insertRowAtIndexes watchKit Swift - ios

Question

I have a struct
struct Question {
var title: [String]
var additionalInfo: String?
var answers: [String]
}
and a variable to which i add the data
var questions = [
Question(title: ["What is the color of?", "additional color information"], additionalInfo: nil, answers: [
"Blue",
"Gray"
])
]
This data loads up in a tableView on AppleWatch. Two row types are separated - TitleRowType (for titles array) and AnswersRowType (for answers array).
When i insert values into struct's array - i want to the rows in the tableView be inserted with animation.
I know that there's a insertRowAtIndexes function, but i cannot wrap my head around it. The example provided in Apple's documentation doesn't work for me. That's what i came up with:
let indexSet = NSIndexSet(index: Int) // Int is passed via the function
tableView.insertRowsAtIndexes(indexSet, withRowType: "TitleRowType")
but when i run it - the table doesn't update.
Looking forward to your advices.

Answer 1

You have to do 3 steps:
Add the new data to your array
Insert a row into the table
Populate the row with the new data
Here is a simple example:
class InterfaceController: WKInterfaceController {
#IBOutlet var table: WKInterfaceTable!
var items = ["row1", "row2", "row3"]
override func awakeWithContext(context: AnyObject?) {
super.awakeWithContext(context)
loadTable()
}
func loadTable() {
table.setNumberOfRows(items.count, withRowType: "tableRow")
var rowIndex = 0
for item in items {
if let row = table.rowControllerAtIndex(rowIndex) as? TableRowController {
row.label.setText(item)
}
rowIndex++
}
}
#IBAction func insertRow() {
items.append("row4")
let newIndex = items.count
table.insertRowsAtIndexes(NSIndexSet(index: newIndex), withRowType: "tableRow")
if let row = table.rowControllerAtIndex(newIndex) as? TableRowController {
row.label.setText(items[newIndex])
}
}
}
TableRowController is a NSObject subclass that has one WKInterfaceLabel outlet to display the number of the row.
I used a button to trigger insertRow()