Access variables from another class - objective-c

Question

I'm a beginner at Objective-C programming and I need to access data stored in a NSMutableArray from another class for populating a TableView, however I only get null.
The variables I need to access are in the class below:
FunctionsController.h
#import <UIKit/UIKit.h>
#interface FunctionsController : UIView {
#public NSMutableArray *placesNames;
NSMutableArray *placesAdresses;
NSMutableArray *placesReferences;
NSMutableArray *placesLatitudes;
NSMutableArray *placesLongitudes;
NSArray *list;
}
#end
In this other class I'm trying to access the data but I only get null as result.
SimpleSplitController.m
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];
}
FunctionsController *arrays = [[FunctionsController alloc] init];
NSMutableArray *names = [arrays->placesNames];
// Set up the cell...
cell.textLabel.text = [names objectAtIndex:indexPath.row];
cell.textLabel.adjustsFontSizeToFitWidth = YES;
cell.textLabel.font = [UIFont systemFontOfSize:12];
cell.textLabel.minimumFontSize = 10;
cell.textLabel.numberOfLines = 4;
cell.textLabel.lineBreakMode = UILineBreakModeWordWrap;
return cell;
}

Answer 1

The problem is here:
FunctionsController *arrays = [[FunctionsController alloc] init];
NSMutableArray *names = [arrays->placesNames];
First you are allocating the FunctionsController again. That gives you a clean new instance with no data in its variables. If that 'init' is not putting that in those variables you aren't gonna get anything from them.
A second problem I see is that you are accessing the variable directly. I would use properties instead. You declare a property by doing this in your FunctionsController.h:
#property (nonatomic, retain) NSMutableArray *placesNames;
And adding this to your FunctionsController.m:
#synthesize placesNames;
And then you access the property by doing this:
NSMutableArray *names = arrays.placesNames;
Finally I would recommend you to use Core Data for storing that data instead because it seems that it should belong to a SQL database. More about Core Data here: http://developer.apple.com/library/ios/#DOCUMENTATION/DataManagement/Conceptual/iPhoneCoreData01/Introduction/Introduction.html

Answer 2

Here's your problem:
FunctionsController *arrays = [[FunctionsController alloc] init];
NSMutableArray *names = [arrays->placesNames];
Unless you're setting up placesNames in the init method of FunctionsController then it will either be empty or nil.
Take a look at singletons on objective-c.