UITableViewCell custom properties (in Swift)
-
20-12-2019 - |
Frage
I'd like to be able to programatically attribute custom properties to a UITableViewCell (or any other object for that matter)
I'm using a delegate method in Swift w/ Realm.io DB (but I'm guessing it should be something similar in objective-c). Is using commented out line below == correct way of doing this?
override func tableView(tableView: UITableView?, cellForRowAtIndexPath indexPath: NSIndexPath?) -> UITableViewCell? {
let cell = tableView!.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as Cell
let object = array[UInt(indexPath!.row)] as Language
cell.textLabel.text = object.title
cell.position = object.position // does not produce any warnings
return cell
}
Attributing title works just fine (because it is a label), but how do I attribute other (non-declared) properties to a cell so I can recover them later, when traversing the tableView?
for var row = 0; row < tableView.numberOfRowsInSection(0); row++ {
var cellPath = NSIndexPath(forRow: row, inSection: 0)
var cell:Cell = tableView.cellForRowAtIndexPath(cellPath) as Cell
println(cell) // This prints out my cells, which contains a .text property, but no custom properties
}
Println produces the following result, but position property is not in it:
<_TtC8Verbum_24Cell: 0x7f9fb58bd3d0; baseClass = UITableViewCell; frame = (0 0; 320 44); text = 'Italiano'; autoresize = W; layer = <CALayer: 0x7f9fb585bb70>>
<_TtC8Verbum_24Cell: 0x7f9fb58bb670; baseClass = UITableViewCell; frame = (0 44; 320 44); text = 'Francais'; autoresize = W; layer = <CALayer: 0x7f9fb58a44f0>>
UPDATE: I'm using a custom class for table cells:
class Cell: UITableViewCell {
var position:Int?
init(style: UITableViewCellStyle, reuseIdentifier: String!) {
super.init(style: .Subtitle, reuseIdentifier: reuseIdentifier)
}
}
Lösung
print
uses the CustomStringConvertible
protocol's description
method to print out your object. Since you haven't provided a custom description, you're just seeing the regular UITableViewCell's description. You could simply print(cell.position)
or:
var description: String { return "Cell with position \(position)" }