Expand only the cell that has been tapped

问题

I have some code in my app that expands a cell when it is tapped. The problem is that I haven't figured out how to only expand the cell that has been tapped. At the moment my code just expands all of the cells.

Here is my code:

override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
    selectedRowIndex = indexPath
    tableView.beginUpdates()
    tableView.endUpdates()
}

override func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
    if indexPath.row == selectedRowIndex.row {
        if cellTapped == false {
            cellTapped = true
            return 141
        } else {
            cellTapped = false
            return 70
        }
    }
    return 70
}

What do I need to do to only expand the cell that has been tapped?

回答1:

The following worked for me. The cells are 70 high and expand when tapped :

class ViewController: UITableViewController {
    var cellTapped:Bool = true
    var currentRow = 0;

Then I slightly modified the following two methods:

 override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
    var selectedRowIndex = indexPath
    currentRow = selectedRowIndex.row

    tableView.beginUpdates()
    tableView.endUpdates()
}

override func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
    if indexPath.row == currentRow {
        if cellTapped == false {
            cellTapped = true
            return 141
        } else {
            cellTapped = false
            return 70
        }
    }
    return 70
}

来源：https://stackoverflow.com/questions/26318209/expand-only-the-cell-that-has-been-tapped

标签

ios

uitableview

swift