Passing objects between view controllers

Question

So I am trying to pass some data from the current indexPath.row between two view controllers. Both of the view controllers has this:

    var imageFile = [PFFile]()
    var imageText = [String]()
    var username = [String]()
    var createdAt = [NSDate]()
    var objID = [String]()
    var thumbEmoji = [NSArray]()
    var loveEmoji = [NSArray]()
    var laughEmoji = [NSArray]()
    var handsEmoji = [NSArray]()
    var pooEmoji = [NSArray]()
    var comments = [NSArray]()
    var tagString = ""

How can I pass this in the override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) and get the current indexPath.row?

score 1 · Answer 1 · answered Mar 08 '16 at 14:09

1

This will give you the indexPath and the destination controller so you can set it's data. sender is also the UITableViewCell instance. This is for default implementation, where each cell triggers the ShowDetail segue.

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    if segue.identifier == "showDetail" {
        if let indexPath = self.tableView.indexPathForSelectedRow, let controller = segue.destinationViewController as? [your_destination_controller_type] {
            //Do you thing here
        }
    }
}

answered Mar 08 '16 at 14:09

konrad.bajtyngier

1,786
12
13

Am i using collectionView, not tableView.. – Sibling Thor Mar 08 '16 at 23:29
then you can use the cell, which is available in the `sender` parameter and get the `indexPath` through `UICollectionView`'s `indexPathForCell` method – konrad.bajtyngier Mar 08 '16 at 23:37
How exactly do you mean? – Sibling Thor Mar 09 '16 at 22:31

score 0 · Answer 2 · answered Mar 08 '16 at 14:01

Just pass sender as indexPath, you have to convert it back at prepareForSegue method

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
      [self performSegueWithIdentifier:@"identifire" sender:indexPath];
}

And in prepareForSegue method goes like :

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    if ([[segue identifier] isEqualToString:@"identifire"]) {
        NSIndexPath *ip = (NSIndexPath *)sender;
        YourTargetView *gcVC = (YourTargetView *)[segue destinationViewController];
        gcVC.passdata = [YourArray objectAtIndex:ip.row];
    }
}

HTH!!

score 0 · Answer 3 · answered Mar 08 '16 at 14:01

0

let indexPath : NSIndexPath = self.tableView.indexPathForSelectedRow!

answered Mar 08 '16 at 14:01

Mandeep Kumar

776
4
18

score 0 · Answer 4 · answered Mar 08 '16 at 14:04

I suggest moving your data model outside of your view controllers. That way, you don't have to pass anything. When a controller wants to change data, it tells the data model to update it. When a controller wants to display data, it asks the data model to provide it.

One piece of data model information then becomes "which is the current item".

Passing objects between view controllers

4 Answers4