3D Touch Peek and Pop from UITableViewCell how to hand over data to other UIViewController?

Question

my app stores different attributes in Core Data objects. They are all shown in a UITableView, if you click a cell, a DetailView is shown. the usual stuff like in the Master-

Answer 1

Get the destination View controller from the storyboard using its storyboard ID and pass the objects that you are doing in prepareForSegue method.

Below is the code that I use to pass the data. Its in Swift, it should be similar in objective C. Let me know if you want Objective C version.

func previewingContext(previewingContext: UIViewControllerPreviewing,viewControllerForLocation location: CGPoint) -> UIViewController? method:

    // Obtain the index path and the cell that was pressed.
    guard let indexPath = tableView.indexPathForRowAtPoint(location),
              cell = tableView.cellForRowAtIndexPath(indexPath) else { return nil }

    // Create a destination view controller and set its properties.
    guard let destinationViewController = storyboard?.instantiateViewControllerWithIdentifier("DestinationViewController") as? DestinationViewController else { return nil }
    let object = fetchedResultController.objectAtIndexPath(indexPath)
    destinationViewController.detailItem = object

    /*
        Set the height of the preview by setting the preferred content size of the destination view controller. Height: 0.0 to get default height
    */
    destinationViewController.preferredContentSize = CGSize(width: 0.0, height: 0.0)

    previewingContext.sourceRect = cell.frame

    return destinationViewController
}