swift, Tableview is displayed incorrectly after saving new Data - swift

Question

at first sorry for my bad english.
My problem is that my tableview will be misrepresented as soon as I save a new file in Firebase.
When saving, a new AddViewController is called.
After saving is automatically returned to the TableviewController.
However, if I stop and restart the app so that the TableviewController is recreated, my tableview will be displayed correctly.
I create a header from an array.
Then I create the cell from another array.
I do not understand why my tableview is displayed incorrectly when I return after saving, but when I recreate the view after the app has finished everything is shown correctly.
My sample pictures:
that's right:
that's bad
My Code from TableViewController:
override func viewDidLoad() {
super.viewDidLoad()
refresher = UIRefreshControl()
refresher.attributedTitle = NSAttributedString(string: "Pull to refresh")
refresher.addTarget(self, action: #selector(TagebuchViewController.refresh), for: UIControlEvents.valueChanged)
tableView.addSubview(refresher)
loadTableview()
}
Load data from Firebase, loadTableView():
func loadTableview(){
let userID = Firebase.Auth.auth().currentUser?.uid
databaseRef = Database.database().reference().child("DiabetesIOS").child(userID!)
databaseRef.observe(.value, with: {(snapshot) in
var newItems = [Post]()
var newItemsDate = [String]()
var aNewTime = [String]()
var aNewBl = [String]()
var aNewK = [String]()
var aNewBo = [String]()
var aNewBa = [String]()
var aNewBlu = [String]()
var aNewP = [String]()
var aNewN = [String]()
var dimArrayNewTime = [[String]]()
var dimArrayNewBl = [[String]]()
var dimArrayNewK = [[String]]()
var dimArrayNewBo = [[String]]()
var dimArrayNewBa = [[String]]()
var dimArrayNewBlu = [[String]]()
var dimArrayNewP = [[String]]()
var dimArrayNewN = [[String]]()
for year in snapshot.children.allObjects as! [DataSnapshot] {
for month in year.children.allObjects as! [DataSnapshot] {
for day in month.children.allObjects as! [DataSnapshot] {
for date in day.children.allObjects as! [DataSnapshot] {
for time in date.children.allObjects as! [DataSnapshot] {
let newPost = Post(snapshot: time)
newItems.append(newPost)
let newDate = Post(snapshot: time)
newItemsDate.append(newDate.snap6Date!)
if self.snapshotCheck == 0{
self.snapshotCheckDate = newDate.snap6Date
self.snapshotCheck += 1
}
else{
}
if self.snapshotCheckDate == newDate.snap6Date{
aNewTime.append(newDate.time)
aNewBl.append(newDate.blutzucker)
aNewKe.append(newDate.ke)
aNewBo.append(newDate.bolusInsulin)
aNewBa.append(newDate.basalInsulin)
aNewBlu.append(newDate.blutdruck)
aNewP.append(newDate.puls)
aNewN.append(newDate.notiz)
}
else{
dimArrayNewTime.append(aNewTime)
dimArrayNewBl.append(aNewBlutzucker)
dimArrayNewK.append(aNewKe)
dimArrayNewBo.append(aNewBolusinsulin)
dimArrayNewBa.append(aNewBasalinsulin)
dimArrayNewBlu.append(aNewBlutdruck)
dimArrayNewP.append(aNewPuls)
dimArrayNewN.append(aNewNotiz)
aNewTime.removeAll()
aNewBl.removeAll()
aNewK.removeAll()
aNewBo.removeAll()
aNewBa.removeAll()
aNewBlu.removeAll()
aNewP.removeAll()
aNewN.removeAll()
aNewTime.append(newDate.time)
aNewBl.append(newDate.blutzucker)
aNewK.append(newDate.ke)
aNewBo.append(newDate.bolusInsulin)
aNewBa.append(newDate.basalInsulin)
aNewBlu.append(newDate.blutdruck)
aNewP.append(newDate.puls)
aNewN.append(newDate.notiz)
self.snapshotCheckDate = newDate.snap6Date
}
}
}
}
}
}
self.postArrayValue = newItems
self.aHeaderDate = newItemsDate
self.aHeaderDate = self.uniq(source: self.aHeaderDate)
dimArrayNewTime.append(aNewTime)
dimArrayNewBl.append(aNewBl)
dimArrayNewK.append(aNewK)
dimArrayNewBo.append(aNewBo)
dimArrayNewBa.append(aNewBa)
dimArrayNewBlu.append(aNewBlu)
dimArrayNewP.append(aNewP)
dimArrayNewN.append(aNewN)
self.dimArrayTime = dimArrayNewTime
self.dimArrayBl = dimArrayNewBl
self.dimArrayK = dimArrayNewK
self.dimArrayBo = dimArrayNewBo
self.dimArrayBa = dimArrayNewBa
self.dimArrayBlu = dimArrayNewBlu
self.dimArrayP = dimArrayNewP
self.dimArrayN = dimArrayNewN
newItems.removeAll()
newItemsDate.removeAll()
aNewTime.removeAll()
aNewBl.removeAll()
aNewK.removeAll()
aNewBo.removeAll()
aNewBa.removeAll()
aNewBlu.removeAll()
aNewP.removeAll()
aNewN.removeAll()
dimArrayNewTime.removeAll()
dimArrayNewBl.removeAll()
dimArrayNewK.removeAll()
dimArrayNewBo.removeAll()
dimArrayNewBa.removeAll()
dimArrayNewBlu.removeAll()
dimArrayNewP.removeAll()
dimArrayNewN.removeAll()
self.tableView.reloadData()
}){
(error) in
print(error.localizedDescription)
}
}
For my Header:
override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let headerView = Bundle.main.loadNibNamed("TableViewCell1", owner: self, options: nil)?.first as! TableViewCell1
headerView.date.text = aHeaderDate[section]
headerView.backgroundColor = UIColor.white
return headerView
}
NumberOfRows:
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return dimArrayTime[section].count
}
Number of Headers:
override func numberOfSections(in tableView: UITableView) -> Int {
return aHeaderDate.count
}
Number of Cells:
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return dimArrayTime[section].count
}
Section:
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell2 = Bundle.main.loadNibNamed("TableViewCell2", owner: self, options: nil)?.last as! TableViewCell2
let sectionTime = dimArrayTime[indexPath.section][indexPath.row]
let sectionBl = dimArrayBl[indexPath.section][indexPath.row]
let sectionK = dimArrayK[indexPath.section][indexPath.row]
let sectionBo = dimArrayBo[indexPath.section][indexPath.row]
let sectionBa = dimArrayBa[indexPath.section][indexPath.row]
let sectionBlu = dimArrayBlu[indexPath.section][indexPath.row]
let sectionP = dimArrayP[indexPath.section][indexPath.row]
let sectionN = dimArrayN[indexPath.section][indexPath.row]
cell2.time.text = sectionTime
cell2.bl.text = sectionBl
cell2.k.text = sectionK
cell2.bo.text = sectionBo
cell2.ba.text = sectionBa
cell2.blu.text = sectionBlu
cell2.p.text = sectionP
cell2.n.text = sectionN
return cell2
}
addViewController:
#IBAction func saveInDatabaseFirebase(_ sender: Any) {
let userID = Firebase.Auth.auth().currentUser?.uid
let postRef = dataRef.child("DIOS").child(userID!).child(stringForDbYear).child(stringForDbMonth).child(stringForDbDay).child(stringForDbDate).child(stringForDbTime)
sDate = tFDate.text!
if tFBl.text == "" {
sBl = "-"
}
else{
sBl = tFBl.text!
}
if tFK.text == "" {
sK = "-"
}
else{
sK = tFK.text!
}
if tFBo.text == "" {
sBo = "-"
}
else{
sBo = tFBo.text!
}
if tFBa.text == "" {
sBa = "-"
}
else{
sBa = tFBa.text!
}
if tfBlu.text == "" {
sBlu = "-"
}
else{
sBlu = tfBlu.text!
}
if tFP.text == "" {
sP = "-"
}
else{
sP = tFP.text!
}
if tFN.text == "" {
sN = "-"
}
else{
sN = tFN.text!
}
let post = Post (date: stringForDbDate, time: stringForDbTime, day: stringForDbDay, bl: sBl, k: sK, bo: sBo, ba: sBa, blu: sBlu, p: sP, n: sN, snap1DIOS: "DIOS", snap2UserID: userID!, snap3Year: stringForDbYear, snap4Month: stringForDbMonth, snap5Day: stringForDbDay, snap6Date: stringForDbDate, snap7Time: stringForDbTime)
postRef.setValue(post.toAnyObject())
self.dismiss(animated: true, completion: nil);
}
Thank you very much for help