Swift DropDown using Cocoapods error, won't work - ios

Question

i am new to swift and now i'm trying to create a dropdown table on storyboard using cocoapods. i have followed all the tutorial from the cocoapods & i guess there is something wrong with my code here.
Please give me an enlightened here why it won't work where i have declared the dropdown.
Thankyou for helping, appreciate it guys.
import iOSDropDown
class ViewController: UIViewController {
#IBOutlet weak var DropDownMenu: DropDown!
let dropDown = DropDown()
let view = UIView()
dropDown.anchorView = view
dropDown.optionArray = ["option 1", "option 2", "option 3"]

Answer 1

override func viewDidLoad() {
super.viewDidLoad()
let dropDown = DropDown()
let view = UIView()
dropDown.anchorView = view // UIView or UIButton
// For set direction .top, .bottom or .any(for automatic)
dropDown.direction = .any
dropDown.optionArray = ["data 1", "data 2", "data 3"]
// for custom cell you can set xib
dropDown.cellNib = UINib(nibName: "MyCell", bundle: nil)
// select item from dropdown
dropDown.selectionAction = { [unowned self] (index: Int, item: String) in
print("Selected item: \(item) at index: \(index)")
}
// if you want to set custom width then you can set.
dropDownLeft.width = 200
dropDown.show() // For Display Dropdown
dropDown.hide() // For hide Dropdown
}
for more detail and features you can refer https://github.com/AssistoLab/DropDown

Answer 2

import iOSDropDown
class ViewController: UIViewController,UITextFieldDelegate {
#IBOutlet weak var dropDown: DropDown!
override func viewDidLoad() {
super.viewDidLoad()
// The list of array to display. Can be changed dynamically
dropDown.optionArray = ["Option 1", "Option 2", "Option 3"]
//Its Id Values and its optional
dropDown.optionIds = [1,23,54,22]
// The the Closure returns Selected Index and String
dropDown.didSelect{(selectedText , index ,id) in
print("Selected String: \(selectedText) \n index: \(index)")
self.dropDown.hideList()
self.dropDown.text = selectedText
}
}
}
func textFieldDidBeginEditing(_ textField: UITextField) {
dropDown.showList()
}
}
you can refer this link https://cocoapods.org/pods/iOSDropDown

Answer 3

Step #1 : Add Pod and install
pod 'DropDown'
Step #2: Adding a drop-down in UIButton Tap
import UIKit
import DropDown
class ViewController: UIViewController {
let dropDown = DropDown()
override func viewDidLoad() {
super.viewDidLoad()
}
#IBAction func tapChooseItems(_ sender: UIButton) {
dropDown.dataSource = ["option 1", "option 2", "option 3"]
dropDown.anchorView = sender
dropDown.bottomOffset = CGPoint(x: 0, y: sender.frame.size.height)
dropDown.show()
dropDown.selectionAction = { [weak self] (index: Int, item: String) in
guard let _ = self else { return }
sender.setTitle(item, for: .normal)
}
}
}
Step #3: Adding a drop-down inside UITableView
import UIKit
import DropDown
class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
#IBOutlet weak var tableView: UITableView!
let dropDown = DropDown()
override func viewDidLoad() {
super.viewDidLoad()
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 10
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
cell.textLabel?.text = "Result: \(indexPath.row+1): "
return cell
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
if let cell = tableView.cellForRow(at: indexPath) {
dropDown.dataSource = ["option 1", "option 2", "option 3"]
dropDown.anchorView = cell
dropDown.bottomOffset = CGPoint(x: 0, y: cell.frame.size.height)
dropDown.backgroundColor = .gray
dropDown.show()
dropDown.selectionAction = { [weak self] (index: Int, item: String) in
guard let _ = self else { return }
cell.textLabel?.text = "Result: \(indexPath.row+1): \(item)"
}
}
}
}

Answer 4

Write the initialization code in viewDidLoad:
override func viewDidLoad() {
super.viewDidLoad()
let dropDown = DropDown()
let view = UIView()
dropDown.anchorView = view
dropDown.optionArray = ["option 1", "option 2", "option 3"]
}