How to manage 2 UITableView (master and detail) in 1 UIView - objective-c

Question

I would like to display 2 UItableView on a same UIView. Important thing: when I select a row on the first table (master), I want to display the detail rows on the second table (detail).
In order to do that, I have :
created 1 UIViewController with 2 UITableView IB Outlet properties, linked with the 2 tables in the storyboard
set delegate and datasource for both UITableView in the root UIViewController
created 1 UITableViewController for each UITableView
implemented all the required methods for both delegates
I manage to display data in the first table, but not in the second, although the tableView:numberOfRowsInSection: is correct for the two tables.
When I run my app in debug mode, I don't see any call to the tableView:cellForRowAtIndexPath: method for the detail table.
I don't understand what I have missed or where I'm wrong. Anyone could help me ?
Here are parts of my code :
RootViewController.h
#interface RootViewController : UIViewController
{
MasterTVController * masterController;
IBOutlet UITableView * masterTV;
IBOutlet UITableView * detailTV;
}
RootViewController.m
-(void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
if (masterController == nil) {
masterController = [[masterTVController alloc] init];
}
[masterTV setDataSource:masterController];
[masterTV setDelegate:masterController];
masterController.view = masterController.tableView;
[detailTV setDataSource:masterController.detailTVController];
[detailTV setDelegate:masterController.detailTVController];
}
MasterTVController.h
#interface MasterTVController : UITableViewController <UITableViewDataSource, UITableViewDelegate>
{
NSMutableArray * masterArray;
NSMutableArray * detailArray;
DetailTVController * detailTVController;
}
MasterTVController.m
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
self.detailTVController = [[DetailTVController alloc] init];
self.detailTVController.view = self.detailTVController.tableView;
}
return self;
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
self.detailArray = [[self.masterArray objectAtIndex:indexPath.row] objectForKey:#"details"];
self.detailTVController.dataArray = detailArray;
[self.detailTVController.tableView reloadData];
}

Answer 1

I suspect your detailTVController.tableView is not set to detailTV, so that last line in tableView:didSelectRowAtIndexPath: is not sending reloadData to the right table view. Try adding this in viewDidLoad:
masterController.detailTVController.tableView = detailTV;
You might also need to set masterController.tableView in a similar fashion.
Also, one of these two lines seems suspicious:
[menusTV setDataSource:masterController];
[masterTV setDelegate:masterController];