Question

我有一个名为FHSUploadManager的NSObject，它是一个单例对象。一切似乎都在起作用，今天我一直在收到一些奇怪的消息。

2011-09-16 13:26:05.892 FHMedia[6038:6903] -[FHSUploadManager initialize]: unrecognized selector sent to instance 0x6b96900

2011-09-16 13:26:06.975 FHMedia[6038:6903] *** NSInvocation: warning: object 0xb0352cb8 of class 'úè0°8s†Gà–!Ä' does not implement methodSignatureForSelector: -- trouble ahead

2011-09-16 13:26:06.983 FHMedia[6038:6903] *** NSInvocation: warning: object 0xb0352cb8 of class 'úè0°8s†Gà–!Ä' does not implement doesNotRecognizeSelector: -- abort

看起来好像什么都坏了，但这些消息让我很担心。谁看过这个吗？任何人都知道如何调试它？

我已经采取了一些隐私和空间的方法。

这是我的FHSUploadManager.h

@class ListObject;
@class MergedItem;
@class ServerSync;
@class AppDelegate_Shared;
@class RegisteredUser;
@interface FHSUploadManager : NSObject {
    NSMutableArray *uploadItems;

    NSMutableArray *objectIds;

    // KVO values
    BOOL isSyncing; 
    NSString *uploadingStatus;
    ListObject *uploadObject;

    AppDelegate_Shared *appDelegate;
    ServerSync *sync;
}

@property (assign) BOOL isSyncing;
@property (assign) NSString *uploadingStatus;
@property (assign) ListObject *uploadObject;

@property (assign) AppDelegate_Shared *appDelegate;

@end

这是FHSUploadManager.m

#import "FHSUploadManager.h"
#import "ListObject.h"

#import "Reachability.h"
#import "ServerSync.h"
#import "AppDelegate_Shared.h"

#import "ItemAttribute.h"
#import "CoreItem.h"
#import "Media.h"

#import "MergedItem.h"
#import "WebServices.h"

#import "NSManagedObject+XML.h"
#import "NSNotificationCenter+MainThread.h"

#import "PowerMeXMLParser.h"
#import "RegisteredUser.h"

#import "TBXML.h"

static FHSUploadManager* sharedInstanceFHSUploadManager = nil;

@implementation FHSUploadManager

@synthesize isSyncing;
@synthesize uploadingStatus;
@synthesize uploadObject;
@synthesize appDelegate;

- (void)dealloc {
    [uploadItems release];
    [uploadingStatus release];
    [uploadObject release];

    [objectIds release];
    [sync release];

    [super dealloc];
}

-(void)startUpload
{
    if( !isSyncing )
    {
        self.isSyncing = YES;
        [self performSelectorInBackground:@selector(uploadingInBackground) withObject:nil];
    }
}

// !!! Other methods and not added here. !!!


#pragma mark - Apple Boiler Plate Singleton -
+ (FHSUploadManager*)sharedInstance {

    @synchronized(self)
    {
        if (sharedInstanceFHSUploadManager == nil) {
            sharedInstanceFHSUploadManager = [[super allocWithZone:NULL] init];

            sharedInstanceFHSUploadManager.isSyncing = NO;
            sharedInstanceFHSUploadManager.appDelegate = (AppDelegate_Shared*)[[UIApplication sharedApplication] delegate];
        }
    }
    return sharedInstanceFHSUploadManager;  
}

+ (id)allocWithZone:(NSZone *)zone {
    return [[self sharedInstance] retain];  
}

- (id)copyWithZone:(NSZone *)zone {
    return self;    
}

- (id)retain {  
    return self;
}

- (NSUInteger)retainCount {
    return NSUIntegerMax;  //denotes an object that cannot be released  
}

- (void)release {
    //do nothing    
}

- (id)autorelease {
    return self;    
}


@end

更新评论后说已消失

回来了！我和一位程序员谈过，他想知道我是不是在踩着一些记忆。所以我将再研究一下。

Answer 1

看起来你不是从NSObject继承......

Answer 2

FHSUploadManager对象类正在取消分配。在编辑方案中启用僵尸对象。您将获得已解除分配的实例的日志。

Answer 3

释放后，您可能正在访问该对象。

在FHSUploadManager dealloc方法上添加断点。

无法识别的选择器发送到实例

3 个答案: