Hi guys I have been trying for few days no answer found . I have already implemented UITableViewDelegate and UITableViewDataSource before raising this question my didSelectRowAt and didDeselectRowAt, both the methods are not working.
class SearchClass: UIViewController, UITableViewDataSource,UITableViewDelegate, UISearchBarDelegate {
#IBOutlet weak var myTableView: UITableView!
#IBOutlet weak var mySearchBar: UISearchBar!
var objects:PFObject!
var searchResults = [String]()
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
self.navigationController?.navigationBar.topItem?.title = "Search"
self.navigationController?.navigationBar.barTintColor = UIColor.white
self.navigationController?.navigationBar.backgroundColor = UIColor.black
self.navigationController?.navigationBar.tintColor = UIColor.black
self.searchResults.removeAll()
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
self.myTableView.dataSource = self
self.mySearchBar.delegate = self
self.myTableView.delegate = self
self.navigationController?.extendedLayoutIncludesOpaqueBars = true
//self.myTableView.reloadData()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func searchBarSearchButtonClicked(_ searchBar: UISearchBar)
{
searchBar.resignFirstResponder()
// self.navigationController?.navigationBar.isHidden = false
self.mySearchBar.endEditing(true)
print("Search word = \(searchBar.text)")
let query = PFQuery(className:"myClass")
//let newText = searchBar.autocapitalization
searchBar.autocapitalizationType = .none
searchBar.text = searchBar.text?.localizedLowercase
query.whereKey("collegeNickName", contains: searchBar.text)
query.findObjectsInBackground { (results, error) in
if error == nil {
if let objects = results {
self.searchResults.removeAll(keepingCapacity: true)
for object in objects {
let firstName = object.object(forKey: "myName") as! String
let image = object.object(forKey: "myImage") as! PFFile
// let lastName = object.object(forKey: "myPlace") as! String
// let fullName = firstName + " " + lastName
self.searchResults.append(firstName)
print(self.searchResults[0])
DispatchQueue.main.async {
self.myTableView.reloadData()
self.mySearchBar.resignFirstResponder()
}
}
}
} else {
let myAlert = UIAlertController(title:"Alert", message:error?.localizedDescription, preferredStyle:UIAlertControllerStyle.alert)
let okAction = UIAlertAction(title: "Ok", style: UIAlertActionStyle.default, handler: nil)
myAlert.addAction(okAction)
self.present(myAlert, animated: true, completion: nil)
return
}
}
}
func searchBarTextDidBeginEditing(_ searchBar: UISearchBar) {
//self.navigationController?.navigationBar.isHidden = true
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
return searchResults.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
{
myTableView.register(UITableViewCell.self, forCellReuseIdentifier: "myCell")
let myCell = myTableView.dequeueReusableCell(withIdentifier: "myCell")
myCell?.textLabel?.text = searchResults[indexPath.row]
print(searchResults[indexPath.row])
return myCell!
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
print("Hi")
}
func tableView(_ tableView: UITableView, didDeselectRowAt indexPath: IndexPath) {
}
func searchBarCancelButtonClicked(_ searchBar: UISearchBar)
{
mySearchBar.resignFirstResponder()
mySearchBar.text = ""
myTableView.reloadData()
}
func searchBarTextDidEndEditing(_ searchBar: UISearchBar) {
//self.mySearchBar.resignFirstResponder()
//self.mySearchBar.endEditing(true)
self.definesPresentationContext = true
}
#IBAction func refreshButtonTapped(sender: AnyObject) {
mySearchBar.resignFirstResponder()
mySearchBar.text = ""
self.searchResults.removeAll(keepingCapacity: false)
self.myTableView.reloadData()
}
}
Also it implements a searchView I'm getting what I want to search but unable use select and deselect methods in my class.
self.myTableView.dataSource = self
self.myTableView.delegate = self
<--- add this.
Noticed that you've set delegate in the storyboard as view instead of your UIViewController
see Discover - that's mine UViewController
In Interface Builder
Connect dataSource and delegate of My Table View to SearchClass
Then you can delete redundant self.myTableView.dataSource = self in SearchClass
Consider that connections in Interface Builder are more efficient than in code.
Declaration of cell is wrong. you have done this below code
let myCell = myTableView.dequeueReusableCell(withIdentifier: "myCell")
Right format
let myCell = tableView.dequeueReusableCell(withIdentifier: "myCell")
Reason: When you use dequeue property, then UITableView dequeue its cell by the param it got from the method
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
see there is a param tableView but you are dequeing by the outllet of UITableView.
Related
I am trying to filter custom UITableViewCells, based on one of the UILabels present in the cell.
All of the data is parsed from remote JSON, which has the model locally named Item and currently I am displaying the following in each cell successfully:
var titleLabel = UILabel()
var descriptionLabel = UILabel()
Also defined in my ItemTableViewCell class is:
func set(product: Item) {
DispatchQueue.main.async { [weak self] in
self?.titleLabel.text = item.title
self?.descriptionLabel.text = item.listPrice
}
}
These are called within my main View Controller, to which I have added a searchBar successfully and is visible within the app:
import Foundation
import UIKit
class ItemsListViewController: UIViewController {
var items = [Items]()
var itemsSearch: [Items] = []
var tableView = UITableView()
var searchController = UISearchController()
struct Cells {
static let itemCell = "ItemCell"
}
override func viewDidLoad() {
super.viewDidLoad()
configureTableView()
configureSearchController()
}
func configureSearchController() {
searchController = UISearchController(searchResultsController: nil)
navigationItem.searchController = searchController
navigationItem.hidesSearchBarWhenScrolling = false
searchController.searchBar.placeholder = "Search items"
definesPresentationContext = true
var isSearchBarEmpty: Bool {
return searchController.searchBar.text?.isEmpty ?? true
}
}
func configureTableView() {
view.addSubview(tableView)
setTableViewDelegates()
tableView.rowHeight = 100
tableView.pin(to: view)
tableView.register(itemTableViewCell.self, forCellReuseIdentifier: Cells.itemCell)
}
func setTableViewDelegates() {
tableView.delegate = self
tableView.dataSource = self
}
}
extension itemsListViewController: UITableViewDelegate, UITableViewDataSource {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return items.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: Cells.itemCell) as! itemTableViewCell
let item = items[indexPath.row]
cell.set(item: item)
return cell
}
}
extension ItemsListViewController: UISearchResultsUpdating {
func updateSearchResults(for searchController: UISearchController) {
let searchBar = searchController.searchBar
}
}
How can I filter these cells so say for instance a user searches for "Food", the only items which return would be ones which have a cell titleLabel = "food"?
I've tried to implement a function similar to the below, however it fails to achieve what I am after:
func filterContentForSearchText(_ searchText: String, category: = nil) {
let cell = tableView.dequeueReusableCell(withIdentifier: Cells.productCell) as! ProductTableViewCell
productsSearch = products.filter { (cell: cell) -> Bool in
return products.name.lowercased().contains(searchText.lowercased())
}
tableView.reloadData()
}
Thanks in advance for any help here.
You can not filter TableViewCells. You have to filter your model data and instead of using UISearchResultsUpdating you should use UISearchBarDelegate
I have modified your code, check it.
class ItemsListViewController: UIViewController {
var items = [Items]()
var itemsSearch: [Items] = []
var filterActive = false
var tableView = UITableView()
var searchController = UISearchController()
struct Cells {
static let itemCell = "ItemCell"
}
override func viewDidLoad() {
super.viewDidLoad()
configureTableView()
configureSearchController()
}
func configureSearchController() {
searchController = UISearchController(searchResultsController: nil)
navigationItem.searchController = searchController
navigationItem.hidesSearchBarWhenScrolling = false
searchController.searchBar.placeholder = "Search items"
searchController.searchBar.delegate = self
definesPresentationContext = true
}
func configureTableView() {
view.addSubview(tableView)
setTableViewDelegates()
tableView.rowHeight = 100
tableView.pin(to: view)
tableView.register(itemTableViewCell.self, forCellReuseIdentifier: Cells.itemCell)
}
func setTableViewDelegates() {
tableView.delegate = self
tableView.dataSource = self
}
}
extension ItemsListViewController: UITableViewDelegate, UITableViewDataSource {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return filterActive ? itemsSearch.count : items.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: Cells.itemCell) as! itemTableViewCell
let item = filterActive ? itemsSearch[indexPath.row] : items[indexPath.row]
cell.set(item: item)
return cell
}
}
extension ItemsListViewController: UISearchBarDelegate {
func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {
filterItems(text: searchController.searchBar.text)
}
func filterItems(text: String?) {
guard let text = text else {
filterActive = false
self.tableView.reloadData()
return
}
self.itemsSearch = self.items.filter({ (item) -> Bool in
return item.title.lowercased().contains(text.lowercased())
})
filterActive = true
self.tableView.reloadData()
}
// Edited Version
func searchBarCancelButtonClicked(_ searchBar: UISearchBar) {
searchBar.text = nil
filterActive = false
self.tableView.reloadData()
}
}
You are doing it the wrong way.
You should not filter the cells, but instead filter the model (e.g. add and remove entries to the table view data source)
Then call reloadData - this will then access the filtered model (in cellForRowAt and create only the filtered amount of (visible) cells
To improve, use a diffable data source
I am making a simple tableview with a customCell. and a searchBar above. but getting a strange behavior from tableView. customCell is showing but above it defaultCell is showing as well and data is getting populated into the defaultCell though i am setting data on my customCell.
this is the output i am getting
https://i.imgur.com/xsTIsiz.png
if you look at it closely you will see my custom cell UI is showing under the default cell.
My custom cell:
https://i.imgur.com/J4UpRle.png
This is my code from viewcontroller
import UIKit
class SuraSearchController: UIViewController {
let searchController = UISearchController(searchResultsController: nil)
let reciters = [Reciter(name: "Abdul Basit Abdus Samad", downloadUrl: ""),
Reciter(name: "Abdul Rahman Al-Sudais", downloadUrl: ""),
Reciter(name: "Ali Bin Abdur Rahman Al Huthaify", downloadUrl: ""),
Reciter(name: "Mishary Rashid Alafasy", downloadUrl: ""),
Reciter(name: "Cheik Mohamed Jibril", downloadUrl: ""),
Reciter(name: "Mohamed Siddiq El-Minshawi", downloadUrl: ""),
Reciter(name: "Mahmoud Khalil Al-Hussary", downloadUrl: ""),
Reciter(name: "Ibrahim Walk (English Only)", downloadUrl: ""),
Reciter(name: "Abu Bakr Al Shatri", downloadUrl: "")]
var filteredReciters = [Reciter]()
#IBOutlet weak var tableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
// definesPresentationContext = true
initNavBar()
initTableView()
// Do any additional setup after loading the view.
}
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(animated)
self.navigationController?.setNavigationBarHidden(true, animated: animated)
}
func initNavBar() {
// show navbar
self.navigationController?.setNavigationBarHidden(false, animated: true)
// set search bar delegates
searchController.searchResultsUpdater = self
searchController.obscuresBackgroundDuringPresentation = false
// Customize Search Bar
searchController.searchBar.placeholder = "Search Friends"
let myString = "Cancel"
let myAttribute = [ NSAttributedStringKey.foregroundColor: UIColor.white ]
UIBarButtonItem.appearance(whenContainedInInstancesOf: [UISearchBar.self]).title = myString
UIBarButtonItem.appearance(whenContainedInInstancesOf: [UISearchBar.self]).setTitleTextAttributes(myAttribute, for: .normal)
if #available(iOS 11.0, *) {
let scb = searchController.searchBar
scb.tintColor = UIColor.white
scb.barTintColor = UIColor.white
if let textfield = scb.value(forKey: "searchField") as? UITextField {
textfield.textColor = UIColor.blue
if let backgroundview = textfield.subviews.first {
// Background color
backgroundview.backgroundColor = UIColor.white
// Rounded corner
backgroundview.layer.cornerRadius = 10
backgroundview.clipsToBounds = true
}
}
}
// Set search bar on navbar
navigationItem.searchController = searchController
navigationItem.hidesSearchBarWhenScrolling = false
}
func initTableView() {
tableView.dataSource = self
tableView.delegate = self
tableView.register(UINib(nibName: "SuraSearchCell", bundle: nil), forCellReuseIdentifier: "SuraSearchCell")
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func searchBarIsEmpty() -> Bool {
// Returns true if the text is empty or nil
return searchController.searchBar.text?.isEmpty ?? true
}
func filterContentForSearchText(_ searchText: String, scope: String = "All") {
filteredReciters = reciters.filter({( reciter : Reciter) -> Bool in
return reciter.name.lowercased().contains(searchText.lowercased())
})
tableView.reloadData()
}
func isFiltering() -> Bool {
return searchController.isActive && !searchBarIsEmpty()
}
/*
// MARK: - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
// Get the new view controller using segue.destinationViewController.
// Pass the selected object to the new view controller.
}
*/
}
extension SuraSearchController: UITableViewDataSource, UITableViewDelegate {
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if isFiltering() {
return filteredReciters.count
}
return reciters.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if let cell = tableView.dequeueReusableCell(withIdentifier: "SuraSearchCell", for: indexPath) as? SuraSearchCell {
let candy: Reciter
if isFiltering() {
candy = filteredReciters[indexPath.row]
} else {
candy = reciters[indexPath.row]
}
cell.textLabel!.text = candy.name
return cell
}
return UITableViewCell()
}
}
extension SuraSearchController: UISearchResultsUpdating {
// MARK: - UISearchResultsUpdating Delegate
func updateSearchResults(for searchController: UISearchController) {
filterContentForSearchText(searchController.searchBar.text!)
}
}
And code of the tableview cell
import UIKit
class SuraSearchCell: UITableViewCell {
#IBOutlet weak var itemTitle: UILabel!
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
func configureCell(item: Reciter) {
itemTitle.text = item.name
}
}
cell.textLabel is default UITableViewCell property. you just need to set value to your customCell itemTitle label.
Replace cell.textLabel!.text = candy.name with cell. itemTitle!.text = candy.name like below.
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if let cell = tableView.dequeueReusableCell(withIdentifier: "SuraSearchCell", for: indexPath) as? SuraSearchCell {
let candy: Reciter
if isFiltering() {
candy = filteredReciters[indexPath.row]
} else {
candy = reciters[indexPath.row]
}
cell. itemTitle!.text = candy.name
//OR
cell.configureCell(candy) // IF your candy is of Reciter type
return cell
}
return UITableViewCell()
}
There may be a mistake with reuse identifier name. Match the name with the used one in the code.
Let update cellForRowAtIndex as below
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if let cell = tableView.dequeueReusableCell(withIdentifier: "SuraSearchCell", for: indexPath) as? SuraSearchCell {
let candy: Reciter
if isFiltering() {
candy = filteredReciters[indexPath.row]
} else {
candy = reciters[indexPath.row]
}
cell.configureCell(candy)
return cell
}
return UITableViewCell()
}
I have searchbar in my table view I want to auto search or auto-paste text in search bar when we have copied text
can I do it?
it is source code
import UIKit
class TableViewController: UITableViewController, UISearchBarDelegate {
var listEnWord = [EnWordModel]()
var filteredWord = [EnWordModel]()
var inSearchMode = false
var dbHelper = DatabaseHelper()
override func viewDidLoad() {
super.viewDidLoad()
searchaWord()
loadAllWords()
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
self.navigationController?.setNavigationBarHidden(false, animated: animated)
}
func loadAllWords(){
listEnWord = dbHelper.getAllEnWord()
tableView.dataSource = self
tableView.delegate = self
}
func searchaWord(){
let searchBar = UISearchBar()
self.view.addSubview (searchBar)
searchBar.delegate = self
searchBar.returnKeyType = UIReturnKeyType.done
navigationItem.titleView = searchBar
}
func searchBarCancelButtonClicked(_ searchBar: UISearchBar) {
self.view.endEditing(true)
}
override func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if inSearchMode {
return filteredWord.count
}
return listEnWord.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell") as! ItemMenuCell
if inSearchMode {
cell.enword = filteredWord[indexPath.row]
} else {
cell.enword = listEnWord[indexPath.row]
}
return cell
}
func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {
if searchBar.text == nil || searchBar.text == "" {
inSearchMode = false
tableView.reloadData()
self.view.endEditing(true)
} else {
inSearchMode = true
let lower = searchBar.text!.lowercased()
filteredWord = listEnWord.filter({$0.Word?.range(of: lower, options: .anchored ) != nil})
tableView.reloadData()
tableView.setContentOffset(CGPoint.zero, animated: true)
self.view.endEditing(true)
}
}
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
if inSearchMode {
Singleton.ShareInstance.enwordSelected = filteredWord[indexPath.row]
} else {
Singleton.ShareInstance.enwordSelected = listEnWord[indexPath.row]
}
let des = storyboard?.instantiateViewController(withIdentifier: "DetailController")
navigationController?.pushViewController(des!, animated: true )
}
}
thanks for helping me
Sure, seems like you are looking for a way to auto search text in your clipboard. So first register clipboard text change listener in this way. Note that it only works within your application:
NotificationCenter.default.addObserver(self, selector: #selector(clipboardChanged),
name: NSNotification.Name.UIPasteboardChanged , object: nil)
Then handle the it by this function
func clipboardChanged(){
let pasteboardString: String? = UIPasteboard.general.string
if let theString = pasteboardString {
print("String is \(theString)")
// Put the string into your search bar and do the search
}
}
I tried to implement a UISearchController into my ViewController. However, when I try to open up the Controller from a button it crashes the application and there is no error given to me from Xcode. I am using Backendless to store users and to retrieve them. I want to search through them.
Here is my code. I don't know what I am doing wrong :/ I would really appreciate the help.
import UIKit
protocol ChooseUserDelegate {
func chreatChatroom(withUser: BackendlessUser)
}
class ChooseUserViewController: UIViewController, UITableViewDelegate, UITableViewDataSource, UISearchResultsUpdating {
#IBOutlet weak var tableView: UITableView!
var delegate: ChooseUserDelegate!
var users: [BackendlessUser] = []
var filteredUsers = [BackendlessUser]()
var resultSearchController: UISearchController!
override func viewDidLoad() {
super.viewDidLoad()
loadUsers()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
//MARK: UITableviewDataSorce
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
func updateSearchResultsForSearchController(searchController: UISearchController) {
self.filteredUsers.removeAll(keepCapacity: false)
let searchPredicate = NSPredicate(format: "SELF CONTAINS[c] %#", searchController.searchBar.text!); let array = (self.users as NSArray).filteredArrayUsingPredicate(searchPredicate)
self.filteredUsers = array as! [BackendlessUser]
self.tableView.reloadData()
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if resultSearchController.active
{
return self.filteredUsers.count
} else {
return users.count
}
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as UITableViewCell?
if self.resultSearchController.active
{
let userFiltered = filteredUsers[indexPath.row]
cell!.textLabel?.text = userFiltered.name
} else {
let user = users[indexPath.row]
cell!.textLabel?.text = user.name
}
return cell!
}
//MARK: UITableviewDelegate
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
let user = users[indexPath.row]
delegate.chreatChatroom(user)
tableView.deselectRowAtIndexPath(indexPath, animated: true)
self.dismissViewControllerAnimated(true, completion: nil)
}
//MARK: IBactions
#IBAction func cancelButtonPressed(sender: AnyObject) {
self.dismissViewControllerAnimated(true, completion: nil)
}
//MARK: Load Backendless Users
func loadUsers() {
let whereClause = "objectId != '\(backendless.userService.currentUser.objectId)'"
let dataQuery = BackendlessDataQuery()
dataQuery.whereClause = whereClause
let dataStore = backendless.persistenceService.of(BackendlessUser.ofClass())
dataStore.find(dataQuery, response: { (users : BackendlessCollection!) -> Void in
self.users = users.data as! [BackendlessUser]
self.resultSearchController = UISearchController(searchResultsController: nil)
self.resultSearchController.searchResultsUpdater = self
self.resultSearchController.dimsBackgroundDuringPresentation = false
self.resultSearchController.searchBar.sizeToFit()
self.tableView.tableHeaderView = self.resultSearchController.searchBar
self.tableView.reloadData()
}) { (fault : Fault!) -> Void in
print("Error, couldnt retrieve users: \(fault)")
}
}
}
Your resultSearchController is nil before it is used. It's set in a closure that almost certainly sets it after it's needed when setting up the view. To fix it, just move this initialization code to something earlier like viewDidLoad():
self.resultSearchController = UISearchController(searchResultsController: nil)
self.resultSearchController.searchResultsUpdater = self
self.resultSearchController.dimsBackgroundDuringPresentation = false
self.resultSearchController.searchBar.sizeToFit()
self.tableView.tableHeaderView = self.resultSearchController.searchBar
I have just changed from a UITableViewController to a UITableView, and everything is working fine, with the exception of the search bar, which when tapping on a key on the keyboard will crash the app with the error:
Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'unable to dequeue a cell with identifier rideCell - must register a nib or a class for the identifier or connect a prototype cell in a storyboard'
I haven't changed anything in terms of the code. Someone suggested changing:
let cell = tableView.dequeueReusableCellWithIdentifier("rideCell", forIndexPath: indexPath) as! RideCell
to:
let cell = tableView.dequeueReusableCellWithIdentifier("rideCell") as! RideCell
but that didn't help at all.
Any suggestions?
EDIT:
Here is my code as requested:
class InitalViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
#IBOutlet var tableView: UITableView!
#IBOutlet weak var searchBar: UISearchBar!
var rideName = ""
var parkPassed: Park!
var searchResults = NSArray()
var loadingIndicator = UIActivityIndicatorView()
var backgroundLabel = LabelWithInsets()
var refreshSpinner = UIRefreshControl()
func handleRefresh(refreshControl: UIRefreshControl) {
DataManager.sharedInstance.loadRides(parkPassed.name!.stringByReplacingOccurrencesOfString(" ", withString: ""))
refreshControl.endRefreshing()
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
backgroundLabel.textAlignment = NSTextAlignment.Center
backgroundLabel.textColor = UIColorFromRGB(0x424242)
backgroundLabel.numberOfLines = 0
refreshSpinner.addTarget(self, action: "handleRefresh:", forControlEvents: UIControlEvents.ValueChanged)
tableView.addSubview(refreshSpinner)
//refreshControl = refreshSpinner
self.tableView.tableHeaderView = searchBar
self.tableView.contentOffset = CGPointMake(0, CGRectGetHeight(searchBar.frame))
self.navigationController?.navigationBar.barTintColor = UIColorFromRGB(0x0096FF)
NSNotificationCenter.defaultCenter().addObserver(self, selector: "updateTableView", name: "onRidesLoadedNotification", object: nil)
NSNotificationCenter.defaultCenter().addObserver(self, selector: "displayError", name: "onRidesLoadFailedNotification", object: nil)
}
override func viewWillAppear(animated: Bool) {
if DataManager.sharedInstance.rideArray.count == 0 {
tableView.separatorStyle = UITableViewCellSeparatorStyle.None
loadingIndicator.frame = CGRectMake((view.bounds.width / 2) - 25, (view.bounds.height / 2) - 50, 50, 50)
loadingIndicator.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.Gray
view.addSubview(loadingIndicator)
loadingIndicator.startAnimating()
backgroundLabel.text = "Loading rides..."
backgroundLabel.frame = CGRectMake(0, (view.bounds.height / 2) - 80, view.bounds.width, 30)
view.addSubview(backgroundLabel)
}
DataManager.sharedInstance.loadRides(parkPassed.name!.stringByReplacingOccurrencesOfString(" ", withString: ""))
UIApplication.sharedApplication().setStatusBarStyle(UIStatusBarStyle.LightContent, animated: false)
if NSUserDefaults.standardUserDefaults().arrayForKey("favourites") != nil {
let tempFavourites: NSArray = NSUserDefaults.standardUserDefaults().arrayForKey("favourites")!
favouritesArray = tempFavourites.mutableCopy() as! NSMutableArray
}
}
#IBAction func dismiss(sender: AnyObject) {
self.dismissViewControllerAnimated(true, completion: nil)
}
func updateTableView() {
tableView.reloadData()
tableView.separatorStyle = UITableViewCellSeparatorStyle.SingleLine
loadingIndicator.removeFromSuperview()
backgroundLabel.removeFromSuperview()
}
func displayError() {
loadingIndicator.removeFromSuperview()
backgroundLabel.removeFromSuperview()
backgroundLabel.text = "Failed to load rides. Please check your internet connection."
backgroundLabel.frame = CGRectMake(0, (view.bounds.height / 2) - 80, view.bounds.width, 60)
view.addSubview(backgroundLabel)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
override func viewDidAppear(animated: Bool) {
println(DataManager.sharedInstance.rideArray.count)
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("rideCell", forIndexPath: indexPath) as! RideCell
var ride: Ride
if tableView == self.searchDisplayController?.searchResultsTableView {
ride = DataManager.sharedInstance.getRideByName(searchResults[indexPath.row].name)!
} else {
ride = DataManager.sharedInstance.rideAtLocation(indexPath.row)!
}
cell.rideNameLabel.text = ride.name
var dateSinceUpdate = NSDate().timeIntervalSinceDate(ride.updated!)
var secondsSinceUpdate = Int(dateSinceUpdate)
var timeSinceUpdate = printSecondsConvert(secondsSinceUpdate)
cell.updatedLabel.text = timeSinceUpdate
if ride.waitTime == "Closed" {
cell.waitTimeLabel.text = ride.waitTime!
cell.timeBackgroundView.backgroundColor = getColorFromNumber(80)
cell.waitTimeLabel.font = UIFont(name: "Avenir", size: 13)
} else {
cell.waitTimeLabel.text = "\(ride.waitTime!)m"
cell.timeBackgroundView.backgroundColor = getColorFromNumber(ride.waitTime!.toInt()!)
cell.waitTimeLabel.font = UIFont(name: "Avenir", size: 17)
}
AsyncImageLoader.sharedLoader().cancelLoadingURL(cell.rideImageView.imageURL)
cell.rideImageView.image = UIImage(named: "Unloaded")
cell.rideImageView.imageURL = NSURL(string: ride.rideImageSmall!)
return cell
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if tableView == self.searchDisplayController?.searchResultsTableView {
return searchResults.count
} else {
return DataManager.sharedInstance.rideArray.count
}
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
let currentCell = tableView.cellForRowAtIndexPath(indexPath) as! RideCell!
rideName = currentCell.rideNameLabel.text!
performSegueWithIdentifier("showDetail", sender: self)
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if (segue.identifier == "showDetail") {
var viewController = segue.destinationViewController as! DetailViewController
viewController.currentRide = DataManager.sharedInstance.getRideByName(rideName)
viewController.parkPassed = parkPassed
}
}
func filterContentForSearchText(searchText: NSString) {
let resultPredicate = NSPredicate(format: "name contains[cd] %#", searchText) //Use either contains or beginswith
searchResults = (DataManager.sharedInstance.rideArray as NSArray).filteredArrayUsingPredicate(resultPredicate)
}
func searchDisplayController(controller: UISearchDisplayController!, shouldReloadTableForSearchString searchString: String!) -> Bool {
self.filterContentForSearchText(searchString)
return true
}
func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
return 71
}
func tableView(tableView: UITableView, editActionsForRowAtIndexPath indexPath: NSIndexPath) -> [AnyObject]? {
var cell = tableView.cellForRowAtIndexPath(indexPath) as! RideCell
let favourite = UITableViewRowAction(style: .Normal, title: " ") { action, index in
if favouritesArray.containsObject(cell.rideNameLabel.text!) {
favouritesArray.removeObject(cell.rideNameLabel.text!)
} else {
favouritesArray.addObject(cell.rideNameLabel.text!)
}
NSUserDefaults.standardUserDefaults().setObject(favouritesArray, forKey: "favourites")
tableView.setEditing(false, animated: true)
}
if favouritesArray.containsObject(cell.rideNameLabel.text!) {
favourite.backgroundColor = UIColor(patternImage: UIImage(named: "Unfavourite")!)
} else {
favourite.backgroundColor = UIColor(patternImage: UIImage(named: "Favourite")!)
}
return [favourite]
}
func tableView(tableView: UITableView, canEditRowAtIndexPath indexPath: NSIndexPath) -> Bool {
return true
}
func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {
}
}
Call next code in viewDidLoad method of view controller that contains your table view:
If you created RideCell in xib:
tableView.registerNib(UINib(nibName: "RideCell", bundle: nil),
forCellReuseIdentifier: "rideCell")
If you created RideCell in code:
tableView.registerClass(RideCell.self, forCellReuseIdentifier: "rideCell")
In your viewDidLoad you have to register the custom cell to your UITableView using this function:
func registerNib(_ nib: UINib,forCellReuseIdentifier identifier: String)