reloadData for TableView not loading cellForRowAtIndexPath or row count - objective-c

Question

I am trying (in vain) to reload tableView in MasterViewController from another View Controller SitesViewController. I use this code in the SitesViewController:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
NSInteger row = [[self tableView].indexPathForSelectedRow row];
//NSArray *appcell = [sitesMenu objectForKey:#"Table"];
NSLog(#"AppCell %#", sitesMenu);
NSDictionary *entry = [sitesMenu objectAtIndex:row];
self.siteid = [entry objectForKey:#"SITEID"];
NSLog(#" sample SiteView %#", siteid);
NDSClassMasterViewController *detailControllerTwo = [[NDSClassMasterViewController alloc] init];
detailControllerTwo.globalid = siteid;
NSLog(#"message %#", detailControllerTwo.globalid);
[detailControllerTwo fetchTweets];
dispatch_async(dispatch_get_main_queue(), ^{
[detailControllerTwo.tableView reloadData];
NSLog(#"%#", detailControllerTwo);
});
// Navigation logic may go here. Create and push another view controller.
/*
<#DetailViewController#> *detailViewController = [[<#DetailViewController#> alloc] initWithNibName:#"<#Nib name#>" bundle:nil];
// ...
// Pass the selected object to the new view controller.
[self.navigationController pushViewController:detailViewController animated:YES];
*/
}
and this code for the method I am calling:
- (void)fetchTweets
{
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
NSString *siteurl = [[NSString alloc] initWithFormat:#"http://adhoc.nyxtek.co.za/spfjsonws/default2.aspx?siteid=%#", globalid];
NSData* data = [NSData dataWithContentsOfURL:
[NSURL URLWithString: siteurl]];
NSError* error;
menuItems = [NSJSONSerialization JSONObjectWithData:data
options:kNilOptions
error:&error];
NSLog(#"%#", menuItems);
dispatch_async(dispatch_get_main_queue(), ^{
[self.tableView reloadData];
});
});
}
I have even added the reload code into the SiteViewController didSelectRow method.
I have read that I should add a property for it and synthesize but I have tried that but not sure how to add a property for UITableView to reference to the existing one.
The fetchTweets code runs, but the TableView doesn't reload.
Any assistance would be appreciated.
EDIT
This is the TableView code where I load the items in the cell:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"TweetCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
//NSString *name = [[[menuItems objectForKey:#"Table"] objectAtIndex:0] objectForKey:#"MENUID"];
NSDictionary *tweet = [[menuItems objectForKey:#"Table"] objectAtIndex:indexPath.row];
//NSLog(#"%#", tweet);
NSString *text = [tweet objectForKey:#"MENUDESC"];
NSString *name = [tweet objectForKey:#"MENUDESC"];
NSLog(#"TEST 1%#", text);
cell.textLabel.text = text;
cell.detailTextLabel.text = [NSString stringWithFormat:#"by %#", name];
return cell;
}

Answer 1

Instead of exposing the table view via a property, why not simply write a function within the view controller that contains the code that would reload the data?
E.G. instead of:
[detailControllerTwo.tableView reloadData];
Declare a method in your MasterViewController that looks like:
- (void) updateTable
{
// tableView is declared as an IBOutlet
[tableView reloadData];
}
and then you can call that with:
dispatch_async(dispatch_get_main_queue(), ^{
[detailControllerTwo updateTable];
NSLog(#"%#", detailControllerTwo);
});