Saving int values to Array when app closes - objective-c

Question

I have an Iphone app that uses alot of int values that will increment on IBActions, I want to save the int values to an array when the app closes so that these values are stores and used when the app is reopened. I am not sure how to write int values into an array. Functionally, I am getting this to wort with text field but not integers i.e.
int count;
code used:
NSArray *values = [[NSArray alloc] initWithObjects:fieldOne.text,fieldTwo.text,count, nil];
This gives an "Assignment makes integer from pointer without cast" message.
Is there anyway to write already stored int values into and array?
code I used is as follows:
I thinks its ok until the calling the data into the array. I have commented out some failed efforts
-(NSString *) saveFilePath{
NSArray *path = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
return [[path objectAtIndex:0] stringByAppendingPathComponent:#"savefile.plist"];
}
-(void) applicationDidEnterBackground: (UIApplication *) application{
//NSNumber *num = [[NSNumber alloc]initWithInt:count];
NSArray *values = [[NSArray alloc] initWithObjects:fieldOne.text,fieldTwo.text,[NSNumber numberWithInt:count],nil];
[values writeToFile:[self saveFilePath] atomically:YES];
[values release];
}
- (void)viewDidLoad {
//NSNumber *num = [[NSNumber alloc]initWithInt:count];
NSString *myPath = [self saveFilePath];
BOOL fileExists = [[NSFileManager defaultManager] fileExistsAtPath:myPath];
if (fileExists) {
NSArray *values = [[NSArray alloc] initWithContentsOfFile:myPath];
fieldOne.text = [values objectAtIndex:0];
fieldTwo.text = [values objectAtIndex:1];
//[NSNumber count intValue] = [values objectAtIndex:2];
[values release];
}
UIApplication *myApp = [UIApplication sharedApplication];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector (applicationDidEnterBackground:)name:UIApplicationDidEnterBackgroundNotification object:myApp];
[super viewDidLoad];
}
Thank you for your help.

Answer 1

You should use NSNumber so something like:
NSNumber *num = [NSNumber numberWithInt:int];
which will give you an object containing your int. To read back from it, use [num intValue]

Answer 2

Create a NSNumber object with your count as its value and put the object into your array. NSArrays need to be arrays of objects.

Answer 3

Container classes work with Objects not fundamental types. You have to wrap fundamental types in NSNumber (numbers) , NSData etc.