not getting all images when passing images data to imageview - ios

Question

I am parsing xml image urls to imageview in detailviewcontroller but I passed the images through the shareddelegate.but when i click on the tableviewcell only few images occure in detailviewcontroller.
imageview.image = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:sharedDelegate.imagObj]]];
the above code I wrote in detailviewcontroller
AppDelegate *sharedDelegate = (AppDelegate*)[[UIApplication sharedApplication]delegate];
sharedDelegate.imagObj = [Imagesarray objectAtIndex:indexPath.row];
I wrote this code in tableview didselectrow method.

Answer 1

It would make your code easier to read and maintain, if you pass the data to your detailViewController in a property.
This will help detailViewController to be more self-contained, and limit what it can mutate.
Add a property to your DetailViewController for the data you want to pass. It sounds like you want to pass an array of image URLs, so add an array property:
#property (nonatomic, strong) NSArray *images;
In prepareForSegue:sender:, set the DetailViewController's passed images to the values associated with the selected row:
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)__unused sender
{
if ([[segue identifier] isEqualToString:#"showDetail"])
{
NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
DetailViewController *controller = (DetailViewController *)[segue destinationViewController];
controller.images = ...;
}
}
You don't need to have a tableView:didSelectRowAtIndexPath: method, if you create a push segue from a tableViewCell to DetailViewController within Storyboard. Give the segue an identifier (such as "showDetail"). Then in prepareForSegue, you pass the necessary data, as mentioned.

Answer 2

You can create a image property in DetailViewController
And from tableview didSelectRowAtIndexPath method. call the segue
[self performSegueWithIdentifier:#"DetailSegue" sender:indexpath];
and set it from
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([[segue identifier] isEqualToString:#"DetailSegue"])
{
DetailViewController *dc = (DetailViewController *)[segue destinationViewController];
dc.image = [imagesarray objectAtIndex:sender.row];
}
}