Show Only First Cell in Table View - ios

Question

I employ a table view and table view cell on top of a map view on a view controller, and I only want to display the first cell. I have tried setting numberOfRowsInSection to 1, and that crashes my app.
The data filling the cell and determining the number of rows in sections comes from Core Data. I have successfully shown only the data that I want, it's just repeated a bunch rather than showing just one cell.
I want this, like I have in my separate Table View Controller:
Instead, I get this:
My cellForRowAt:
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
// Configure cell
let cell = tableView.dequeueReusableCell(withIdentifier: "MapTableViewCell") as! MapTableViewCell
cell.thumbnailImageView.layer.cornerRadius = 10
cell.horizontalStackView.addBackground(color: UIColor.white)
// Get data
var cellLocation: Location
for location in locations {
if location.latitude == annotation.coordinate.latitude && location.longitude == annotation.coordinate.longitude {
cellLocation = location
YelpClient.sharedInstance().loadImage(cellLocation.imageUrl, completionHandler: { (image) in
performUIUpdatesOnMain {
cell.thumbnailImageView.layer.cornerRadius = 10
cell.thumbnailImageView.clipsToBounds = true
cell.thumbnailImageView.image = image
cell.nameLabel.text = cellLocation.name
cell.priceLabel.text = cellLocation.price
cell.displayRating(location: cellLocation)
}
YelpClient.sharedInstance().getOpeningHoursFromID(id: cellLocation.id, completionHandlerForOpeningHours: { (isOpenNow, error) in
if let error = error {
print("There was an error: \(String(describing: error))")
}
if let isOpenNow = isOpenNow {
performUIUpdatesOnMain {
if isOpenNow {
cell.openLabel.text = "Open"
cell.openLabel.textColor = UIColor.black
} else {
cell.openLabel.text = "Closed"
cell.openLabel.textColor = UIColor(red: 195/255, green: 89/255, blue: 75/255, alpha: 1.0)
cell.openLabel.font = UIFont.systemFont(ofSize: 17.0, weight: .semibold)
}
}
}
})
})
}
}
return cell
}
numberOfRowsInSection:
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return locations.count
}
Let me know what I'm missing.

Answer 1

Create a class variable that receives just the data you want even if it is just one item:
var location1Item = [location]()
locations1Item.append(locations[0]) //Or the item you want to show
Now use the location1Item to populate the tableView
numberOfRowsInSection:
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return location1Item.count
}
cellForRowAt:
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
// Configure cell
let cell = tableView.dequeueReusableCell(withIdentifier: "MapTableViewCell") as! MapTableViewCell
cell.thumbnailImageView.layer.cornerRadius = 10
cell.horizontalStackView.addBackground(color: UIColor.white)
// Get data
var cellLocation: Location
for location in location1Item {
if location.latitude == annotation.coordinate.latitude && location.longitude == annotation.coordinate.longitude {
cellLocation = location
YelpClient.sharedInstance().loadImage(cellLocation.imageUrl, completionHandler: { (image) in
performUIUpdatesOnMain {
cell.thumbnailImageView.layer.cornerRadius = 10
cell.thumbnailImageView.clipsToBounds = true
cell.thumbnailImageView.image = image
cell.nameLabel.text = cellLocation.name
cell.priceLabel.text = cellLocation.price
cell.displayRating(location: cellLocation)
}
YelpClient.sharedInstance().getOpeningHoursFromID(id: cellLocation.id, completionHandlerForOpeningHours: { (isOpenNow, error) in
if let error = error {
print("There was an error: \(String(describing: error))")
}
if let isOpenNow = isOpenNow {
performUIUpdatesOnMain {
if isOpenNow {
cell.openLabel.text = "Open"
cell.openLabel.textColor = UIColor.black
} else {
cell.openLabel.text = "Closed"
cell.openLabel.textColor = UIColor(red: 195/255, green: 89/255, blue: 75/255, alpha: 1.0)
cell.openLabel.font = UIFont.systemFont(ofSize: 17.0, weight: .semibold)
}
}
}
})
})
}
}
return cell
}