Accessing variable from different View Controllers - ios

Question

I have developed an application using a TableView connected to a SQLite database with a search bar and everything works well.
I have a detail view controller that shows me infos about a clicked row. How can I pass a variable from AuthorVC.m to Details.m?
Partial code :
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
NSLog(#"prepareForSegue: %#", segue.identifier);
if ([segue.identifier isEqualToString:#"Details"])
// segue.identifier value here
{
Details *dv = segue.destinationViewController;
dv.labelText.text = author.title;
// author.title = dv.labelText.text ;
// your value to pass
[segue.destinationViewController setLabelText:author.title];
}
}

Answer 1

Do this:
Create property of variable in myDetails to pass data
Suppose i have NSString *strAuthoTitle in myDetails
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
//Depending upon cell index pass your data differently
myDetails *objmyDetails = [myDetails alloc] initWithNib:#"myDetails" bundle:nil] //alloc your controller for navigation
objmyDetails.strAuthoTitle = [yourArrayofAuthorTile objectAtIndex:indexPath.row];
//Simarly other data can be passed
}
As u not mentioned that u were using storyboard so for that u need to create a segue between AuthorVC to Details controlers and use that segue
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{  
//NSLog(#"prepareForSegue: %#", segue.identifier);      
if ([segue.identifier isEqualToString:#"DetailsPass"]) // segue.identifier value here
{
objmyDetails = segue.destinationViewController;
objmyDetails.strText =lblText.text; // your value to pass
//[segue.destinationViewController setStrText:lblText.text];
}  
}

Answer 2

lets say you have 2 properties in your detailedVC strName and strDescription...
than before pushing the detailedVC in the stack, you could simple do something like:
detailedVCObject.strName = #"whatever";
detailedVCObject.strDescription = #"whatever";
hope it would help...

Answer 3

With story board
How pass data in seque ios5 storyboard uitableview to detail view
http://kurrytran.blogspot.in/2011/10/ios-5-storyboard-and.html
Without story board
For this you have to access varible in class one let see below example for example on click of table row you have to navigate on another view say root view. So for this define a variable in root view and access this view when you create object in didselect method of table.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
RootViewController *rvController = [[RootViewController alloc] initWithNibName:#"RootViewController" bundle:[NSBundle mainBundle]];
//Increment the Current View
rvController.CurrentLevel += 1;
//Set the title;
rvController.CurrentTitle = [dictionary objectForKey:#"Title"];
//Push the new table view on the stack
[self.navigationController pushViewController:rvController animated:YES];
[rv release]
}