Pass data to new view from tableView - ios

Question

I have a table view which pushes a detailed view on cell click. The new view pushes however I'm trying to pass a web address to the detailed view which loads a webView but I'm unsure on how to do this. Here is my code:
-(void)setupArray {
webAddress = [[NSMutableDictionary alloc]init];
[webAdress setObject:#"http://www.google.com.au" forKey:#"first item"];
[webAdress setObject:#"http://www.yahoo.com.au" forKey:#"second item"];
menuItems = [webAdress allKeys];
}
-(NSInteger) tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [webAdress count];
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *simpleTableIdentifier = #"cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
}
cell.textLabel.text = [menuItems objectAtIndex:indexPath.row];
return cell;
}
- (void) tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath {
DetailViewController *detailView = [self.storyboard instantiateViewControllerWithIdentifier:#"detail"];
[self.navigationController pushViewController:detailView animated:YES];
}
Any help would be greatly appreciated.

Answer 1

You need to use a property for that in your detail view and pass the URL in the didSelectRowAtIndexPath method like this :
- (void)tableView:(UITableView *)aTableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
DetailViewController *detailView = [self.storyboard instantiateViewControllerWithIdentifier:#"detail"];
detailView.webAddress = [menuItems objectAtIndex:indexPath.row];
[self.navigationController pushViewController:detailView animated:YES];
}
and in your DetailView :
#property (nonatomic, strong) NSString *webAddress;

Answer 2

You should add an instance variable to the DetailViewController which will hold the address & set it to the desired value. Then (with the proper accessor) set it before/after pushing the view.
e.g. if you defined the variable as webAddress:
DetailViewController *detailView = [self.storyboard instantiateViewControllerWithIdentifier:#"detail"];
[detailView setWebAddress:[webAddress objectForKey:[menuItems objectAtIndex:[indexPath row]]]]; // or some other way to get the correct address
[self.navigationController pushViewController:detailView animated:YES];
The only thing that remains to be done is to set the web view's address to this value on viewWillAppear: or something.
Edit:
A sample viewWillAppear: method would look like this:
- (void)viewWillAppear:(BOOL)animated
{
// construct request
NSURL *url = [NSURL URLWithString:webAddress];
NSURLRequest *req = [NSURLRequest requestWithURL:url];
[webView loadRequest:req];
[super viewWillAppear:animated];
}