数组保留问题

我对Objective-C还比较陌生,但是大部分都很清楚,但是当涉及到记忆管理时,我有点缺了。目前,我的应用程序所做的是在nsurlconnection期间 -(void)connectionDidFinishLoading:(NSURLConnection *)connection 我输入了一个方法来解析一些数据,将其放入一个数组中,然后返回该数组。但是,我不确定这是否是最好的方法,因为我没有在自定义方法(方法1,请参见附加的代码)中从内存中释放数组。

下面是一个小脚本,可以更好地显示我在做什么

h文件

#import <UIKit/UIKit.h>

@interface memoryRetainTestViewController : UIViewController {

    NSArray *mainArray;

}

@property (nonatomic, retain) NSArray *mainArray;

@end

m文件

#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