Asihttp leak

gistfile1.txt

//
//  ViewController.m
//  testAsihttpModel
//
//  Created by wgdadmin on 12-9-8.
//  Copyright (c) 2012年 wgdadmin. All rights reserved.
//

#import "ViewController.h"
#import "ASIHTTPRequest.h"

@interface ViewController ()

@end

@implementation ViewController

-(void)jumpTip:(NSString *)string
{
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"test" message:string delegate:nil cancelButtonTitle:@"cancel" otherButtonTitles:nil, nil];
    [alert show];
    [alert release];
}

-(void)threadGetDate
{
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
    NSString   *city = @"beijing";
    NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"https://maps.googleapis.com/maps/api/geocode/json?address=%@&sensor=true", city]];
    NSLog(@"city:%@",city);
//    NSURL *url2 = [[[NSURL alloc] initWithString:@"asdf"] autorelease];
    ASIHTTPRequest *request =[[[ASIHTTPRequest alloc] initWithURL:url]autorelease];
    request.delegate = self;
    //[request startAsynchronous];
    [request startSynchronous];
    NSString *string = [request responseString];
    
    
    //    NSLog(@"string:%@",string);
    [string retain];
      [pool drain];
    [url release];
//    [url2 release];
    if(nil != string )
    {
        [self performSelectorOnMainThread:@selector(jumpTip:) withObject:string waitUntilDone:YES];
    }
    [string release];
  
 
    
}


-(void)getDate:(id)sender
{
    /*
     TODO:perforce on new thread
     */
    
 //   NSString   *city = [NSString stringWithFormat:@"%@",nameField.text];
    [NSThread detachNewThreadSelector:@selector(threadGetDate) toTarget:self withObject:nil];

    /*
     TODO:perforce on main thread
     */
    
//    NSString   *city = @"beijing";
//    NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"https://maps.googleapis.com/maps/api/geocode/json?address=%@&sensor=true", city]];
//    NSLog(@"city:%@",city);
//    ASIHTTPRequest *request =[[[ASIHTTPRequest alloc] initWithURL:url]autorelease];
//    request.delegate = self;
//    [request startSynchronous];
//    NSString *string = [request responseString];
//    if(nil != string)
//    {
//        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"test" message:string delegate:nil cancelButtonTitle:@"cancel" otherButtonTitles:nil, nil];
//        [alert show];
//        [alert release];
//    }
    
}

- (void)viewDidLoad
{
    UIButton    *mapBtn = [[UIButton alloc] initWithFrame:CGRectMake(50, 50, 100, 30)];
    [mapBtn setTitle:@"get" forState:UIControlStateNormal];
    [mapBtn addTarget:self action:@selector(getDate:) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:mapBtn];
    [mapBtn release];
    
    nameField = [[UITextField alloc] initWithFrame:CGRectMake(50, 150, 80, 30)];
    [self.view addSubview:nameField];
    nameField.backgroundColor = [UIColor redColor];
    nameField.delegate = self;
    [nameField release];
    
    
    [super viewDidLoad];
	// Do any additional setup after loading the view, typically from a nib.
}

- (void)viewDidUnload
{
    [super viewDidUnload];
    // Release any retained subviews of the main view.
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}


@end