在将此问题作为问题发布到AFNetworking回购后,事实证明这实际上是我的使用问题.根据我的问题回复：

NSURLSession retains its delegate (i.e. AFURLSessionManager). Call invalidateSessionCancelingTasks: to ensure that sessions finalize and release their delegate.

所以,长话短说：如果你以下面描述的方式使用AHTTPSessionManager,请确保调用invalidateSessionCancelingTasks：以确保会话最终确定并释放其委托

原始问题

我有一个名为GTAPIClient的子类AFHTTPSessionManager,我用它连接到我的REST API.我意识到文档声明要用作单例,但在某些情况下我需要编写一个新实例.但是,似乎每当我这样做时,对象永远不会被释放.目前,GTAPIClient在解除分配时除了NSLog本身之外什么都不做.
这是一些演示行为的示例代码

GTAPIClient.m

@implementation GTAPIClient
- (void)dealloc
{
    NSLog(@"Dealloc: %@",self);    
}

@end

GTViewController.m

#import "GTBaseEntityViewController.h"

//Models
#import "GTBaseEntity.h"

//Clients
#import "GTAPIClient.h"

@interface GTBaseEntityViewController ()

@property (nonatomic,weak) GTAPIClient *client;
@property (nonatomic,weak) GTBaseEntity *weakEntity;

@end

@implementation GTBaseEntityViewController

- (IBAction)makeClient:(id)sender {

    self.client = [[GTAPIClient alloc] init];
    NSLog(@"I just made an API client %@",self.client);

    //Another random object assigned to a similar property,just to see what happens.
    self.weakEntity = [[GTBaseEntity alloc] init];
    NSLog(@"I just made a random object %@",self.weakEntity);

}

- (IBAction)checkClient:(id)sender {

    NSLog(@"Client: %@",self.client);
    NSLog(@"Entity: %@",self.weakEntity);

}

@end

NSLog输出

Fire makeClient：

//It seems to me that both NSLog's should return (null) as they are assigning to a weak property
2014-06-22 16:41:39.143 I just made an API client <GTAPIClient: 0x10b913680,baseURL: (null),session: <__NSCFURLSession: 0x10b915010>,operationQueue: <NSOperationQueue: 0x10b9148a0>{name = 'NSOperationQueue 0x10b9148a0'}>
2014-06-22 16:41:39.144 I just made a random object (null)

Fire checkClient

//Again,both NSLog's should return null for the two objects. However...client is still around. Also,it's overridden dealloc method never fired.

2014-06-22 16:44:43.722  Client: <GTAPIClient: 0x10b913680,operationQueue: <NSOperationQueue: 0x10b9148a0>{name = 'NSOperationQueue 0x10b9148a0'}>
2014-06-22 16:44:43.723 Entity: (null)

作为参考,我正在使用AFNetworking的v2.3.1.编译器警告我,将保留对象分配给weak属性将在赋值后释放 – 这是正确的,并且与我的随机对象一起运行.应用程序中没有其他任何内容.没有其他视图控制器,GTAPIClient上没有其他方法,所有单例功能都被删除.对我在这里做错了什么的想法？