UITableView load more when scrolling to bottom like Facebook application

Question

I am developing an application that uses SQLite. I want to show a list of users (UITableView) using a paginating mechanism. Could any one please tell me how to load more dat

Answer 1

The best way to solve this problem is to add cell at the bottom of your table, and this cell will hold indicator.

In swift you need to add this:

1. Create new cell of type cellLoading this will hold the indicator. Look at the code below
2. Look at the num of rows and add 1 to it (This is for loading cell).
3. you need to check in the rawAtIndex if idexPath.row == yourArray.count then return Loading cell.

look at code below:

import UIKit

class LoadingCell: UITableViewCell {

@IBOutlet weak var indicator: UIActivityIndicatorView!


}

For table view : numOfRows:

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return  yourArray.count + 1
}

cellForRawAt indexPath:

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

    if indexPath.row == users.count  {
        // need to change
        let loading = Bundle.main.loadNibNamed("LoadingCell", owner: LoadingCell.self , options: nil)?.first as! LoadingCell
        return loading

    }

    let yourCell = tableView.dequeueReusableCell(withIdentifier: "cellCustomizing", for: indexPath) as! UITableViewCell

    return yourCell

}

If you notice that my loading cell is created from a nib file. This videos will explain what I did.