I have a problem handling 2 tables on the same screen. Every time he keeps crashing. Can someone help me?
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
var cell: TableViewCellComunicazioni?
if tableView == self.tableViewNotifica {
cell = tableView.dequeueReusableCell(withIdentifier: "cellNotifica", for: indexPath) as? TableViewCellComunicazioni
let dataNotifica = structNotifica[indexPath.row].dateNotifica
let testoNotifica = structNotifica[indexPath.row].textNotifica
cell?.dateNotification.text = "\(date!)"
cell?.textNotification.text = "\(text!)"
return cell!
}
if tableView == self.tableViewInbox {
cell = tableView.dequeueReusableCell(withIdentifier: "cellInbox", for: indexPath) as? TableViewCellComunicazioni
let email = structInbox[indexPath.row].email
let messaggio = structInbox[indexPath.row].messaggio
let data = structInbox[indexPath.row].data
cell?.emailInbox.text = "\(email!)"
cell?.messaggioInbox.text = "\(message!)"
cell?.dataInbox.text = "\(date!)"
return cell!
}
return UITableViewCell()
}
This could be a probable fix for your problem:
Coding Example:
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if tableView == self.tableViewNotifica {
let cell = tableView.dequeueReusableCell(withIdentifier: "cellNotifica", for: indexPath) as? TableViewCellComunicazioni
let dataNotifica = structNotifica[indexPath.row].dateNotifica
let testoNotifica = structNotifica[indexPath.row].textNotifica
cell?.dateNotification.text = "\(date!)"
cell?.textNotification.text = "\(text!)"
return cell!
}
if tableView == self.tableViewInbox {
let cell = tableView.dequeueReusableCell(withIdentifier: "cellInbox", for: indexPath) as? TableViewCellComunicazioni
let email = structInbox[indexPath.row].email
let messaggio = structInbox[indexPath.row].messaggio
let data = structInbox[indexPath.row].data
cell?.emailInbox.text = "\(email!)"
cell?.messaggioInbox.text = "\(message!)"
cell?.dataInbox.text = "\(date!)"
return cell!
}
return UITableViewCell()
}
And make sure that you have correct cell identifier for dequeuing.
extension ViewController : UITableViewDelegate,UITableViewDataSource {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return listmoviesArray.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if tableView == moviesTableView {
let cell = tableView.dequeueReusableCell(withIdentifier: "MovieTableViewCell", for: indexPath) as! MovieTableViewCell
cell.delegate = self
cell.setupCell(listmoviesArray[indexPath.row],indexPath: indexPath)
return cell
} else {
let cell = tableView.dequeueReusableCell(withIdentifier: "MovieTableViewCell2", for: indexPath) as! MovieTableViewCell
cell.delegate = self
cell.setupCell(listmoviesArray[indexPath.row],indexPath: indexPath)
return cell
}
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
if tableView == moviesTableView {
// Handle your selection for row.
} else {
//Handle your selection for row.
}
}
}
Above code produces the following output with 2 Tableview.
Related
in my swift code below when one tableview cell is deleted the tableview cells after is not showing a change in the place of the number. So when 2 is deleted what is left is 1 and 3 it should just state 1 and 2. I listed my code below with the delete function.
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let title = itemName[indexPath.row]
let cell = theScores.dequeueReusableCell(withIdentifier: "MyCell", for : indexPath)
cell.selectionStyle = .default
if let position = title.value(forKey: "positon") {
cell.textLabel?.text = "Item : \(title.positon))"
}
cell.textLabel?.text = "Item: \(title.positon)"
cell.textLabel?.textAlignment = .center
cell.layoutMargins = UIEdgeInsets.zero
cell.preservesSuperviewLayoutMargins = false
cell.separatorInset = UIEdgeInsets.zero
cell.layoutMargins = UIEdgeInsets.zero
return cell
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return itemName.count
}
var itemName : [Player] = []
func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCell.EditingStyle, forRowAt indexPath: IndexPath) {
if editingStyle == UITableViewCell.EditingStyle.delete {
let appd = UIApplication.shared.delegate as! AppDelegate
let context = appd.persistentContainer.viewContext
context.delete(itemName[indexPath.row])
itemName.remove(at: indexPath.row)
do {
try context.save()
}
catch {
print("d")
}
self.theScores.reloadData()
}
}
I have two Tableviews in one ViewController. But if I run this my code I will get this error on line let post = posts[indexPath.row]:
"Index out of range"
I think it has be something with the posts.count, but I can't figure it out. When I ran this code without the second Tableview Tableview_moremaps everything works just fine.
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if comments.count == 0 {
self.tableView.setEmptyMessage("No comments yet!")
} else {
self.tableView.restore()
}
if posts.count == 0 {
self.Tableview_moremaps.setEmptyMessage("No other maps yet!")
}else{
self.Tableview_moremaps.restore()
}
if tableView == tableView {
return comments.count
}else{
return posts.count
}
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if tableView == self.tableView {
let cell = tableView.dequeueReusableCell(withIdentifier: "Comment", for: indexPath) as? CommentTableViewCell
let comment = comments[indexPath.row]
cell?.comment = comment
cell?.delegate = self
return cell!
} else if tableView == Tableview_moremaps {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell") as? MoremapsTableViewCell
cell?.Map_image.image = nil
let post = posts[indexPath.row]
cell?.post = post
cell?.delegate = self
return cell!
}
return UITableViewCell()
}
In numberOfRowsInSection, update the if-condition
if tableView === self.tableView {
return comments.count
} else {
return posts.count
}
Currently tableView == tableView is always true and returned value is comments count.
I think the problem is in the way you're using cellForRowAt
Try giving each tableview an identifier with tableView.accessibilityIdentifier = "myIdentifier"
and then cellForRowAtwould be like following:
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if tableView.accessibilityIdentifier == "myIdentifier" {
let cell = .....
...
...
...
...
...
you can try this
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if tableView == self.tableView {
return comments.count
}
else{
return posts.count
}
}
//Your this code is perfect.(no issue here)
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if tableView == self.tableView {
let cell = tableView.dequeueReusableCell(withIdentifier: "Comment", for: indexPath) as? CommentTableViewCell
let comment = comments[indexPath.row]
cell?.comment = comment
cell?.delegate = self
return cell!
} else if tableView == Tableview_moremaps {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell") as? MoremapsTableViewCell
cell?.Map_image.image = nil
let post = posts[indexPath.row]
cell?.post = post
cell?.delegate = self
return cell!
}
return UITableViewCell()
}
I have two custom reusable table view cells in my table view. The first cell, I would like it to be present at all times. The second cell and beyond, are returning a count that is being passed from mysql database.
// return the amount of cell numbers
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return posts.count
}
// cell config
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if indexPath.row < 1 {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as! InfoCell
//set the data here
return cell
} else {
let Postcell = tableView.dequeueReusableCell(withIdentifier: "PostCell", for: indexPath) as! PostCell
let post = posts[indexPath.row]
let image = images[indexPath.row]
let username = post["user_username"] as? String
let text = post["post_text"] as? String
// assigning shortcuts to ui obj
Postcell.usernameLbl.text = username
Postcell.textLbl.text = text
Postcell.pictureImg.image = image
return Postcell
}
} // end of function
My first cell is there and so are the post.count, but for some reason the posts.count is missing one post and I believe this is because of the first cell. Can anybody help me with this? thanks in advance.
You need to adjust the value returned from numberOfRowsInSection to account for the extra row. And you would need to adjust the index used to access values from your posts array to deal with the extra row.
But a much better solution is to use two sections. The first section should be your extra row and the second section would be your posts.
func numberOfSections(in tableView: UITableView) -> Int {
return 2
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if section == 0 {
return 1
} else {
return posts.count
}
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if indexPath.section == 0 {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as! InfoCell
//set the data here
return cell
} else {
let Postcell = tableView.dequeueReusableCell(withIdentifier: "PostCell", for: indexPath) as! PostCell
let post = posts[indexPath.row]
let image = images[indexPath.row]
let username = post["user_username"] as? String
let text = post["post_text"] as? String
// assigning shortcuts to ui obj
Postcell.usernameLbl.text = username
Postcell.textLbl.text = text
Postcell.pictureImg.image = image
return Postcell
}
}
I have the following code thus far.
var someData = [SomeData]()
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if indexPath.row == 0 {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell1", for: indexPath) as! Cell1
return cell
} else {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell2", for: indexPath) as? Cell2
let someData = [indexPath.row]
//Set up labels etc.
return cell!
}
}
I need Cell1 which is a static cell and will always remain at indexPath 0 to be in a section called "Section1" for example & all of the Cell2's to be in a section called "Section2"
Other DataSource & Delegate Methods;
func numberOfSections(in tableView: UITableView) -> Int {
return 2
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if section == 0 {
return 1
} else {
return someData.count
}
}
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
if section == 0 {
return "Section1" }
else {
return "Section2"
}
}
This returns me everything I need for the first section, however, when it comes to the second section (because of the code inside cellForRowAtIndex somewhere) section 2 contains Cell2 at indexPath 0.
Any help greatly appreciated.
Root cause:
In cellForRowAtIndexPath check for indexPath.section instead of indexPath.row
Fix:
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if indexPath.section == 0 {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell1", for: indexPath) as! Cell1
return cell
} else {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell2", for: indexPath) as? Cell2
let someData = [indexPath.row]
//Set up labels etc.
return cell!
}
}
I would like that users can choose maximum one voice. And that the checkmark jumps to where you tapt and deselect the other.
It looks like very simple, but I don't see the solution. And I can't find the answer on the internet.
Please can anybody help me?
Thanks advance!
import UIKit
import AVFoundation
class voicesTableViewController: UITableViewController {
fileprivate let synthesizer = AVSpeechSynthesizer()
fileprivate var speechVoices = AVSpeechSynthesisVoice.speechVoices()
override func viewDidLoad() {
super.viewDidLoad()
}
// MARK: - Table view data source
override func numberOfSections(in tableView: UITableView) -> Int {
// #warning Incomplete implementation, return the number of sections
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// #warning Incomplete implementation, return the number of rows
return speechVoices.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
//Name
let voice = speechVoices[indexPath.row]
let voiceLang = voice.language as? String
let theVoice = UserDefaults.standard.object(forKey:"voice") as? String
cell.textLabel?.text = voice.name
// Language
if let language = countryName(countryCode: voice.language) {
cell.detailTextLabel?.text = "\(language)"
}
else {
cell.detailTextLabel?.text = ""
}
cell.detailTextLabel?.textColor = UIColor.gray
// Checkmark
if (theVoice != nil) {
if(theVoice == voiceLang) {
cell.accessoryType = UITableViewCellAccessoryType.checkmark
}
}
return cell
}
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let voice = speechVoices[indexPath.row]
if tableView.cellForRow(at: indexPath)?.accessoryType == UITableViewCellAccessoryType.checkmark {
tableView.cellForRow(at: indexPath)?.accessoryType = UITableViewCellAccessoryType.none
}
else
{
//if ((tableView.indexPathsForSelectedRows?.count)! > 1) {
tableView.cellForRow(at: indexPath)?.accessoryType = UITableViewCellAccessoryType.checkmark
//}
}
UserDefaults.standard.set(voice.language, forKey:"voice")
UserDefaults.standard.synchronize()
tableView.deselectRow(at: indexPath, animated: true)
}
func countryName(countryCode: String) -> String? {
let preferredLanguage = NSLocale.preferredLanguages[0] as String
let current = Locale(identifier: preferredLanguage)
return current.localizedString(forLanguageCode: countryCode) ?? nil
//return current.localizedString(forIdentifier: indentifier) ? nil
}
}
Simple change of function cellForRow:atIndexPathshould work:
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
//Name
let voice = speechVoices[indexPath.row]
let voiceLang = voice.language as? String
let theVoice = UserDefaults.standard.object(forKey:"voice") as? String
cell.textLabel?.text = voice.name
// Language
if let language = countryName(countryCode: voice.language) {
cell.detailTextLabel?.text = "\(language)"
}
else {
cell.detailTextLabel?.text = ""
}
cell.detailTextLabel?.textColor = UIColor.gray
// Checkmark
if(theVoice != nil && theVoice == voiceLang) {
cell.accessoryType = .checkmark
} else {
cell.accessoryType = .none
}
return cell
}
UPD#1
But you can use better solution:
1) Add property fileprivate var selectedIndexPath: IndexPath?
2) Change function func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath)to next one:
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
//Name
let voice = speechVoices[indexPath.row]
let voiceLang = voice.language as? String
let theVoice = UserDefaults.standard.object(forKey:"voice") as? String
cell.textLabel?.text = voice.name
// Language
if let language = countryName(countryCode: voice.language) {
cell.detailTextLabel?.text = "\(language)"
}
else {
cell.detailTextLabel?.text = ""
}
cell.detailTextLabel?.textColor = UIColor.gray
// Checkmark
cell.accessoryType = self.selectedIndexPath == indexPath ? .checkmark : .none
return cell
}
3) And then in func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) you can do next:
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let voice = speechVoices[indexPath.row]
self.selectedIndexPath = indexPath
UserDefaults.standard.set(voice.language, forKey:"voice")
UserDefaults.standard.synchronize()
tableView.deselectRow(at: indexPath, animated: true)
tableView.reloadRows(at: [indexPath], with: .automatic)
}