I'm new to Swift and i've been working on an app for a couple of day now. Now I'm trying to fill up my tableview, but for some reason it stays empty. I've checked if my data comes through (by doing a print of my drinks in the updateUi function), and it seems so be there but my view just doesn't get filled. Anyone has a clue what could be wrong?
Thanks a lot!
import UIKit
class SearchResultsTableViewController: UITableViewController {
let cocktailController = CocktailController()
var drinks = [Drink]()
var drink: String!
override func viewDidLoad() {
super.viewDidLoad()
title = drink.capitalized
cocktailController.fetchDrinks(forDrink: drink)
{ (drinks) in
if let drinks = drinks {
self.updateUI(with: drinks)
}
}
}
func updateUI(with drinks: [Drink]) {
DispatchQueue.main.async {
self.drinks = drinks
self.tableView.reloadData()
}
}
override func numberOfSections(in tableView: UITableView) -> Int {
// #warning Incomplete implementation, return the number of sections
return drinks.count
}
override func tableView(_ tableView: UITableView, cellForRowAt
indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier:
"DrinkCellIdentifier", for: indexPath)
configure(cell, forItemAt: indexPath)
return cell
}
func configure(_ cell: UITableViewCell, forItemAt indexPath:
IndexPath) {
let drinkItem = drinks[indexPath.row]
cell.textLabel?.text = drinkItem.strDrink
}
}
Instead of number of sections, you should use number of rows in section to return the tableview row count.
func tableView(_ tableView: UITableView, numberOfRowsInSection
section: Int) -> Int {
return drinks.count
}
Related
I am trying to create UITableview with cells, identical to the iPhone settings screenshot.
It is part of my homework so i have to do it all in UITableview.
this is what I did with my code, but everything is red and full with errors. I tried to do it following the samples from lessons but it kinda looks all wrong.
Please, help me understand how this thing works and what is wrong.
import UIKit
struct Lines{
var image: [UIImage] = []
var title: [String] = []
}
class Titles {
static func titles() -> [Lines]{
return [
Lines(image: UIImage[ systemName: "airplane" ,"wifi.square.fill", "bitcoinsign.circle.fill", "iphone.homebutton.radiowaves.left.and.right", "personalhotpot" ], title: ["Авиарежим" , "Wi-fi", "Bluetooth", "Сотовая связь", "Режим модема"]),
Lines(image: UIImage[ systemName: "bell.badge.fill" ,"speaker.wave.3.fill", "moon.fill", "iphone.homebutton.radiowaves.left.and.right", "clock.fill" ], title: ["Уведомления", "Звуки,тактильные сигналы", "Не беспокоить", "Экранное время"]),
Lines(image: UIImage[ systemName: "gear" ,"switch.2", "display" ] , title: ["Общие", " Control Centre", "Экран и яркость"])
]
}
}
class SecondTableViewController: UITableViewController {
var lines = Titles.titles()
override func viewDidLoad() {
super.viewDidLoad()
}
}
extension SecondTableViewController: UITableViewDataSource, UITableViewDelegate{
func numberOfSections(in tableView: UITableView) -> Int {
return titles.count
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return titles[section].title.count
}
override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let cell = tableView.dequeueReusableCell(withIdentifier: "SectionCell") as! TableViewCell
let title = titles[section]
cell.image = Lines.image
cell.titleLabel.text = Lines.title
return cell
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "SecondTableViewCell") as! TableViewCell
let name = titles[indexPath.section].title[indexPath.row]
cell.image = Lines.image
cell.titleLabel.text = Lines.title
return cell
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
tableView.deselectRow(at: indexPath, animated: true)
}
}
Thank you!
You use the wrong property name :
func numberOfSections(in tableView: UITableView) -> Int {
// titles is not defined
return titles.count
}
You must use :
func numberOfSections(in tableView: UITableView) -> Int {
return lines.count
}
Same for the other methods. In cellForRow :
let name = titles[indexPath.section].title[indexPath.row]
Let image = titles[indexPath.section].image[indexPath.row]
Should be replaced by :
let name = lines[indexPath.section].title[indexPath.row]
For viewFirHeader you use a cell which is usually not what is done. You have no title for each lines array. You may have to think again what you want to use. The way you organise your data may also be rethink as you have 2 different array for images and titles.
I'm building an iOS app with a collection view inside the table view. I'm having three rows each row having a collection view inside it. I am planning to have three sections each section for each row. For example row, one should be in a separate section with a header and similarly for rows 2 and 3.
Whenever I create three sections I'm getting all the three rows in all three sections. I want to have a separate section with a header for each row.
import UIKit
class StoreVC: UIViewController,UITableViewDelegate,UITableViewDataSource {
#IBOutlet weak var CourseTableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
CourseTableView.tableFooterView = UIView()
CourseTableView.delegate = self
CourseTableView.dataSource = self
}
func numberOfSections(in tableView: UITableView) -> Int {
return 3
}
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
if section == 0
{
return "Courses"
}
else if section == 1
{
return "Tests"
}
return "Bundles"
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 1
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if indexPath.row == 0
{
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! CourseRow
return cell
}
else if indexPath.row == 1
{
let cell = tableView.dequeueReusableCell(withIdentifier: "testcell", for: indexPath) as! TestRow
return cell
}
else if indexPath.row == 2
{
let cell = tableView.dequeueReusableCell(withIdentifier: "bundlecell", for: indexPath) as! BundleRow
return cell
}
return UITableViewCell()
}
}
Try this code on your Xcode-playground and customize as you need.
import UIKit
import PlaygroundSupport
class ViewController: UITableViewController {
override func viewDidLoad() {
super.viewDidLoad()
}
override func numberOfSections(in tableView: UITableView) -> Int {
3
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
1
}
override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let headerView = UILabel()
headerView.text = "Header: \(section)"
return headerView
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = UITableViewCell()
cell.textLabel?.text = "Cell: \(indexPath)"
return cell
}
}
PlaygroundPage.current.liveView = ViewController()
I'm developing a IOS app and I want to show the array Strings from all document fields in table view.
this is my struct for the array.
struct Test{
var car: Array<String>
var dictionary: [String: Any] {
return [
"car":car
]
}
}
extension Test{
init?(dictionary: [String : Any]) {
guard let car = dictionary["car"] as? Array<String>
else { return nil }
self.init(car:car)
}
}
This is my code for fetching the data.
func loadData(){
let db = Firestore.firestore()
db.collection("test").getDocuments(){
querySnapshot, error in
if let error = error {
print("\(error.localizedDescription)")
}else{
self.testArray = querySnapshot!.documents.compactMap({Test(dictionary: $0.data())})
print(self.testArray)
DispatchQueue.main.async {
self.tableView.reloadData()
}
}
}
}
And this my tableView code.
override func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return testArray.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
let item = testArray[indexPath.row].car[indexPath.row]
cell.textLabel!.text = ("\(item)")
return cell
Everything seems fine but when run the app, the tableview shows the [0] from the 1st document in the first line, the [1] from the 2nd document in the second line etc. I want to show the whole array from first document then the whole array from 2nd document etc.
You need multiple sections
override func numberOfSections(in tableView: UITableView) -> Int {
return testArray.count
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return testArray[section].car.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
cell.textLabel!.text = testArray[indexPath.section].car[indexPath.row]
return cell
}
I am loading data into a UITableView. The first load happens properly for the first 10 cells in
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {}
the indexPath.row increments properly and loads the data into the proper cells from the data source. I then implemented a load more when the bottom of the table is reached. Now func tableView is called but it is stuck at indexPath.row = 9. I have implemented a checker in
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
And it appears that the proper number of rows has been added.
Edit: I having issue with the my second uitableview (there are two in this scene) The checker is a print statement that is called and returns the proper uitableView and this happens before the tableView gets stuck at the same value.
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if tableView == self.table {
return users2.count
}
else {
print("married barry", tableFeedCount)
return tableFeedCount
}
}
Try following:
Declare boolean
let boolNotMoreData : Bool = true
Append new data to your data source
let arrResponse: [Any]? = (responseObject["news"] as? [Any])
if arrResponse?.count == 0{
boolNotMoreData = false;
}
for dictResponse in arrResponse as! [[String: Any]] {
self.arrDataSource.append(NewsClass(responseDict: dictResponse))
}
self.tblViewNews?.reloadData()
Now fetch new data
private func tableView(_ tableView: UITableView, willDisplayCell cell: UITableViewCell, forRowAt indexPath: IndexPath) {
if indexPath.row == arrNews.count - 1 {
if boolNotMoreData {
currentPage += 1
getYourData()
}
}
}
This worked Successfully
#IBOutlet weak var Submitted: UITableView!
#IBOutlet weak var ViewAssigenment: UITableView!
var Arrayone:[String] = []
var ArrayTwo:[String] = []
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
var count:Int?
if tableView == self.ViewAssigenment
{
count = Arrayone.count
}
else if tableView == self.Submitted
{
count = ArrayTwo.count
}
return count!
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
{
if tableView == self.ViewAssigenment
{
let cell = tableView.dequeueReusableCell(withIdentifier: "ViewCell") as!
ViewAssigenmentTableViewCell
let obj =Arrayone[indexPath.row]
cell.lblTitle.text = obj.AssTitle
return cell
}
else
{
let cell1 = tableView.dequeueReusableCell(withIdentifier: "Submittcell") as! SubmittedAssigenmentTableViewCell
let obj2 = ArrayTwo[indexPath.row]
cell1.lbltitle.text = obj2.AssTitle
return cell1
}
}
Im really new to Swift, the question is how can I represent values from array in label.
I want a TableView with cells dynamically represent values from array into the labels which will be created in tableView rows.
import UIKit
import Foundation
class TableViewMarketItemsViewCell: UITableViewController {
var fruits = ["Avocado", "Apricot", "Pomegranate", "Quince"]
var PriceArray = ["1000 тг.","4000 тг.","3000 тг.","2000 тг."]
var categoryArray = ["Green category","Maroon category","Red category","Yellow category"]
// MARK: - UITableViewDataSource
override func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return fruits.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "LabelCell", for: indexPath) as! TableViewCell
let fruitName = fruits[indexPath.row]
cell.productTitle.text = fruitName
cell.productImage.image = UIImage(named: fruitName)
return cell
}
}
Thnx in advance
import UIKit
import Foundation
class TableViewMarketItemsViewCell: UITableViewController {
var fruits = ["Avocado", "Apricot", "Pomegranate", "Quince"]
var PriceArray = ["1000 тг.","4000 тг.","3000 тг.","2000 тг."]
var categoryArray = ["Green category","Maroon category","Red category","Yellow category"]
// MARK: - UITableViewDataSource
override func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return fruits.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "LabelCell", for: indexPath) as! TableViewCell
let fruitName = fruits[indexPath.row]
cell.productTitle.text = fruitName
cell.productImage.image = UIImage(named: fruitName)
cell.productPrice.text = PriceArray[indexPath.row]
cell.productsubTitle.text = categoryArray[indexPath.row]
return cell
}
}
This helped me.
result in picture below:
img
For inserting data into UITableViewcell use below code:
import UIKit
class ViewController: UIViewController,UITableViewDataSource {
#IBOutlet var tableView: UITableView!
var dataArray:NSArray!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
tableView.dataSource = self
dataArray = NSArray(objects: "a","b","c")
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return dataArray.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
cell.textLabel?.text = dataArray.object(at: indexPath.row) as? String
return cell
}
}
tableView is outlet of UItableView.
You can populate an UITableView from an array like below:
(assuming that your array has a list of string values):
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return array.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
// Creating the tableView cell
let tableViewCell = tableView.dequeueReusableCell(withIdentifier: "tableViewCell", for: indexPath) as! UITableViewCell
//Assigning values
tableViewCell.lblName?.text = array.object(at: indexPath.row) as? String
return tableViewCell
}
In this way you can show the value from your array to the label in your tableView.