navigation from tableview to another view - iphone

Question

I am working in a table view app using story board . I want to perform event on selection
of cell in table view . So when I select a cell element , a next view(detailview) should be
open for displaying further details .
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
self.dv = [[Detail alloc]initWithNibName:#"Detail" bundle:nil];
dv.dic = [self.arr1 objectAtIndex:indexPath.row];
[self.view addSubview:dv.view];
}

Answer 1

Instead try this:
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
self.dv = [[Detail alloc]initWithNibName:#"Detail" bundle:nil];
dv.dic = [self.arr1 objectAtIndex:indexPath.row];
[self presentViewController:dv animated:YES completion:nil];
}
And if you want to dismiss use this code:
[self dismissViewControllerAnimated:YES completion:nil];

Answer 2

You should use a navigation controller and when selecting a row, push the detail view into it.
To create navigation controller: selected the tableview controller and go Editor / Embed in / Navigation Controller.
Then do:
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
// dv = [Detail alloc] initWithNibName:#"Detail" bundle:nil];
dv = [storyboard instantiateViewControllerWithIdentifier:#"DetailViewController"];
dv.dic = [self.arr1 objectAtIndex:indexPath.row];
[self.navigationController pushViewController:dv];
}
The commented line is if you're not using storyboard.
Or you can do as Abdullah suggested, but implement a dismiss button with
[self dismissViewControllerAnimated:YES completion:nil];

Answer 3

In the storyboard drag a segue from the viewcontroller icon at the bottom of your view to the next viewcontroller you want to segue to. Make sure that your view is embedded in a navigation controller. Press the arrow that appears between your tableviewcontroller and the target view controller and make sure you label it with a segue identifier. Then in the method you are describing make sure they selected the correct index path with an if statement and write
[self performSegueWithIdentifier:#"theNameOfYourIdentifierFromTheStoryboard"];
That being said, I think that there is a large body of information you should research.
Read this: http://www.appcoda.com/use-storyboards-to-build-navigation-controller-and-table-view/ as a start.