How do I create two different sections on table? - swift

Question

I am trying to separate these data into two different sections :
–one section with movies of runtime more than 120 mins, another for the rest.
The problem is I am pulling data from the same array. How can I apply conditional statement/logic and insert into each section depending on the value? I am able to pull data from the different arrays and insert into the different sections however. Please guide me. Thank you
import UIKit
class ViewController: UIViewController,
UITableViewDelegate, UITableViewDataSource{
func tableView(_ tableView: UITableView, numberOfRowsInSection section:
Int) -> Int {
return movieList.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell : MovieCell = tableView.dequeueReusableCell(withIdentifier: "MovieCell", for: indexPath) as! MovieCell
let p = movieList[indexPath.row]
cell.nameLabel.text = p.movieName
cell.runTimeLabel.text = "\(p.runtime) mins"
cell.movieImageView.image = UIImage(named: p.imageName)
return cell
}
var movieList : [Movie] = []
#IBOutlet weak var tableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
movieList.append(Movie(movieName:"Oklahoma Crude",
movieDesc:"",
runtime:115,
imageName:"movie_oklahoma"))
movieList.append(Movie(movieName:"Bootleggers",
movieDesc:"",
runtime:140,
imageName:"movie_bootleggers"))
movieList.append(Movie(movieName:"Superdad",
movieDesc:"",
runtime:112,
imageName:"movie_superdad"))
// Do any additional setup after loading the view, typically from a nib.
}
func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCell.EditingStyle, forRowAt indexPath: IndexPath) {
if editingStyle == .delete{
movieList.remove(at: indexPath.row)
tableView.deleteRows(at: [indexPath], with: .automatic)
}
}
#IBAction func editButton(_ sender: Any) {
if !self.tableView.isEditing
{
(sender as AnyObject).setTitle("Done", for: .normal)
tableView.setEditing(true, animated: true)
}
else
{
(sender as AnyObject).setTitle("Edit", for: .normal)
tableView.setEditing(false, animated: true)
} }
func tableView(_ tableView: UITableView, moveRowAt sourceIndexPath: IndexPath, to destinationIndexPath: IndexPath) {
let m = movieList[sourceIndexPath.row]
movieList.remove(at:sourceIndexPath.row)
movieList.insert(m, at:destinationIndexPath.row)
}
func numberOfSections(in tableView: UITableView) -> Int {
return 2
}
let headerTitles = ["More than 120 minutes", "Others"]
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
if section < headerTitles.count {
return headerTitles[section]
}
return nil
}
}

Answer 1

Suppose with 120 will be section = 0
func tableView(_ tableView: UITableView, numberOfRowsInSection section:
Int) -> Int {
let arr120 = movieList.filter { $0.runtime >= 120 }
let arrLess120 = movieList.filter { $0.runtime < 120 }
return section == 0 ? arr120.count : arrLess120.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if indexPath.section == 0 {
let arr120 = movieList.filter { $0.runtime >= 120 }
///..
}
else {
let arrLess120 = movieList.filter { $0.runtime < 120 }
////....
}
Howver this not the perfest solution , you can organize your data source to
struct AllMovies {
let title:String // ex. above 120
let arr:[Movie]
}

Answer 2

It is better to have 2 arrays - one containing the movies shorter than 120mins and one containing the movies longer than 120mins. You should create those two arrays from the movieList array:
var lessThan120: [Movie]!
var moreThan120: [Movie]!
override func viewDidLoad() {
super.viewDidLoad()
movieList.append(Movie(movieName:"Oklahoma Crude",
movieDesc:"",
runtime:115,
imageName:"movie_oklahoma"))
movieList.append(Movie(movieName:"Bootleggers",
movieDesc:"",
runtime:140,
imageName:"movie_bootleggers"))
movieList.append(Movie(movieName:"Superdad",
movieDesc:"",
runtime:112,
imageName:"movie_superdad"))
let count = movieList.partition(by: {$0.runtime > 120})
lessThan120 = Array(movieList[0..<count])
moreThan120 = Array(movieList[count...])
}
Then implementing the data source methods would be very simple:
func tableView(_ tableView: UITableView, numberOfRowsInSection section:
Int) -> Int {
if section == 0 {
return moreThan120.count
} else if section == 1 {
return lessThan120.count
}
return 0
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell : MovieCell = tableView.dequeueReusableCell(withIdentifier: "MovieCell", for: indexPath) as! MovieCell
let p = indexPath.section == 0 ? moreThan120[indexPath.row] : lessThan120[indexPath.row]
cell.nameLabel.text = p.movieName
cell.runTimeLabel.text = "\(p.runtime) mins"
cell.movieImageView.image = UIImage(named: p.imageName)
return cell
}
func numberOfSections(in tableView: UITableView) -> Int {
return 2
}

Answer 3

var movieList = [String]()
var movieListGreaterThen120 = [String]()
var movieListSmallerThen120 = [String]()
for item in movieList {
if item.runtime > 120 {
movieListGreaterThen120.append(item)
}else {
movieListSmallerThen120.append(item)
}
}
//MARK: - tableView DataSource
func tableView(_ tableView: UITableView, numberOfRowsInSection section:
Int) -> Int {
if section == 0 {
return movieListGreaterThen120.count
}else {
return movieListSmallerThen120.count
}
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell : MovieCell = tableView.dequeueReusableCell(withIdentifier: "MovieCell", for: indexPath) as! MovieCell
if indexPath.section == 0 {
//Load your movieListGreaterThen120 Data
}else {
//Load your movieListSmallerThen120 Data
}
return cell
}
func numberOfSections(in tableView: UITableView) -> Int {
return 2
}

Answer 4

"movieList" array can be filtered out depending on the runtime value.
if indexPath.section == 0 {
movieList.filter { $0.runtime >= 120 }
}
else {
movieList.filter { $0.runtime < 120 }
}