().colorWithAlphaComponent(0.2)
cell.txtaccesscode.text = ""
cell.txtaccesscode.isEnabled = false
cell.addgroup.isEnabled = true
cell.txtaccesscode.isHidden = true
}
if dbarray_public[(indexPath as NSIndexPath).row] == "R"
{
cell.txtaccesscode.isHidden = false
//cell.backgroundColor = UIColor.redColor().colorWithAlphaComponent(0.2)
}
if dbarray_public[(indexPath as NSIndexPath).row] == "H"
{
//cell.backgroundColor = UIColor.greenColor().colorWithAlphaComponent(0.2)
}
cell.selectionStyle = .none
cell.layoutMargins = UIEdgeInsets.zero
cell.separatorInset = UIEdgeInsets.zero
cell.layoutMargins = UIEdgeInsets.zero
cell.backgroundColor = newVars.hexStringToUIColor(hex: newVars.tableview1_background_color).withAlphaComponent(CGFloat(newVars.tableview1_background_color_alpha))
return cell
}
func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath)
{
newVars.put_timelog(timedata: "GORDON pushgroups_vc_textFieldDidBeginEditing(textField ")
//tableView.separatorStyle = UITableViewCellSeparatorStyle.singleLineEtched
tableView.separatorStyle = UITableViewCellSeparatorStyle.singleLine
tableView.separatorColor = UIColor.black
//tableView.backgroundColor = UIColor.red //overrides cell color
tableView.showsHorizontalScrollIndicator = false
tableView.showsVerticalScrollIndicator = false
}

Answer 1

I believe that setting:
cell.selectionStyle = .none
And then programmatically selecting a cell, like in the viewDidLoad method will cause this bug.
I had the same problem and solved it using accessory checkmark and disabling selection. After I removed the code that selected the first cell by default, the bug disappeared.