array retain question
- by Cosizzle
Hello, im fairly new to objective-c, most of it is clear however when it comes to memory managment I fall a little short. Currently what my application does is during a NSURLConnection when the method -(void)connectionDidFinishLoading:(NSURLConnection *)connection is called upon I enter a method to parse some data, put it into an array, and return that array. However I'm not sure if this is the best way to do so since I don't release the array from memory within the custom method (method1, see the attached code)
Below is a small script to better show what im doing
.h file
#import <UIKit/UIKit.h>
@interface memoryRetainTestViewController : UIViewController {
NSArray *mainArray;
}
@property (nonatomic, retain) NSArray *mainArray;
@end
.m file
#import "memoryRetainTestViewController.h"
@implementation memoryRetainTestViewController
@synthesize mainArray;
// this would be the parsing method
-(NSArray*)method1
{
// ???: by not release this, is that bad. Or does it get released with mainArray
NSArray *newArray = [[NSArray alloc] init];
newArray = [NSArray arrayWithObjects:@"apple",@"orange", @"grapes", "peach", nil];
return newArray;
}
// this method is actually
// -(void)connectionDidFinishLoading:(NSURLConnection *)connection
-(void)method2
{
mainArray = [self method1];
}
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
[super viewDidLoad];
}
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
mainArray = nil;
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc {
[mainArray release];
[super dealloc];
}
@end
