Getting a indexPath.row with a matching value - swift

So, I have two Json requests from the same API with the difference, that one is from today and the other one from yesterday. I have them displayed in "MyCell" in my TableView and the result is this.
This is the code :
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "MyCell", for: indexPath) as! CustomTableViewCell
let today = today[indexPath.row]
let yesterday = yesterday[indexPath.row]
let nameOfThe place = today.local
let salesToday = today.sales
let nameOfThePlaceYesterday = yesterday.local
let salesYesterday = yesterday.sales
}
So far, so good. Thats whats I wanted. The problem start when some places havent open yesterday( for example A and B). I get this:
Whats happening is, since there isnt the same "numberOfRowsInSection" for both days, it just populates cell in order but mismatching places. Question:
How do I get "indexPath.row" with a matching value of the other indexPath.row. In this case it would be a name of the place.
Thank you

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "MyCell", for: indexPath) as! CustomTableViewCell
let today = today[indexPath.row]
let nameOfThe place = today.local
let salesToday = today.sales
if let yesterday = yesterday[safe: indexPath.row] {
let nameOfThePlaceYesterday = yesterday.local
let salesYesterday = yesterday.sales
}
}

Related

Crash: Attempted to dequeue multiple cells for the same index path, which is not allowed

I have tableview datasource func to build a cell from a factory method function.
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
return OWTableViewOrganizer.instance.configureCell(at: indexPath)!
}
The factory method is here:
func configureCell(at indexPath: IndexPath) -> UITableViewCell? {
var cell = UITableViewCell()
switch indexPath.section {
case thisWorkoutSections.barbel.sectionNumber():
cell = barebellCell(indexPath: indexPath)
break
case thisWorkoutSections.lastWorkout.sectionNumber():
cell = lastWorkoutCell(indexPath: indexPath)
break
case thisWorkoutSections.personalRecord.sectionNumber():
cell = personalRecordCell(indexPath: indexPath)
break
case thisWorkoutSections.notes.sectionNumber():
break
default:
break
}
return cell
}
I have this code to build the cell:
func lastWorkoutCell(indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: WorkoutSetTableViewCell.cellIdentifier(), for: indexPath) as! WorkoutSetTableViewCell
if OWTableViewOrganizer.instance.lastWorkoutExerciseSets.count > 0 {
if indexPath.row < OWTableViewOrganizer.instance.lastWorkoutExerciseSets.count {
let logExerciseSet = OWTableViewOrganizer.instance.lastWorkoutExerciseSets[indexPath.row]
let setNumber = indexPath.row + 1
if let weight = logExerciseSet.weight?.doubleValue, let reps = logExerciseSet.reps?.intValue {
cell.setupCellWithData(setNumber: setNumber, weight: weight, reps: reps)
}
} else {
cell.setupCellWithData(setNumber: -1, weight: 0, reps: 0)
}
} else {
cell.setupCellWithData(setNumber: -1, weight: 0, reps: 0)
}
return cell
}
But time to time this line crashes for me:
let cell = tableView.dequeueReusableCell(withIdentifier: WorkoutSetTableViewCell.cellIdentifier(), for: indexPath) as! WorkoutSetTableViewCell
With error:
Attempted to dequeue multiple cells for the same index path, which is not allowed. If you really need to dequeue more cells than the table view is requesting, use the -dequeueReusableCellWithIdentifier: method (without an index path)
I know code style and design is not ideal here, please skip this if you have comments.
I don't know where to look, I tried simply remove indexPath, but it looks does not help or bring even more issues:
let cell = tableView.dequeueReusableCell(withIdentifier: WorkoutSetTableViewCell.cellIdentifier()) as! WorkoutSetTableViewCell
I have one controller which presents another one at the top of it (like in Apple music) and I can swipe down to show bottom controller and swipe up to bring back top controller. I noticed in log that I have some presentation alert, not sure if this something I need to deal with to resolve the issue above but JFY info.
It seems like there are two table view trigger
tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath)
and you only dequeue cell from 1 table view at
let cell = tableView.dequeueReusableCell(withIdentifier: WorkoutSetTableViewCell.cellIdentifier(), for: indexPath) as! WorkoutSetTableViewCell
You should try to pass tableView from
tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath)
to
lastWorkoutCell(indexPath: IndexPath)
(which will become lastWorkoutCell(indexPath: IndexPath, tableView: UITableView)) and dequeue cell from tableView

Displaying two reusable cells in tableview - Swift 3

I have two custom reusable table view cells in my table view. The first cell, I would like it to be present at all times. The second cell and beyond, are returning a count that is being passed from mysql database.
// return the amount of cell numbers
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return posts.count
}
// cell config
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if indexPath.row < 1 {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as! InfoCell
//set the data here
return cell
} else {
let Postcell = tableView.dequeueReusableCell(withIdentifier: "PostCell", for: indexPath) as! PostCell
let post = posts[indexPath.row]
let image = images[indexPath.row]
let username = post["user_username"] as? String
let text = post["post_text"] as? String
// assigning shortcuts to ui obj
Postcell.usernameLbl.text = username
Postcell.textLbl.text = text
Postcell.pictureImg.image = image
return Postcell
}
} // end of function
My first cell is there and so are the post.count, but for some reason the posts.count is missing one post and I believe this is because of the first cell. Can anybody help me with this? thanks in advance.
You need to adjust the value returned from numberOfRowsInSection to account for the extra row. And you would need to adjust the index used to access values from your posts array to deal with the extra row.
But a much better solution is to use two sections. The first section should be your extra row and the second section would be your posts.
func numberOfSections(in tableView: UITableView) -> Int {
return 2
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if section == 0 {
return 1
} else {
return posts.count
}
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if indexPath.section == 0 {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as! InfoCell
//set the data here
return cell
} else {
let Postcell = tableView.dequeueReusableCell(withIdentifier: "PostCell", for: indexPath) as! PostCell
let post = posts[indexPath.row]
let image = images[indexPath.row]
let username = post["user_username"] as? String
let text = post["post_text"] as? String
// assigning shortcuts to ui obj
Postcell.usernameLbl.text = username
Postcell.textLbl.text = text
Postcell.pictureImg.image = image
return Postcell
}
}

How to get data from different table cell

I have the following code which will trigger when the the didSelectRowAt is called. Which is basically when you click on any row.
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
if(indexPath.section == 0){
let indexPath = tableView.indexPathForSelectedRow
let currentCell = tableView.cellForRow(at: indexPath!) as! addNameTableViewCell
print(currentCell.addNameTextField.text)
}
}
My problem is that I have four sections and in section zero is an button that when pressed I want to be able to return the data that is in section three.
let indexPath = tableView.indexPathForSelectedRow
So basically the problem is how to make this instead of the indexPath of the selected row, I want to be able to point it at a different indexPath.
EDIT:
let indexArray = tableView.indexPathsForVisibleRows
let currentCell = tableView.cellForRow(at: (indexArray?[1])!) as! addNameTableViewCell
I was able to solve it with the above but still be nice if a better way

Editor placeholder in source file error with simple UITableView

I am totally new to Swift and also have no background experience in development. I am trying to a simply table view in Swift but keep getting the error 'Editor placeholder in source file.
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: <#T##IndexPath#>) as! CustomCell
cell.photo.image = images[indexPath.row]
cell.Name.text = names[indexPath.row]
cell.Job.text = jobs[indexPath.row]
return cell
}
This is where your problem is:
for: <#T##IndexPath#>)
just tab to that variable and type in:
indexPath

Use of undeclared type 'ContactsTableViewCell'

I am working on to fetch phone contacts. But I got an error like use of undeclared type ContactsTableViewCell. I tried UITableViewCell but it didn't work. What should I do ?
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
{
let cell = tableView.dequeueReusableCell(withIdentifier: "TableCell", for: indexPath) as! ContactsTableViewCell
let data = dataArray![indexPath.row] as! Data;
cell.lblName.text = data.name
cell.imgContact.image = data.image
return cell
}
First you should make a class named ContactsTableViewCell which inherit UITableViewCell or if you already created it be sure you added this class to your targets.