Make first section rows cell already expanded in Expandable table view cells - ios

Question

In my App I implemented Expandable tableview. It's worked perfectly but now I want to change the first section was already expandable mode but I unable to do that.
Here I have implemented my own native code for creating expandable tableview not using any third party libraries.
Here I post my Full code for Expandable TableView:
#IBOutlet weak var tableViewSecond: UITableView!
var hidden = [true]
override func viewDidLoad() {
super.viewDidLoad()
tableViewSecond.delegate = self
tableViewSecond.dataSource = self
InspectionArray = [["inspection_name":"AVM Inspection"], ["inspection_name":"Simple Inspection"], ["inspection_name":"BVM Inspection"]]
InspectionSectionArray = [["inspection_Session":"Current Inspection"], ["inspection_Session":"Past Inspection"], ["inspection_Session":"Future Inspection"]]
}
func numberOfSections(in tableView: UITableView) -> Int {
for _ in 0..<InspectionSectionArray.count {
hidden.append(true)
}
return InspectionSectionArray.count
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if hidden[section] {
return 0
} else {
return InspectionArray.count
}
}
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let headerView = UIView()
headerView.backgroundColor = UIColor.orange
headerView.tag = section
let label = UILabel()
label.text = (InspectionSectionArray[section] as AnyObject).value(forKey: "inspection_Session") as? String
label.frame = CGRect(x: 45, y: 5, width: 150, height: 35)
label.font = UIFont.boldSystemFont(ofSize: 15)
headerView.addSubview(label)
label.tag = section
let tapForheaderView = UITapGestureRecognizer(target: self, action: #selector(SecondViewController.tapFunction))
headerView.isUserInteractionEnabled = true
headerView.addGestureRecognizer(tapForheaderView)
return headerView
}
func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
return 2
}
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 45
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
var cell = tableView.dequeueReusableCell(withIdentifier: "SecondTableViewCell", for: indexPath) as? SecondTableViewCell
if cell == nil {
cell = UITableViewCell(style: .default, reuseIdentifier: "SecondTableViewCell") as? SecondTableViewCell;
}
cell!.dataLbl.text = (InspectionArray[indexPath.row] as AnyObject).value(forKey: "inspection_name") as? String
return cell!
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
tableView.deselectRow(at: indexPath, animated: true)
print(indexPath.row)
print("\(indexPath.section)","\(indexPath.row)")
}
func tapFunction(sender:UITapGestureRecognizer) {
let section = sender.view!.tag
let indexPaths = (0..<InspectionArray.count).map { i in return IndexPath(item: i, section: section) }
hidden[section] = !hidden[section]
tableViewSecond.beginUpdates()
if hidden[section] {
tableViewSecond.deleteRows(at: indexPaths, with: .fade)
} else {
tableViewSecond.insertRows(at: indexPaths, with: .fade)
}
tableViewSecond.endUpdates()
}

Answer 1

I believe you only need to change this:
// declare hidden as this
var hidden: [Bool] = []
override func viewDidLoad() {
super.viewDidLoad()
InspectionArray = [["inspection_name":"AVM Inspection"], ["inspection_name":"Simple Inspection"], ["inspection_name":"BVM Inspection"]]
InspectionSectionArray = [["inspection_Session":"Current Inspection"], ["inspection_Session":"Past Inspection"], ["inspection_Session":"Future Inspection"]]
// initialize hidden array so that the first is false and the rest true
hidden = Array<Bool>(repeating: true, count: InspectionSectionArray.count)
hidden[0] = false
tableViewSecond.delegate = self
tableViewSecond.dataSource = self
}
// and change numberOfSections to this
func numberOfSections(in tableView: UITableView) -> Int {
return InspectionSectionArray.count
}

Answer 2

Just change this function
func tapFunction(sender: UITapGestureRecognizer?) {
var section = 0
if sender != nil {
section = sender!.view!.tag
}
let indexPaths = (0..<InspectionArray.count).map { i in return IndexPath(item: i, section: section) }
hidden[section] = !hidden[section]
tableViewSecond.beginUpdates()
if hidden[section] {
tableViewSecond.deleteRows(at: indexPaths, with: .fade)
} else {
tableViewSecond.insertRows(at: indexPaths, with: .fade)
}
tableViewSecond.endUpdates()
}
And call self.tapFunction(sender: nil) in viewdidLoad.