This is my code to navigate from one viewController to another viewControler but i can't navigate. data is rest api nsobject data that stored category from rest api as name, entertainment is a category . when i tap on category goto another viewController
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath)
{
print("hello welcome on this news page")
// dismiss(animated: true, completion: nil)
if data[indexPath.row].name == "Entertainment"
{
let storyboard = UIStoryboard(name: "Main", bundle: Bundle.main)
let destination = storyboard.instantiateViewController(withIdentifier: "WhiteViewController") as! FourthViewController
navigationController?.pushViewController(destination, animated: true)
dismiss(animated: true, completion: nil)
print("Welcome on Business..!")
}
}
If you are using storyboard use this -
if let navigationObject = UIStoryboard(name: "storyboard_name", bundle: nil).instantiateViewController(withIdentifier: "viewcontroller_storyboardId") as? viewController_name {
navigationController?.pushViewController(navigationObject, animated: true)
}
There could be come following reasons
Check if name contains entertainment Or Entertainment as string
value? means case sensitivity(as a test do following and check)
data[indexPath.row].name.lowerCased() == "Entertainment".lowerCased()
Missing navigationController (navigation controller not embedded) if missing embed
navigationController to your root controller.
try removing dismiss(animated: true, completion: nil)
Simply Use This,
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath)
{
if data[indexPath.row].name == "Entertainment" {
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let whiteVC = storyboard.instantiateViewController(withIdentifier: "WhiteViewController") as! WhiteViewController
self.navigationController?.pushViewController(whiteVC, animated: true)
}
}
Related
I am trying to make it when the users clicks on Button in a table view cell it takes them to a new view controller related to the current cell.
Try the below code,
Do this in cellForRowAt indexPath,
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell_Identifier", for: indexPath) as! UITableViewCell
cell.myButton.isUserInteractionEnabled = true
cell.myButton.tag = indexPath.row
cell.myButton.addTarget(self, action: #selector(didTapMyButton(_:)), for: UIControlEvents.touchUpInside)
return cell
}
And here is the button action,
func didTapMyButton(_ sender : UIButton) {
let selectedIndex = sender.tag // You can get index here, so according to the index you can navigate to particular ViewController
let nextVC = self.storyboard?.instantiateViewController(withIdentifier: "UIViewController_identifier") as! UIViewController
self.present(nextVC, animated: true, completion: nil)
}
Hope it helps ..
I'm new to swift and I've been watching so many tutorials and looking at other peoples code to see how I can create a expandable cell in my table view controller. But, i've already created a firebase database in the same view controller. The problem is, is that I need the information from my database to be in the expandable view cell with the exception of one label. Does anybody know how i can do this? (It'll make a bit more sense when you take a look at the code below)
//
// Database.swift
// intern
//
// Created by Lani Daniels on 8/20/17.
// Copyright © 2017 Lani Daniels. All rights reserved.
//
import UIKit
import Firebase
import FirebaseDatabase
struct PostStruct {
let title: String
let message: String // How would I put this in the expandable cell?
let company: String // ...Also this in the expandable cell, but i assume it would be the same method as "let message"
}
class DatabaseViewController: UITableViewController {
var selectedCellIndexPath: NSIndexPath?
var posts: [PostStruct] = []
override func viewDidLoad() {
super.viewDidLoad()
//
let databaseRef = Database.database().reference()
databaseRef.child("Posts").queryOrderedByKey().observe(.childAdded, with: {
snapshot in
let snapshotValue = snapshot.value as? NSDictionary
let title = snapshotValue?["title"] as? String
let message = snapshotValue?["message"] as? String
let company = snapshotValue?["company"] as? String
self.posts.insert(PostStruct(title: title ?? "", message: message ?? "", company: company ?? ""), at: 0)
self.tableView.reloadData()
})
post()
}
func post(){
let title = "Title"
let message = "Message"
let company = "Company"
let post : [String : AnyObject] = ["title" : title as AnyObject, "message" : message as AnyObject, "company" : company as AnyObject]
let databaseRef = Database.database().reference()
databaseRef.child("Posts").childByAutoId().setValue(post)
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return posts.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
let label3 = cell.viewWithTag(3)as? UILabel; label3?.text=posts[indexPath.row].title
label3?.text=posts[indexPath.row].title
let textView2 = cell.viewWithTag(2) as? UITextView; textView2?.text=posts[indexPath.row].message
textView2?.text=posts[indexPath.row].message
let label4 = cell.viewWithTag(4)as? UILabel; label4?.text=posts[indexPath.row].company
label4?.text=posts[indexPath.row].company
return cell
}
#IBAction func appliedDataTapped(_ sender: Any) {
self.performSegue(withIdentifier: "segue", sender: self)
}
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
}
}
It's been awhile since I've made a fool of myself here, so here goes again as I'm still trying to learn and feel as though I'm chasing my tail on this project.
With that said, ultimately I would like to get Jerkoch's SwipeCellKit to work, but not necessary at this point as I just need to figure out how to add more options other than just the 'delete' cell action.
This is what I've got: My Project
This is what I'd like: Jerkoch's Project
I loose my data if I set the delegate property on tableView from
let cell = tableView.dequeueReusableCell(withIdentifier: "CommentCell", for: indexPath) as! CommentTableViewCell
to
let cell = tableView.dequeueReusableCell(withIdentifier: "CommentCell", for: indexPath) as! SwipeTableViewCell
Here is my CommentViewController Code:
import UIKit
import SwipeCellKit
class CommentViewController: UIViewController {
var postId: String!
var comments = [Comment]()
var users = [User]()
override func viewDidLoad() {
super.viewDidLoad()
tableView.tableFooterView = UIView(frame: CGRect.zero)
tableView.separatorInset = UIEdgeInsets.zero
tableView.dataSource = self
tableView.estimatedRowHeight = 100
tableView.rowHeight = UITableViewAutomaticDimension
loadComments()
}
func loadComments() {
Api.Post_Comment.REF_POST_COMMENTS.child(self.postId).observe(.childAdded, with: {
snapshot in
Api.Comment.observeComments(withPostId: snapshot.key, completion: {
comment in
self.fetchUser(uid: comment.uid!, completed: {
self.comments.append(comment)
self.tableView.reloadData()
})
})
})
}
func fetchUser(uid: String, completed: #escaping () -> Void ) {
Api.User.observeUser(withId: uid, completion: {
user in
self.users.append(user)
completed()
})
}
}
extension CommentViewController: UITableViewDataSource {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return comments.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "CommentCell", for: indexPath) as! CommentTableViewCell// Can't update this to SwipeTableViewCell - Will loose data
cell.selectedBackgroundView = createSelectedBackgroundView()
let comment = comments[indexPath.row]
let user = users[indexPath.row]
cell.comment = comment
cell.user = user
cell.delegate = self
return cell
}
}
extension CommentViewController: SwipeTableViewCellDelegate{
func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
}
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
}
// customize the action appearance
deleteAction.image = UIImage(named: "delete")
let flagAction = SwipeAction(style: .destructive, title: "Flag") { action, indexPath in
// handle action
}
deleteAction.image = UIImage(named: "flag")
let blockAction = SwipeAction(style: .destructive, title: "Block") { action, indexPath in
// handle action
}
deleteAction.image = UIImage(named: "block")
return [deleteAction, flagAction, blockAction]
}
}
I've even tried something like the following:
func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
// THIS GIVES THE DEFAULT 'DELETE' ACTION
print("Commit editingStyle")
}
func tableView(tableView: UITableView, editActionsForRowAtIndexPath indexPath: NSIndexPath) -> [UITableViewRowAction]? {
print("editActionsForRowAtIndexPath")
let blockAction = UITableViewRowAction(style: UITableViewRowActionStyle.normal, title: "Block", handler: { (action:UITableViewRowAction, IndexPath:IndexPath) in
//self.isEditing = false
print("Block action Pressed")
})
let flagAction = UITableViewRowAction(style: UITableViewRowActionStyle.normal, title: "Flag", handler: { (action:UITableViewRowAction, IndexPath:IndexPath) in
print("Flag action Pressed")
})
let deleteAction = UITableViewRowAction(style: UITableViewRowActionStyle.destructive, title: "Delete", handler: { (action:UITableViewRowAction, IndexPath:IndexPath) in
print("Delete action Pressed")
})
return [blockAction, flagAction, deleteAction]
}
No matter what I do, I can't get more than just the generic 'Delete' action to show on a swipe action.
I don't even think the following function is being called/referenced:
func tableView(tableView: UITableView, editActionsForRowAtIndexPath indexPath: NSIndexPath) -> [UITableViewRowAction]? {
What am I doing wrong, or what do I need to CUD to get 3 swipe actions; Delete, Flag and Block, to make Apple happy for my next submission.
Thank you all in advance!
This question is outdated but i'll write the answer which i think would have done the trick :)
You should be using UITableViewController not UIViewController for your view. SwipeCellKit only works with TableViewControllers.
I'm trying to pass data from tableView1 and tableView2 one at a time to MainVC via segues from textfields, the problem is MainVC.textField is not keeping the value of the previous tableView data, looks like is creating a new MainVC all the time, here is the code from the tableView which is the same for the second tableView.
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let indexPath = self.itemTableView.indexPathForSelectedRow
let currentCell = tableView.cellForRow(at: indexPath!) as! ItemCell
itemToPass = currentCell.itemName?.text
performSegue(withIdentifier: "toEnterItem", sender: self)
}
and
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "toEnterItem" {
let enterItemVC = segue.destination as! MainVC
MainVC.passedItem = itemToPass
}
}
Any help will be appreciated. Thanks
Problem solved, I used protocols to temporarily persist the data in textfields after segue.
protocol sendName {
func sendToLastVC{name: String)
}
I'm pretty new to swift but I've managed to follow along for the most part. However, there's an issue with my code that the code itself can't even identity apparently(I'm not receiving any error signs). I'm trying to click on a row from the table view to make it go to the following page but I don't think the code is recognizing the didselectrow method. Maybe one of you more experienced persons can help me out.
Here's the code:
import UIKit
import Foundation
class OnePercentersViewController: UIViewController, UITableViewDataSource
{
var copiedExecutiveArray : [String] = NSArray() as! [String]
var identities : [String] = NSArray() as! [String]
override func viewDidLoad()
{
super.viewDidLoad()
let copyExecutiveNames : ExecutiveArray = ExecutiveArray()
copiedExecutiveArray = copyExecutiveNames.executiveNames
identities = copyExecutiveNames.executiveNames
}
//how many sections in table
func numberOfSections(in tableView: UITableView) -> Int
{
return 1
}
//returns int (how many rows)
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
return copiedExecutiveArray.count
}
//contents of each cell
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
{
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell")//UITableViewCell()
let personName = copiedExecutiveArray[indexPath.row]
cell?.textLabel?.text = personName
return cell!
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath)
{
let execName = identities[indexPath.row]
let viewController = storyboard?.instantiateViewController(withIdentifier: execName)
self.navigationController?.pushViewController(viewController!, animated: true)
print("button clicked")
tableView.deselectRow(at: indexPath as IndexPath, animated: true)
}
}
I haven't checked other parts of your code, but to make tableView(_:didSelectRowAt:) work, your ViewController needs to conform to UITableViewDelegate:
class OnePercentersViewController: UIViewController, UITableViewDataSource, UITableViewDelegate
Also you need to connect the delegate of the UITableView to your ViewController in your storyboard. Or you can do it in code, if you have an #IBOutlet to the UITableView. Anyway, not only dataSource, but also delegate.
And this is not a critical issue, but you can write the first two lines of the class as:
var copiedExecutiveArray : [String] = []
var identities : [String] = []
After spending a day and a half watching Youtube videos and reading comments to similar problems, tt took trial and error but I finally got it thanks to you guys!It finally clicked when I read that I had to connect the delegate to the ViewController through the storyboard, so thanks for that!
Here's the final code for those with similar issue:
import UIKit
import Foundation
class OnePercentersViewController: UIViewController,UITableViewDataSource, UITableViewDelegate
{
var copiedExecutiveArray : [String] = []
var identities : [String] = []
override func viewDidLoad()
{
super.viewDidLoad()
let copyExecutiveNames : ExecutiveArray = ExecutiveArray()
copiedExecutiveArray = copyExecutiveNames.executiveNames
identities = copyExecutiveNames.executiveNames
}
//how many sections in table
func numberOfSections(in tableView: UITableView) -> Int
{
return 1
}
//returns int (how many rows)
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
return copiedExecutiveArray.count
}
//contents of each cell
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
{
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
let personName = copiedExecutiveArray[indexPath.row]
cell.textLabel?.text = personName
return cell
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath)
{
let execName = identities[indexPath.row]
let viewController = storyboard?.instantiateViewController(withIdentifier: execName)
self.navigationController?.pushViewController(viewController!, animated: true)
tableView.deselectRow(at: indexPath as IndexPath, animated: true)
}
}