I have two scopes/tabs on my TableViewController, "All" & "Top 10". I only want my "Top 10" tab to display only 10 cells/rows instead of displaying everything. Do look at my images for better references.
P.S: My UITableView is used to display real-time results of over 30 booths for my event using firebase database. Also, case 0 is "All", case 1 is "Top 10".
TableViewController
Declare a variable in your view controller pointing to which segment is selected
var selectedTab = 0 In selectedScopeButtonIndexDidChange, assign value to above variable based on selection change:
func searchBar(_ searchBar: UISearchBar, selectedScopeButtonIndexDidChange selectedScope: Int) { switch selectedScope { case 0: selectedTab = 0 currentpostDataArray.removeAll() postData2.removeAll() for data in tableDataArray { currentpostDataArray.append(data.boothName) let value = String(describing: data.boothRating) postData2.append(value) } self.tableView.reloadData() case 1: selectedTab = 1 currentpostDataArray.removeAll() postData2.removeAll() let sortedTableData = tableDataArray.sorted(by: { $0.boothRating > $1.b oothRating }) for data in sortedTableData { currentpostDataArray.append(data.boothName) let value = String(describing: data.boothRating) postData2.append(value) } self.tableView.reloadData() default: break } tableView.reloadData() } In numberOfRowsInSection, check for selected segment and set row count:
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { if selectedTab = 0 { return currentpostDataArray.count } else { if currentpostDataArray.count >= 10 { return 10 } else { return currentpostDataArray.count } } } After sorting your tableDataArray, you should create an array with the first 10 elements from tableDataArray
You need to implement your logic as you change the index of your segmentControl.Set a tag variable as the index of segment changes and reload your table view once again. In your codes you have returned all the cells in your table view whatever the Segmentindex becomes.
You can try this and if you feel confused feel free to comment below:
import Foundation import UIKit class SegmentViewController : UIViewController,UITableViewDelegate,UITableViewDataSource { @IBOutlet weak var uiSegmentControl: UISegmentedControl! @IBOutlet weak var tableView: UITableView! var tag : Int = 1 override func viewDidLoad() { super.viewDidLoad() self.tableView.delegate = self self.tableView.dataSource = self } func numberOfSections(in tableView: UITableView) -> Int { return 1 } func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { if tag == 1 { //return total count return 100 } else if tag == 2 { return 10 } return 0 } func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { let cell = self.tableView.dequeueReusableCell(withIdentifier: "Cell") as! UITableViewCell cell.textLabel?.text = "CEll" return cell } @IBAction func didchange(_ sender: Any) { if uiSegmentControl.selectedSegmentIndex == 1 { print("Segment 1 is selected") self.tag = 2 self.tableView.reloadData() } else { print("Segment 2 is selected") self.tag = 1 self.tableView.reloadData() } } } You need to customize when data appending in loadDara2 function.
func loadDara2() { let sortedTableData = tableDataArray.sorted(by: { $0.boothRating > $1.boothRating }) for data in sortedTableData { currentpostDataArray.append(data.boothName) let value = String(describing: data.boothRating) if (postData2.count != 10){ postData2.append(value) }else { break } } } This will help.
Create a outlet of segment control and connect it.
@IBOutlet weak var segment: UISegmentedControl! Now replace numberOfRowsInSection method with below code.
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { return segment.selectedSegmentIndex == 0 ? currentpostDataArray.count : min(currentpostDataArray.count, 10) }