ViewCell height doesnt work Swift 4 - ios

I'm beginner at Xcode and I need some help with viewcell in table view.
This is the properties for my viewcell:
When i tried to run the simulator it become something like this:
my viewcontroller
import UIKit
import SwiftyJSON
import Kingfisher
class CakeViewController: UIViewController,UITableViewDelegate,UITableViewDataSource {
//MARK : Properties
var cakeArray = [Cake]()
#IBOutlet weak var testImage: UIImageView!
#IBOutlet weak var tableView: UITableView!
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return cakeArray.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cellIdentifier = "CakeTableViewCell"
// let cell = tableView.dequeueReusableCell(withIdentifier: "CakeCategoryTableViewCell"/*Identifier*/, for: indexPath)
guard let cell = tableView.dequeueReusableCell(withIdentifier: cellIdentifier, for: indexPath) as? CakeTableViewCell else {
fatalError("The dequeued cell is not an instance of cakeViewCell.")
}
//cell.textLabel?.text = cake_category[indexPath.row]
let cakeObj = cakeArray[indexPath.row]
cell.cakeLabel.text = cakeObj.product
return cell
}
override func viewDidLoad() {
super.viewDidLoad()
print("Load Initial Data")
loadInitialDataFromJson(category : "Reguler Cake")
// Do any additional setup after loading the view.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func loadInitialDataFromJson(category:String)
{
APIManager.sharedInstance.getCakeByCategory(category: category, onSuccess: {json in DispatchQueue.main.async {
let status = json["status"].stringValue
//let message = json["message"].stringValue
if status == "OK"
{
for (key, subJson) in json["list_produk"] {
//print(subJson["id_product"])
var arrayVariant = [Variant]()
for(key,subsJson) in subJson{
arrayVariant.append(Variant(size:subsJson["size"].stringValue,price:subsJson["price"].intValue)!)
}
self.cakeArray.append(Cake(id_product:subJson["id_product"].stringValue,product:subJson["product"].stringValue,description:subJson["description"].stringValue,imageURL:subJson["images"].stringValue,variant:arrayVariant)!)
}
self.tableView.rowHeight = UITableViewAutomaticDimension
self.tableView.estimatedRowHeight = 150
self.tableView.reloadData()
}else{
print("Not Ok")
}
}}, onFailure: {error in let alert = UIAlertController(title: "Error", message: error.localizedDescription, preferredStyle: .alert)
alert.addAction(UIAlertAction(title: "Dismiss", style: .default, handler: nil))
self.show(alert, sender: nil)
})
}
/*
// 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.
}
*/
}
and my tableviewcell
import UIKit
class CakeTableViewCell: UITableViewCell {
// MARK : Properties
#IBOutlet weak var cakeImage: UIImageView!
#IBOutlet weak var cakeLabel: UILabel!
#IBAction func addToCart(_ sender: UIButton) {
}
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
}
}
Any idea why this happening??
I've created some views with tableview and it has worked normally.

to adjust your cell hight call in your cakeViewController
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat
{
return 100.0;//Choose your custom row height
}

Related

How to append to an array on another view controller

I have an array in a tableView that shows that contents of that array, and I am able to append values to the array. the problem is that whenever I go to another page, it automatically empties, but I want the values to stay there. Here is my code for the first view controller:
// AddFoodViewController.swift
// grosseries
//
// Created by Amish Tyagi on 6/2/20.
// Copyright © 2020 grosseries. All rights reserved.
//
import UIKit
class AddFoodViewController: UIViewController {
#IBOutlet weak var foodTextField: UITextField!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
}
#IBAction func doneTapped(_ sender: Any) {
}
func transitionToNext() {
let homeViewController = storyboard?.instantiateViewController(identifier: "TableViewController") as? TableViewController
view.window?.rootViewController = homeViewController
view.window?.makeKeyAndVisible()
}
// 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?) {
if (segue.identifier == "toTableViewController") {
let homeViewController = segue.destination as? TableViewController
homeViewController?.food.append(foodTextField.text!)
view.window?.rootViewController = homeViewController
}
}
}
Here is the code for my second view controller:
// TableViewController.swift
// grosseries
//
// Created by Amish Tyagi on 5/29/20.
// Copyright © 2020 grosseries. All rights reserved.
//
import UIKit
class TableViewController: UIViewController{
#IBOutlet var tableView: UITableView!
var food : [String]! = []
override func viewDidLoad() {
super.viewDidLoad()
tableView.delegate = self
tableView.dataSource = self
// Do any additional setup after loading the view.
}
#IBAction func addItemTapped(_ sender: Any) {
transitionToNext()
}
func transitionToNext() {
let nextViewController = storyboard?.instantiateViewController(identifier: "AddFoodViewController") as? AddFoodViewController
view.window?.rootViewController = nextViewController
view.window?.makeKeyAndVisible()
}
}
extension TableViewController : UITableViewDelegate {
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
print("you tapped me :)")
}
}
extension TableViewController : UITableViewDataSource {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return food.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
cell.textLabel?.text = food[indexPath.row]
return cell
}
}
Here is a picture of my storyboard layout:
Any Help would be greatly appreciated!
In the storyboard, select your TableViewController storyboard and select Editor->Embed in->Navigation Controller:
Below your tableView (or anywhere else you'd like) add a button with a segue to show the AddFoodViewController.
Now, on your AddFoodViewController add a button to confirm the food you put on textField:
#IBAction func confirmAddedFood(_ sender: Any) {
guard let tableViewVC = navigationController?.viewControllers.first as? TableViewController else { return }
tableViewVC.food.append(foodTextField.text!)
navigationController?.popViewController(animated: true)
}
You don't need the food array on your AddFoodViewController anymore, you still need the one on TableViewController though.
Don't forget to reload the tableView when you go back to it after adding a food, in your TableViewController add:
override func viewWillAppear(_ animated: Bool) {
tableView.reloadData()
}
Your TableViewController:
class TableViewController: UIViewController{
#IBOutlet var tableView: UITableView!
var food: [String] = []
override func viewDidLoad() {
super.viewDidLoad()
// In the case when not using prototype cell.
tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")
tableView.dataSource = self
}
override func viewWillAppear(_ animated: Bool) {
tableView.reloadData()
}
}
extension TableViewController: UITableViewDataSource {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return food.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
cell.textLabel?.text = food[indexPath.row]
return cell
}
}
And FoodViewController:
class AddFoodViewController: UIViewController {
#IBOutlet weak var foodTextField: UITextField!
override func viewDidLoad() {
super.viewDidLoad()
}
#IBAction func confirmAddedFood(_ sender: Any) {
guard let tableViewVC = navigationController?.viewControllers.first as? TableViewController else { return }
tableViewVC.food.append(foodTextField.text!)
navigationController?.popViewController(animated: true)
}
}
It's not very cool to just give the already done code, but I think in this case is just a silly mistake, whether from you or me.

My custom cells are not showing up in my tableview

So I have been trying to get my custom cells to show up on this tableview, but I am not sure as to why they are not showing up
I have already checked other stack overflow questions and tried their fixes, to no avail. Please ignore the aws stuff as you can see I have the text hard coded so I can just get them to appear for now.
This is the code within the class holding the tableview
import Foundation
import AWSDynamoDB
import AWSCognitoIdentityProvider
import UIKit
// this will be the main feed class showing the user data
class UserDetailTableViewController : UITableViewController {
// attributes for the custome cell
#IBOutlet weak var testing: UITextField!
#IBOutlet var Table: UITableView!
var response: AWSCognitoIdentityUserGetDetailsResponse?
var user: AWSCognitoIdentityUser?
var pool: AWSCognitoIdentityUserPool?
var questiondata : Array<Phototext> = Array()
override func viewDidLoad() {
tableView.delegate = self
tableView.dataSource = self
super.viewDidLoad()
self.pool = AWSCognitoIdentityUserPool(forKey: AWSCognitoUserPoolsSignInProviderKey)
if (self.user == nil) {
self.user = self.pool?.currentUser()
}
// grabbing data from our aws table
updateData()
self.refresh()
}
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(animated)
self.navigationController?.setToolbarHidden(true, animated: true)
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
self.navigationController?.setToolbarHidden(false, animated: true)
}
#IBAction func Questions(_ sender: Any) {
performSegue(withIdentifier: "ask", sender: self)
}
// MARK: - IBActions
#IBAction func signOut(_ sender: AnyObject) {
self.user?.signOut()
self.title = nil
self.response = nil
self.refresh()
}
// reloads the prior view
func refresh() {
self.user?.getDetails().continueOnSuccessWith { (task) ->
AnyObject? in
DispatchQueue.main.async(execute: {
self.response = task.result
self.title = self.user?.username
// saving the user name from the main menu
username123 = self.user?.username! ?? "broken"
})
return nil
}
}
// function that calls to our aws dynamodb to grab data from the
// user
//and re update questions
// the array list
func updateData(){
let scanExpression = AWSDynamoDBScanExpression()
scanExpression.limit = 20
// testing to grabt the table data upon startup
let dynamoDBObjectMapper = AWSDynamoDBObjectMapper.default()
dynamoDBObjectMapper.scan(Phototext.self, expression:
scanExpression).continueWith(block: {
(task:AWSTask<AWSDynamoDBPaginatedOutput>!) -> Any? in
if let error = task.error as NSError? {
print("The request failed. Error: \(error)")
} else if let paginatedOutput = task.result {
// passes down an array of object
for Photo in paginatedOutput.items as! [Phototext] {
// loading in the arraylist of objects
// adding the objects to an arraylist
self.questiondata.append(Photo)
}
DispatchQueue.main.async {
//code for updating the UI
}
}
return ()
})
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// returning the number of rows
return 3
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath:
IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier:
"Questionpost", for: indexPath) as! QuestionCell
cell.QuestionText.text = "call it"
cell.Subject.text = "a day"
return cell
}
}
}
Here is the code for the QuestionCell class
import UIKit
class QuestionCell: UITableViewCell {
#IBOutlet weak var Subject: UILabel!
#IBOutlet weak var QuestionText: UITextView!
}
The cell class is called QuestionCell and the identifier I left on the cell in the storyboard is Questionpost
Here is a photo of my story board:
I have fixed it by declaring an extension with the proper types.
extension UserDetailTableViewController: UITableViewDataSource,UITableViewDelegate{
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// returning the number of rows
return 3
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Questionpost", for: indexPath) as! QuestionCell
cell.QuestionText.text = "call it"
cell.Subject.text = "a day"
return cell
}}
good explanation of what's going on, you need to conform to the UITableViewDataSource and UITableViewDelegate when you inbed a tableview.
Redundant conformance of TableView to protocol UITableViewDataSource with Xib Files

How do You Inherit a Custom TableViewController For An TableView in a ViewController

So I have a custom SwipeCellTableView class that I inherited from when using UITableViewControllers. Now I want to just use that class for an ib outlet table view controller in a regular View Controller. It is proving to be very difficult and seemingly not worth it anymore. Can this be done?
Here is the superclass which inherits from a TableViewController, I have tried to change it to inherit from a view controller but it just doesn't work out
class SwipeTableViewController: UITableViewController, SwipeTableViewCellDelegate {
var cell: UITableViewCell?
override func viewDidLoad() {
super.viewDidLoad()
tableView.rowHeight = 80.0
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as! SwipeTableViewCell
cell.delegate = self
return cell
}
func tableView(_ tableView: UITableView, editActionsForRowAt indexPath: IndexPath, for orientation: SwipeActionsOrientation) -> [SwipeAction]? {
guard orientation == .right else { return nil }
let deleteAction = SwipeAction(style: .destructive, title: "Delete") { action, indexPath in
// handle action by updating model with deletion
self.updateModel(at: indexPath)
}
deleteAction.image = UIImage(named: "delete-icon")
return [deleteAction]
}
func tableView(_ tableView: UITableView, editActionsOptionsForRowAt indexPath: IndexPath, for orientation: SwipeActionsOrientation) -> SwipeOptions {
var options = SwipeTableOptions()
options.expansionStyle = .destructive
//options.transitionStyle = .reveal
return options
}
func updateModel(at indexPath: IndexPath){
//update data model
print("Item deleted from super class")
}
Here is the View Controller I'm trying to access it from:
class GoalsViewController: UIViewController, SwipeTableViewController {
#IBOutlet weak var categoryTable: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
#IBAction func addCategoryPressed(_ sender: UIButton) {
performSegue(withIdentifier: "showgoalsSeg", sender: self)
}
For reference on how I was using it before when using an actual TableViewController:
class CategoryViewController: SwipeTableViewController {
var categories: Results<Category>? //optional so we can be safe
override func viewDidLoad() {
super.viewDidLoad()
loadCategory()
tableView.rowHeight = 80.0
tableView.separatorStyle = .none
}
//MARK: - Tableview Datasource Methods
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
//Only get the count of categories if it's nil, else 1
return categories?.count ?? 1
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
//fetching cell from super view
let cell = super.tableView(tableView, cellForRowAt: indexPath)
cell.textLabel?.text = categories?[indexPath.row].name ?? "No Categories Added Yet"
cell.backgroundColor = UIColor(hexString: categories?[indexPath.row].color ?? "000000")
return cell
}
//MARK: - Tableview Delegate Methods
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
performSegue(withIdentifier: "goToItems", sender: self)
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
let destinationVC = segue.destination as! ToDoListViewController
if let indexPath = tableView.indexPathForSelectedRow {
destinationVC.selectedCategory = categories?[indexPath.row]
}
}
//MARK: - Add New Categories
#IBAction func addButtonPressed(_ sender: Any) {
var textField = UITextField()
let alert = UIAlertController(title: "Add New Category", message: "", preferredStyle: .alert)
let action = UIAlertAction(title: "Add Category", style: .default) { (action) in
let newCategory = Category()
newCategory.name = textField.text!
newCategory.color = UIColor.randomFlat.hexValue()
self.save(category: newCategory)
}
alert.addAction(action)
alert.addTextField { (field) in
textField = field
textField.placeholder = "Add a new category"
}
present(alert, animated: true, completion: nil)
}
func save(category: Category){
let realm = try! Realm()
do {
try realm.write{
realm.add(category)
}
} catch {
print("error saving context")
}
tableView.reloadData()
}
override func updateModel(at indexPath: IndexPath) {
super.updateModel(at: indexPath)
let realm = try! Realm()
if let categoryForDeletion = self.categories?[indexPath.row]{
do{
try realm.write{
realm.delete(categoryForDeletion)
}
} catch {
print("error deleting cell")
}
//tableView.reloadData()
}
}
func loadCategory(){
let realm = try! Realm()
categories = realm.objects(Category.self)
tableView.reloadData()
}
Is this even worth persuing? Or doable?

Updating Label in Cell

I have a TableView which rows contain label and two buttons. What I wanna do is that when a user clicks the first button "Set Name", a pop up view comes up in which he can input text from keyboard. After hitting "Set", pop up view is dismissed and label inside a row containing the clicked button changes to the input text. I set the delegates but I cannot make label to change.
TableView:
import UIKit
class SetGame: UIViewController, UITableViewDelegate, UITableViewDataSource
{
var numOfPlayers = Int()
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
return numOfPlayers
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
{
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! TableViewCell
cell.Name.text = "Player \(indexPath.row + 1)"
cell.btn1.tag = indexPath.row
cell.btn2.tag = indexPath.row
return cell
}
override func viewDidLoad()
{
super.viewDidLoad()
self.tableView.separatorStyle = UITableViewCellSeparatorStyle.none
}
override func didReceiveMemoryWarning()
{
super.didReceiveMemoryWarning()
}
#IBAction func setName(sender: UIButton)
{
let thisVC = storyboard?.instantiateViewController(withIdentifier: "SetName") as! SetName
thisVC.delegate = self
present(thisVC, animated: true, completion: nil)
}
#IBAction func setFingerprint(_ sender: UIButton)
{
}
#IBAction func unwindToSetGame(_ segue: UIStoryboardSegue)
{
print("unwinded to SetGame")
}
#IBOutlet weak var tableView: UITableView!
}
extension SetGame: nameDelegate
{
func named(name: String)
{
let indexP = IndexPath(row: 0, section: 0)
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexP) as! TableViewCell
cell.Name.text = "bkjhvghcjhkv"
//wanted to see if it changes first cell. But doesn't work
}
}
TableViewCell Class:
import UIKit
class TableViewCell: UITableViewCell
{
override func awakeFromNib()
{
super.awakeFromNib()
}
override func setSelected(_ selected: Bool, animated: Bool)
{
super.setSelected(selected, animated: animated)
}
#IBOutlet weak var Name: UILabel!
#IBOutlet weak var btn1: UIButton!
#IBOutlet weak var btn2: UIButton!
}
Pop up View:
import UIKit
protocol nameDelegate
{
func named(name: String)
}
class SetName: UIViewController
{
var delegate: nameDelegate!
override func viewDidLoad()
{
super.viewDidLoad()
window.layer.borderWidth = 1
window.layer.borderColor = UIColor.white.cgColor
}
override func didReceiveMemoryWarning()
{
super.didReceiveMemoryWarning()
}
#IBAction func closePopUp(_ sender: Any)
{
if input.text != ""
{
delegate.named(name: input.text!)
}
dismiss(animated: true, completion: nil)
}
#IBOutlet weak var input: UITextField!
#IBOutlet weak var window: UIView!
}
Replace this
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexP) as! TableViewCell
with
let cell = tableView.cellForRow(at:indexP) as! TableViewCell

how to handle button click for each button in each row of UITableView

I have a UITableView (with a Custom class called CellModelAllNames for each row). Each Row has a Label and a button.
My question is: When btn_addRecording (i.e. the '+' button is clicked on any/each of the rows, how do I get the lbl_name.text, the label name shown, and show a pop up in the ViewController itself. I want to get additional information in the pop up and then save all the info (including the lbl_name to a database).
CellModelAllNames for each row layout:
import UIKit
class CellModelAllNames: UITableViewCell {
#IBOutlet weak var lbl_name: UILabel!
#IBOutlet weak var btn_addRecording: UIButton!
#IBAction func btnAction_addRecording(sender: AnyObject) {
println("clicked on button in UITableViewCell")
}
override func awakeFromNib() {
super.awakeFromNib()
}
override func setSelected(selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
}
func setCell(setBabyName: String) {
self.lbl_name.text = setBabyName
}
}
Here's the code of my ViewController:
import UIKit
class SecondViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
#IBOutlet weak var tbl_allNames: UITableView!
var arrayOfNames: [Name] = [Name]()
override func viewDidLoad() {
super.viewDidLoad()
self.tbl_allNames.delegate = self
self.tbl_allNames.dataSource = self
self.tbl_allNames.scrollEnabled = true
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell:CellModelAllNames = self.tbl_allNames.dequeueReusableCellWithIdentifier("CellModelAllNames") as! CellModelAllNames
let name = arrayOfNames[indexPath.row]
cell.setCell(name.name)
println("in tableView, cellforRowatIndex, returning new cells")
return cell
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return arrayOfNames.count
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
}
}
You can use standard UIKit methods to get the cell and its data:
func tappedButton(sender : UIButton) {
let point = sender.convertPoint(CGPointZero, toView: self.tableView)
let indexPath = self.tableView.indexPathForRowAtPoint(point)!
let name = arrayOfNames[indexPath.row]
// do something with name
}
You can add button action in your ViewController
1) In your function cellForRowAtIndexPath assign button's tag as index (ie. indexPath.row)
cell.btn_addRecording.tag = indexPath.row
2) Add target and action for your button :
cell.btn_addRecording.addTarget(self, action: "buttonPressed:", forControlEvents: .TouchUpInside)
3) Add action in ViewControler (ie. save info in database)
func buttonPressed(button: UIButton!)
{
// Add your code here
let name = arrayOfNames[button.tag]
}

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