How to use TableView Delegate in your project

Here is the implementation of delegate method and the callback of the delegate :-

First make the class for the delegate :-

class EmployeeTableViewDelegate:NSObject, UITableViewDelegate {

private var items : [T]!
var delegateCell : (T) -> () = {_ in }

init(items: [T]!, delegateCell: @escaping (T) -> Void) {
    self.items = items
    self.delegateCell = delegateCell
}

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
    print("Calling DidSelect")
    let item = self.items[indexPath.row]
    self.delegateCell(item)
}

}

make variable on the viewcontroller Same like Datasource :- private var dataSource : EmployeeTableViewDataSource<EmployeeTableViewCell,EmployeeData>! private var delegate: EmployeeTableViewDelegate!

Use it same Like datasource and write down this code of bellow datasource code in func updateDataSource()

self.dataSource = EmployeeTableViewDataSource(cellIdentifier: "EmployeeTableViewCell", items: self.viewModel.empData.data, configureCell: { (cell, evm) in
    cell.employee = evm
                cell.employeeIdLabel.text = "\(evm.id)"
    cell.employeeNameLabel.text = evm.employeeName
})

self.delegate = EmployeeTableViewDelegate(items: self.viewModel.empData.data, delegateCell: { empData in
    print("DidSelect Data is:-", empData)
})

Setup tableview delegate same like datasource :-

DispatchQueue.main.async {
    self.employeeTableView.rowHeight = 70
    self.employeeTableView.delegate = self.delegate
    self.employeeTableView.dataSource = self.dataSource
    self.employeeTableView.reloadData()
}

That's it, Happy coding :)

AbMathur / MVVM_Swift

How to use TableView Delegate in your project #3