I need to create a drill down effect with my table views that will expand four table views deep for each of my original cells in my master table view. So far i was successful in populating the master view, and second table view accordingly with this Object Oriented Method, here is the code in my master table view:
class FirstTableViewController: UITableViewController {
let aSport:[Sport] = {
var basketball = Sport()
basketball.name = "Basketball"
basketball.sportCategories = {
var temp = ["International Basketball","Wheelchair Basketball","Beach Basketball","Deaf Basketball","Dwarf Basketball"]
temp.sort(<)
return temp
}()
var golf = Sport()
golf.name = "Golf"
golf.sportCategories = {
var temp = ["Miniature Golf","Dart Golf","Sholf","Disc Golf","Footgolf"]
temp.sort(<)
return temp
}()
var football = Sport()
football.name = "Football"
football.sportCategories = {
var temp = ["Flag Football","Indoor Football","Arena Football","Non-Tackle Football","Paper Football"]
temp.sort(<)
return temp
}()
var swimming = Sport()
swimming.name = "Swimming"
swimming.sportCategories = {
var temp = ["Competitive Swimming","Synchronized Swimming","Duo Swimming","Relay Swimming"]
temp.sort(<)
return temp
}()
return [basketball,golf,football,swimming]
}()
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return aSport.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as! UITableViewCell
cell.textLabel?.text = aSport[indexPath.row].name
return cell
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
let cell = sender as! UITableViewCell
let row = tableView.indexPathForCell(cell)?.row
let detail = segue.destinationViewController as! SecondTableViewController
detail.selectedSport = aSport[row!]
}
}
class Sport {
var name: String = "sport name"
var sportCategories: NSArray = ["variations of selected sport"]
var detailText: NSArray = ["little description of sport"]
}
here is the code in my second table view controller:
class SecondTableViewController: UITableViewController {
var selectedSport = Sport();
override func viewDidLoad() {
super.viewDidLoad()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return selectedSport.sportCategories.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("Custom", forIndexPath: indexPath) as! UITableViewCell
cell.textLabel!.text = selectedSport.sportCategories[indexPath.row] as? String
cell.detailTextLabel!.text = selectedSport.detailText[indexPath.row] as? String
return cell
}
}
here are screenshots from my simulator so you get a visual:
https://40.media.tumblr.com/6ee47f49c2b223b514f8067c68ac6af1/tumblr_nqbe74HYGo1tupbydo1_500.png
when basketball is selected:
https://41.media.tumblr.com/ced0ee2ff111a557ec3c21f1fb765adf/tumblr_nqbe74HYGo1tupbydo2_500.png
Now as you can see, i was able to populate the first two views by creating a custom class, creating custom objects of that class and using the properties within the class. Now my dilemma is, each of the "sportCategories" properties have their OWN table views to expand to which will consist of a whole list of names of players in that respective sport. Now what method should i go about doing this? should i create a whole new class in my second table view controller to give the sportsCategories their own properties? or is there a way i can already expand off the work I've already done? a more efficient way?
Related
I have a function which prints all the objects in my realm table to a table view. I would like to be able to filter these objects by their "muscle" property.
Here's my DB helper functions:
func getMusclesCount()-> Int {
let storedExercise = realm.objects(StoredExercise.self)
return storedExercise.count
}
//MARK:- getAllMuscelsNames
func getAllMusclesNames()-> [String] {
var musclesName = [String]()
let storedExercise = realm.objects(StoredExercise.self)
for exercise in storedExercise {
print("Muscle = \(exercise.muscle)")
musclesName.append(exercise.name)
}
return musclesName
}
Here's my Table View Controller class :
class TableViewController: UITableViewController {
override func viewDidLoad() {
super.viewDidLoad()
}
override func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return DBHelper.shared.getAllMusclesNames().count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
var cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
if cell == nil {
cell = UITableViewCell(style: .default, reuseIdentifier: "cell")
}
let muscle = DBHelper.shared.getAllMusclesNames()[indexPath.row]
cell.textLabel?.text = muscle
return cell
}
I've tried adding .Filter to 'let storedExercise' but I'm not sure how to set it up correctly. Any assitance would be greatly appreciated, thanks.
If your StoredExercise model looks like this
class StoredExercise: Object {
#objc dynamic var muscle = ""
}
then to get all of the exercises that are for the biceps, it's this
let bicepResults = realm.objects(StoredExercise.self).filter("muscle == 'biceps'")
I need to pass my array of ProductNames, to ProductSelectionViewController(VCB) From HomeViewController(VCA)
The issue is that it will only pass the first item. Ex:
If I tap on the cell called "ITEM 1" it passes only "Alk1" rather than "Alk1", "Alk2", "Alk3"
I used print statements and it is passing the Parameter correctly, I can't grasp the reason it will not pass the entire array.
NOTE: segue is from the cell in storyboard to the second VC
The Data Model:
class Parameter {
var parameterName: String
var productName: [String]
init(parameterName: String, productName: [String] = []) {
self.parameterName = parameterName
self.productName = productName
}
}
Home View Controller (VCA):
var parameters: [Parameter] = [
Parameter(parameterName: "Item1", productName: ["Alk1", "Alk2", "Alk3"]),
Parameter(parameterName: "Item2", productName: ["Cal1", "Cal2", "Cal3"]),
Parameter(parameterName: "Item3", productName: ["mag1", "mag3", "mag2"])
]
// MARK: - View life cycle
override func viewDidLoad() {
super.viewDidLoad()
prepareCollectionView()
}
// MARK: - UICollectionViewDataSource
override func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return parameters.count
}
#objc override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
guard let cell = collectionView.dequeueReusableCell(withReuseIdentifier: ParameterCell.identifier, for: indexPath) as? ParameterCell
else { preconditionFailure("Failed to load collection view cell") }
cell.parameter = parameters[indexPath.row]
cell.backgroundColor = colors[indexPath.row]
return cell
}
// MARK: - UICollectionView Delegates
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
guard let productViewController = segue.destination as? ProductSelectionViewController else {
fatalError()
}
if segue.identifier == HomeViewController.productSegueIdentifier {
if let indexPaths = collectionView.indexPathsForSelectedItems {
let indexPath = indexPaths[0]
print("\(String(describing: indexPath))")
let productList = parameters[indexPath.row] as Parameter
productViewController.products = [productList]
}
}
}
The ProductSelectionViewController (VCB)
class ProductSelectionViewController: UITableViewController {
var products = [Parameter]()
override func viewDidLoad() {
super.viewDidLoad()
// label.text = products?.parameterName
print("The sent data is: \(products)")
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
print("Amount of Product \(products.count)")
return products.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
let productItem = products[indexPath.row].productName
cell.textLabel?.text = productItem![indexPath.row]
//let p = products.productNames
//ce/ll.textLabel?.text = p[indexPath.row]
return cell
}
I expect the table view to present an array of the items being sent. i.e if Item 1 is tapped, the table view should represent "Alk1, Alk2, Alk3" for a total of three cells.
I am only getting one cell for "Alk1"
in numberOfRowsInSection, I used a print statement to see how many object are counted with
print("There are \(products.count) items")
return output:
There are 1 items
There are 1 items
There are 1 items
Yes,
On your prepareForSegue you create an array with [productList] but product list is only one item, the one that got selected, not the names it has inside.
In your ProductSelectionViewController then use products.productName.count because thats the array you want and in cellForRow do let productItem = products[0].productName[indexPath.row] so you can get the correct one.
But you can improve your code way more if you pass the correct array of productNames instead of creating an array manually and inserting the one Parameter object instead of the productNames it contains
let productList = parameters[indexPath.row] as Parameter
let names: [String] = productList.productName
productViewController.products = names
I'm trying to segue from one UITableView to another UITableView. I want to segue and pass the myCell.textLabel?.text value of the selected cell to the second UITableView.
The code for my first UITableView (MenuTypeTableViewController and the code for my second UITableView (TypeItemsTableViewController) is also below.
I'm fully aware this involves the prepareForSegue function which currently I've not created, purely because I'm unsure where I override it and how to pass in the textLabel value to it.
Hope my question makes sense, I will update with suggestions and edits.
class MenuTypeTableViewController: UITableViewController, MenuTypeServerProtocol {
//Properties
var cellItems: NSArray = NSArray()
var menuType: MenuTypeModel = MenuTypeModel()
override func viewDidLoad() {
super.viewDidLoad()
let menuTypeServer = MenuTypeServer()
menuTypeServer.delegate = self
menuTypeServer.downloadItems()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
// MARK: - Table view data source
override func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return cellItems.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cellIdentifier: String = "cellType"
let myCell: UITableViewCell = tableView.dequeueReusableCell(withIdentifier: cellIdentifier)!
let item: MenuTypeModel = cellItems[indexPath.row] as! MenuTypeModel
myCell.textLabel?.text = item.type
return myCell
}
func itemsDownloaded(items: NSArray) {
cellItems = items
tableView.reloadData()
}
}
class TypeItemsTableViewController: UITableViewController, TypeItemsServerProtocol {
//Properties
var cellItems: NSArray = NSArray()
var typeItemList: TypeItemsModel = TypeItemsModel()
override func viewDidLoad() {
super.viewDidLoad()
let typeItemsServer = TypeItemsServer()
typeItemsServer.delegate = self
typeItemsServer.downloadItems()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
// MARK: - Table view data source
override func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return cellItems.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cellIdentifier: String = "cellTypeItem"
let myCell: UITableViewCell = tableView.dequeueReusableCell(withIdentifier: cellIdentifier)!
let item: TypeItemsModel = cellItems[indexPath.row] as! TypeItemsModel
myCell.textLabel?.text = item.name
return myCell
}
func itemsDownloaded(items: NSArray) {
cellItems = items
tableView.reloadData()
}
}
Hi try the following set of code, I have added few additional changes in your code make use of it, I hope it will solve your issue.
I have added only the extra codes which you needed
class TypeItemsTableViewController: UITableViewController, TypeItemsServerProtocol {
// Add this variable in this class and use it whereever you needed it in this class
var selectedItem: String?
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
// Get the selected cell
let selectedCell = tableView.cellForRow(at: indexPath)
// Now maintain the text which you want in this class variable
selectedItem = selectedCell?.textLabel?.text
// Now perform the segue operation
performSegue(withIdentifier: "TypeItemsTableViewController", sender: self)
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "TypeItemsTableViewController" {
let destinationVC = segue.destination as? TypeItemsTableViewController
destinationVC?.selectedItem = self.selectedItem // Pass the selected item here which we have saved on didSelectRotAt indexPath delegate
}
}
In Second class:
class TypeItemsTableViewController: UITableViewController, TypeItemsServerProtocol {
// Add this variable in this class and use it whereever you needed it in this class
var selectedItem: String?
What you can do is to make a variable in your second UITableView
var String: labelSelected?
then in you prepare for segue method just set the labelSelected to the value of the cell.
refToTableViewCell.labelSelected = youCell.textlabel?.text
If you set up a segue in storyboards from one storyboard to another, you can use the code below in your prepareForSegue method. You'll need to add a testFromMenuTableViewController property to your TypeItemsTableViewController.
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if let destination = segue.destination as? TypeItemsTableViewController,
let path = self.tableView.indexPathForSelectedRow,
let cell = self.tableView.cellForRow(at: path),
let text = cell.textLabel?.text {
destination.textFromMenuTypeTableViewController = text
}
}
For more info check this SO answer.
I am trying to pass data from my Cheats struct into a new tableviewcontroller to populate the new table with the relevant info.
I have done research but am new to swift.
I do have experience in php but transferring my knowledge is proving quite difficult...
In my prepare for segue class i receive a few errors:
Definition conflicts with previous value:
var DataPass = CheatsArray[indexPath.row]
Cannot assign value type 'String' to '[String]':
DestViewController.CheatsArray = DataPass.name
Here is a copy of my current 3 files
Structs and arrays:
struct Game {
var name : String
var cheats : [Cheat]
}
struct Cheat {
var name : String
var code : String
var description : String
}
// Create Our Game Info And Cheats / Codes For Each Game!
//-------------------------------------------------------
let COD4 = Game(name: "Call Of Duty 4", cheats: [Cheat(name: "Cheat", code: "Code", description: "Description")])
let GTAV = Game(name: "Grand Theft Auto 5", cheats: [Cheat(name: "Cheat", code: "Code", description: "Description")])
// Place Our New Games Inside This Array!
//---------------------------------------
let ArrayOfGames = [COD4,GTAV]
GameListController:
import Foundation
import UIKit
class GamesListViewController: UITableViewController {
var CheatsArray = [Game]()
override func viewDidLoad() {
super.viewDidLoad()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return ArrayOfGames.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = self.tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath)
cell.textLabel?.text = ArrayOfGames[indexPath.row].name
return cell
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
let indexPath : NSIndexPath = self.tableView.indexPathForSelectedRow!
let DestViewController = segue.destinationViewController as! CheatsListViewController
let DataPass : Game
var DataPass = CheatsArray[indexPath.row]
DestViewController.CheatsArray = DataPass.name
}
}
CheatListController:
class CheatsListViewController: UITableViewController {
var CheatsArray = [String]()
override func viewDidLoad() {
super.viewDidLoad()
}
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return CheatsArray.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = self.tableView.dequeueReusableCellWithIdentifier("cell2", forIndexPath: indexPath)
cell.textLabel?.text = CheatsArray[indexPath.row]
return cell
}
}
The first error is because you defined DataPass twice, one row after another. You can't do that in the same scope. Change the name of one.
The second error is because you cannot assign value type 'String' to '[String]'. Just looking at CheatsArray and name variables, it's clear the first is an array and the second is most likely a string. You might want to append the name to the array.
I am trying to add a cell to my table view with a button. Everything I have read and watched suggests that what I have written should work, but it doesn't. Any suggestions?
import UIKit
class RootViewController: UITableViewController, UITableViewDataSource, UITableViewDelegate {
private var cellPointSize: CGFloat!
private var albumsList: AlbumList!
private var albums:[Album]!
private let albumCell = "Album"
#IBOutlet var myTableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
let preferredTableViewFont = UIFont.preferredFontForTextStyle(UIFontTextStyleHeadline)
cellPointSize = preferredTableViewFont.pointSize
albumsList = AlbumList.sharedAlbumList
albums = albumsList.albums
self.myTableView.dataSource = self
self.myTableView.delegate = self
}
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
tableView.reloadData()
}
// MARK: - Table view data source
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// Return the number of rows in the section.
return albums.count
}
override func tableView(tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return "Albums"
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = myTableView.dequeueReusableCellWithIdentifier(albumCell, forIndexPath: indexPath) as! UITableViewCell
//cell.textLabel?.font = fontForDisplay(atIndexPath: indexPath)
cell.textLabel?.text = albums[indexPath.row].name
cell.detailTextLabel?.text = albums[indexPath.row].artist
return cell
}
#IBAction func addNewAlbumAction(sender: UIBarButtonItem) {
var newAlbum = Album(nameIn: "New Title", yearIn: "New Year", artistIn: "New Artist", labelIn: "New Label")
albumsList.addAlbum(newAlbum)
dispatch_async(dispatch_get_main_queue(), { () -> Void in
self.myTableView.reloadData()
})
}
func saveData(albumObject: Album) {
var archiveArray = NSMutableArray(capacity: albums.count)
for a in albums {
var albumEncodedObject = NSKeyedArchiver.archivedDataWithRootObject(a)
archiveArray.addObject(albumEncodedObject)
}
var userData = NSUserDefaults()
userData.setObject(archiveArray, forKey: "albums")
userData.synchronize()
}
My albums array is adding the data correctly. I can see the albums in the debugger. The delegate methods are never being called after the first time when the app loads. Any ideas?
in tableView:numberOfRowsInSection:, it returns albums.count
but when the button is pressed, you add the new album to albumsList
The problem is, albums will not get update.
So I think you should return albumsList.albums.count instead.
and in tableView:cellForRowAtIndexPath:, you modify the cell correspond to albumsList.albums[indexPath.row]