Swift中使用M13CheckBox Pod获取选中行的方法咨询

Hey there! I’ve dealt with this exact issue using M13CheckBox before—since it doesn’t come with built-in delegate methods, we need a workaround to track which row’s checkbox was tapped. Here are two reliable approaches:

Approach 1: Use Closure Callbacks in Custom Cell #

This is my go-to method because it keeps your code clean and decoupled.

First, create a custom UITableViewCell subclass linked to your storyboard prototype:

import UIKit
import M13Checkbox

class CheckBoxTableViewCell: UITableViewCell {
    @IBOutlet weak var checkBox: M13Checkbox!
    
    // Add a closure to pass tap events and index path back to your view controller
    var checkboxTapHandler: ((Bool, IndexPath) -> Void)?
    var currentIndexPath: IndexPath?
    
    @IBAction func onCheckBoxTapped(_ sender: M13Checkbox) {
        guard let indexPath = currentIndexPath else { return }
        let isChecked = sender.checkState == .checked
        checkboxTapHandler?(isChecked, indexPath)
    }
}

Then, in your view controller’s tableView(_:cellForRowAt:) method, set up the closure and index path:

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "CheckBoxCell", for: indexPath) as! CheckBoxTableViewCell
    
    // Pass the current index path to the cell
    cell.currentIndexPath = indexPath
    
    // Configure the checkbox's initial state from your data source
    let item = yourDataSource[indexPath.row]
    cell.checkBox.checkState = item.isChecked ? .checked : .unchecked
    
    // Set up the closure to handle tap events
    cell.checkboxTapHandler = { [weak self] isChecked, indexPath in
        // Update your data source with the new state
        self?.yourDataSource[indexPath.row].isChecked = isChecked
        // Do anything else you need (e.g., update UI, trigger actions)
        print("Row \(indexPath.row) was \(isChecked ? "checked" : "unchecked")")
    }
    
    return cell
}

Approach 2: Traverse the View Hierarchy to Find the Cell #

If you prefer not to use closures, you can find the parent cell directly from the tapped checkbox:

In your view controller, link the checkbox’s action to this method:

@IBAction func checkBoxTapped(_ sender: M13Checkbox) {
    // Traverse up the view hierarchy to find the parent table view cell
    var currentView = sender.superview
    while let view = currentView, !(view is UITableViewCell) {
        currentView = view.superview
    }
    
    guard let cell = currentView as? UITableViewCell,
          let indexPath = tableView.indexPath(for: cell) else { return }
    
    let isChecked = sender.checkState == .checked
    // Update your data source and handle the selection
    yourDataSource[indexPath.row].isChecked = isChecked
    print("Selected row: \(indexPath.row), state: \(isChecked)")
}

Notes: #

• Always make sure to update your data source when the checkbox state changes—this ensures your table view reflects the correct state if cells are reused.
• Approach 1 is more scalable and easier to maintain, especially if you have complex cell logic.

内容的提问来源于stack exchange，提问作者Tarsha de Souza