Unable to reload the data at runtime.

How to reload the data with updated data at runtime?

I am trying to reload the data after the tap on didselectRowAtIndexPath method
table reload fine but when I am scrolling the table than crash occurs in
below method

public func cellIdentifierUsingTableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> Node{
return arrayVisibles[indexPath.row]
}

Can you please send the solution to the problem, I am stuck in solving the problem

Can you please send a demo project with issue. So I can resolve quickly. Sent from Yahoo Mail for iPhone On Friday, March 16, 2018, 5:06 PM, Mohd Sazid <notifications@github.com> wrote: How to reload the data with updated data at runtime? I am trying to reload the data after the tap on didselectRowAtIndexPath method table reload fine but when I am scrolling the table than crash occurs in below method public func cellIdentifierUsingTableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> Node{ return arrayVisibles[indexPath.row] } Can you please send the solution to the problem, I am stuck in solving the problem — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or mute the thread.

I only want to reload the data as normally we do

It’s because I unable to reproduce the issue. Sent from Yahoo Mail for iPhone On Friday, March 16, 2018, 5:44 PM, Mohd Sazid <notifications@github.com> wrote: I only want to reload the data as normally we do — You are receiving this because you commented. Reply to this email directly, view it on GitHub, or mute the thread.

import UIKit
import KJExpandableTableTree

class POIPlacesVC: UIViewController, UITableViewDelegate, UITableViewDataSource {
// KJ Tree instances -------------------------
var arrayTree:[Parent] = []
var kjtreeInstance: KJTree = KJTree()

@IBOutlet weak var tblList: UITableView!
@IBOutlet weak var viewHeader: UIView!
@IBOutlet weak var lblHeader: UILabel!
var arrayParents: NSArray?

override func viewDidLoad() {
    super.viewDidLoad()

// let filepath: String? = Bundle.main.path(forResource: "Tree", ofType: "json")
// let url = URL(fileURLWithPath: filepath ?? "")
//
// var jsonData: Data?
// do {
// jsonData = try Data(contentsOf: url)
// }catch{
// print("error")
// }
//
// var jsonDictionary: NSDictionary?
// do {
// jsonDictionary = try JSONSerialization.jsonObject(with: jsonData!, options: .init(rawValue: 0)) as? NSDictionary
// }catch{
// print("error")
// }
//
//// var arrayParents: NSArray?
// if let treeDictionary = jsonDictionary?.object(forKey: "Tree") as? NSDictionary {
// if let arrayOfParents = treeDictionary.object(forKey: "Parents") as? NSArray {
// arrayParents = arrayOfParents
// }
// }

    if let arrayOfParents = arrayParents {
        kjtreeInstance = KJTree(parents: arrayOfParents, childrenKey: "Children", expandableKey: "Expanded", key: "Id")

// kjtreeInstance = KJTree(parents: poiDummyDat as NSArray, childrenKey: "Children", expandableKey: "Expanded", key: "Id")
}
kjtreeInstance.isInitiallyExpanded = true
kjtreeInstance.animation = .fade

    print(arrayParents?.count)
    tblList.delegate = self
    tblList.dataSource = self
    tblList.rowHeight = UITableViewAutomaticDimension
    tblList.estimatedRowHeight = 44
    
}

func resetTblData() {
    if let arrayOfParents = arrayParents {
        kjtreeInstance = KJTree(parents: arrayOfParents, childrenKey: "Children", expandableKey: "Expanded", key: "Id")
    }
    
   // kjtreeInstance.isInitiallyExpanded = true
   // kjtreeInstance.animation = .fade

    
    print(arrayParents?.count)
    tblList.delegate = self
    tblList.dataSource = self
    tblList.rowHeight = UITableViewAutomaticDimension
    tblList.estimatedRowHeight = 44
   // tblList.reloadData()
}

@IBAction func tapBack(_ sender: UIButton) {
    self.navigationController?.popViewController(animated: true)
}




@IBAction func tapToSeeMap(_ sender: UIButton) {

// let mapVC = self.storyboard?.instantiateViewController(withIdentifier: "POIMapsVC")as! POIMapsVC
// self.navigationController?.pushViewController(mapVC, animated: true)
}

}

extension POIPlacesVC {

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    let total = kjtreeInstance.tableView(tableView, numberOfRowsInSection: section)
    return total
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    
    let node = kjtreeInstance.cellIdentifierUsingTableView(tableView, cellForRowAt: indexPath)
    let indexTuples = node.index.components(separatedBy: ".")
    
    if indexTuples.count == 1  {
        
        // Parents
        let cellIdentifierParents = "ParentsTableViewCellIdentity"
        var cellParents: ParentsTableViewCell? = tableView.dequeueReusableCell(withIdentifier: cellIdentifierParents) as? ParentsTableViewCell
        if cellParents == nil {
            tableView.register(UINib(nibName: "ParentsTableViewCell", bundle: nil), forCellReuseIdentifier: cellIdentifierParents)
            cellParents = tableView.dequeueReusableCell(withIdentifier: cellIdentifierParents) as? ParentsTableViewCell
        }
        cellParents?.cellFillUp(indexParam: node.index, tupleCount: indexTuples.count)
        cellParents?.selectionStyle = .none
        
        if node.state == .open {
            cellParents?.buttonState.setImage(UIImage(named: "minus"), for: .normal)
        }else if node.state == .close {
            cellParents?.buttonState.setImage(UIImage(named: "plus"), for: .normal)
        }else{
            cellParents?.buttonState.setImage(nil, for: .normal)
        }
        
        return cellParents!
        
    }else if indexTuples.count == 2{
        
        // Parents
        let cellIdentifierChilds = "Childs2ndStageTableViewCellIdentity"
        var cellChild: Childs2ndStageTableViewCell? = tableView.dequeueReusableCell(withIdentifier: cellIdentifierChilds) as? Childs2ndStageTableViewCell
        if cellChild == nil {
            tableView.register(UINib(nibName: "Childs2ndStageTableViewCell", bundle: nil), forCellReuseIdentifier: cellIdentifierChilds)
            cellChild = tableView.dequeueReusableCell(withIdentifier: cellIdentifierChilds) as? Childs2ndStageTableViewCell
        }
        cellChild?.cellFillUp(indexParam: node.index)
        cellChild?.selectionStyle = .none
        
        if node.state == .open {
            cellChild?.buttonState.setImage(UIImage(named: "minus"), for: .normal)
        }else if node.state == .close {
            cellChild?.buttonState.setImage(UIImage(named: "plus"), for: .normal)
        }else{
            cellChild?.buttonState.setImage(nil, for: .normal)
        }
        
        return cellChild!
        
    }else if indexTuples.count == 3{
        
        // Parents
        let cellIdentifierChilds = "Childs3rdStageTableViewCellIdentity"
        var cellChild: Childs3rdStageTableViewCell? = tableView.dequeueReusableCell(withIdentifier: cellIdentifierChilds) as? Childs3rdStageTableViewCell
        if cellChild == nil {
            tableView.register(UINib(nibName: "Childs3rdStageTableViewCell", bundle: nil), forCellReuseIdentifier: cellIdentifierChilds)
            cellChild = tableView.dequeueReusableCell(withIdentifier: cellIdentifierChilds) as? Childs3rdStageTableViewCell
        }
        cellChild?.cellFillUp(indexParam: node.index)
        cellChild?.selectionStyle = .none
        
        if node.state == .open {
            cellChild?.buttonState.setImage(UIImage(named: "minus"), for: .normal)
        }else if node.state == .close {
            cellChild?.buttonState.setImage(UIImage(named: "plus"), for: .normal)
        }else{
            cellChild?.buttonState.setImage(nil, for: .normal)
        }
        
        return cellChild!
        
    }
    else if indexTuples.count == 4{
        
        // Parents
        let cellIdentifierChilds = "Childs4thStageTableViewCellIdentity"
        var cellChild: Childs4thStageTableViewCell? = tableView.dequeueReusableCell(withIdentifier: cellIdentifierChilds) as? Childs4thStageTableViewCell
        if cellChild == nil {
            tableView.register(UINib(nibName: "Childs4thStageTableViewCell", bundle: nil), forCellReuseIdentifier: cellIdentifierChilds)
            cellChild = tableView.dequeueReusableCell(withIdentifier: cellIdentifierChilds) as? Childs4thStageTableViewCell
        }
        cellChild?.cellFillUp(indexParam: node.index)
        cellChild?.selectionStyle = .none
        
        if node.state == .open {
            cellChild?.buttonState.setImage(UIImage(named: "minus"), for: .normal)
        }else if node.state == .close {
            cellChild?.buttonState.setImage(UIImage(named: "plus"), for: .normal)
        }else{
            cellChild?.buttonState.setImage(nil, for: .normal)
        }
        
        return cellChild!
        
    }
    else{
        // Childs
        // grab cell
        var tableviewcell = tableView.dequeueReusableCell(withIdentifier: "cellidentity")
        if tableviewcell == nil {
            tableviewcell = UITableViewCell(style: .default, reuseIdentifier: "cellidentity")
        }
        tableviewcell?.textLabel?.text = node.index
        tableviewcell?.backgroundColor = UIColor.yellow
        tableviewcell?.selectionStyle = .none
        return tableviewcell!
    }
}

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
    let node = kjtreeInstance.cellIdentifierUsingTableView2(tableView, cellForRowAt: indexPath)
    let indexTuples = node.index.components(separatedBy: ".")
    if indexTuples.count == 3 {
        print(indexTuples)
        print(node.index)
        let firstLevelData = arrayParents![Int(indexTuples.first!)!] as! [String : Any] //State Level DAta
        //print(firstLevelData.count)
        print(firstLevelData)
        let secondLavelData = firstLevelData["Children"] as! NSArray
        print(secondLavelData[Int(indexTuples[1])!])
        let thirdLevelData = secondLavelData[Int(indexTuples[1])!] as! [String : Any]// Community Level Data
        print(thirdLevelData["Children"])
        print(route2Data)
        
        let arrPois = thirdLevelData["Children"] as! NSArray

// let lastPoi = arrPois.lastObject as! [String : Any]// replace with current poi tupple value
let lastPoi = arrPois[Int(indexTuples[2])!]as! [String : Any]//.lastObject as! [String : Any]
let detailsPOI = lastPoi["details"]as! [String : Any]
print(lastPoi)
print(arrPois)
print(detailsPOI)
print(detailsPOI["diversion"])
print(detailsPOI["id"])

        for dict in thirdLevelData["Children"]as! NSArray {
            print(dict)
            let data = dict as! [String : Any]
            print(data["diversion"])
        }
        
        
        let firstLevelData1 = route2Data[0] as! [String : Any]
        let secondLavelData1 = firstLevelData1["Children"] as! NSArray
        let thirdLevelData1 = secondLavelData1[0] as! [String : Any]
        let arrPois1 = thirdLevelData1["Children"] as! NSArray
        let firstPoi1 = arrPois1.firstObject as! [String : Any]
        let detailsPOI1 = firstPoi1["details"]as! [String : Any]
        if detailsPOI["id"]as! String == detailsPOI1["id"]as! String {
            print("can be switch other route")
           // arrayParents![Int(indexTuples.first!)!] = route2Data
            var arrRouteData: Array<Dictionary<String,Any>> = arrayParents as! Array<Dictionary<String,Any>>
            arrRouteData.remove(at: Int(indexTuples.first!)!)
            arrRouteData.insert(firstLevelData1, at: Int(indexTuples.first!)!)
            arrayParents = arrRouteData as! NSArray
            resetTblData()
            
        }

// for dict in thirdLevelData["Children"]as! NSArray {
// print(dict)
// let data = dict as! [String : Any]
//
// arrDetailsData.append(data["data"] as! [String : String])
// }
// print(arrDetailsData)
}

I have sent the whole class and In didSelectRowAtIndexPath I need nod so I have use the same in above without expending/collapsing the cell

Hi, Have any solution for that

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Unable to reload the data at runtime. #13

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Unable to reload the data at runtime. #13

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KiranJasvanee commented on Mar 16, 2018

sazidIqabal commented on Mar 16, 2018

KiranJasvanee commented on Mar 16, 2018

sazidIqabal commented on Mar 16, 2018

sazidIqabal commented on Mar 16, 2018

sazidIqabal commented on Mar 20, 2018

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