I have very interesting problem:
I have two view controllers: FirstViewController and SecondViewController.
There is table view in FirstViewController.
There is a button to order rows in table.
There is segue between view controllers.
//MARK: Sorting function:
func changeSorting(buttonTag: Int) {
let button = self.view.viewWithTag(buttonTag) as? UIButton
let buttonName = (button?.currentTitle)! as String
//Apply Sorting to table:
arrayOfBanks.sortInPlace {
item1, item2 in
let val1 = item1["sellRate"] as! Double
let val2 = item2["sellRate"] as! Double
if buttonName == "0-9⬇︎" {
return val1 > val2
} else {
return val2 > val1
}
}
self.tableView.reloadData()
}
//MARK: Navigation
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "showCalculator" {
let viewController = segue.destinationViewController as! SecondViewController
let indexPath = tableView.indexPathForSelectedRow?.row
print(indexPath!)
viewController.bn = self.bankDict[indexPath!]["bankName"]! as! String
viewController.cn = self.bankDict[indexPath!]["currencyName"]! as! String
viewController.br = String(self.bankDict[indexPath!]["sellRate"]!)
viewController.sr = String(self.bankDict[indexPath!]["buyRate"]!)
}
Imagine that we have three rows in table with different bank names: Bank1, Bank2, Bank3. Sorting functions works well - it updates my table. Lets say after sorting we have new sequence: Bank3, Bank2, Bank1.
So after all - the problem is when I use segue to export values to secondViewController. It works just fine if I don't use sorting. But If I do, it transfers values as it would be before sorting.
EG without sorting if I press top row it would export bank1.
but. after sorting we have Bank3 on the top row, but it still transfers Bank1 to secondViewController.
Can anybody explain what I am missing? Thanks.
It looks like in changeSorting
you update an array called arrayOfBanks
. I assume this array is your data source. But in prepareForSegue
you use the index path of the selected row to access a dictionary called bankDict
. This dictionary was not touched by the sorting method, so it's ordering would be the same as before.
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