objective c 싱글 톤 공유 인스턴스가 호출되지 않음

Question

내 앱에서 싱글 톤 클래스를 구현하려고합니다.

[myAppManager sharedManager]; 

를 따를 때 내가 didFinishLaunchingWithOptions에 AppDelegate에에서 sharedManager를 호출 할 때

Appmanager.h

#import <Foundation/Foundation.h> 

@interface myAppManager : NSObject{ 

} 
+ (id)sharedManager; 
-(void)storeData; 
@end 

Appmanager.m 이제

#import "myAppManager.h" 

@implementation myAppManager 
+ (id)sharedManager { 
    static myAppManager *sharedMyManager = nil; 
    static dispatch_once_t onceToken; 
    dispatch_once(&onceToken, ^{ 
    sharedMyManager = [[self alloc] init]; 
    }); 
    return sharedMyManager; 
} 

- (id)init { 
    if (self = [super init]) { 

    } 
    return self; 
} 
-(void)storeData{ 
    NSLog(@"store data called"); 
} 
@end 

을 따를 내 sharedInstance입니다3210

sharedInstance 메서드를 호출하지 않고 디버깅 지점을 사용하려고했지만 호출하지 않습니다. 내가 뭘 잘못 했니?

[[myAppManager sharedManager] storeData]; 

이것은 또한 호출하지 않습니다.

Answer 1

@interface MyAppManager : NSObject 

+ (instancetype)sharedManager; 

- (void)storeData; 

@end 

@implementation MyAppManager 

+ (instancetype)sharedManager 
{ 
    NSLog(@"%s",__PRETTY_FUNCTION__); 

    static MyAppManager *singletonObj = nil; 

    static dispatch_once_t onceSecurePredicate; 
    dispatch_once(&onceSecurePredicate,^{ 
         singletonObj = [[self alloc] init]; 
        }); 

    return singletonObj; 
} 

- (instancetype)init 
{ 
    NSLog(@"%s",__PRETTY_FUNCTION__); 

    self = [super init]; 

    if (self) 
    { 
     NSLog(@"initialized!"); 
    } 

    return self; 
} 

- (void)storeData 
{ 
    NSLog(@"%s",__PRETTY_FUNCTION__); 
} 

@end 

Answer 2

myAppManager.h

#import <Foundation/Foundation.h> 

@interface myAppManager : NSObject 
+ (id)sharedManager; 
-(void)storeData; 
@end 

myAppManager.m

#import "myAppManager.h" 

@implementation myAppManager 

+ (id)sharedManager 
{ 
    static myAppManager *sharedMyManager = nil; 
    static dispatch_once_t onceToken; 
    dispatch_once(&onceToken, ^{ 
    sharedMyManager = [[self alloc] init]; 
    }); 
    return sharedMyManager; 
} 

- (id)init 
{ 
    if (self = [super init]) { 
    } 
    return self; 
} 
-(void)storeData 
{ 
    NSLog(@"store data called"); 
} 
@end 

AppDelegate.h

#import <UIKit/UIKit.h> 
#import "myAppManager.h" 
@interface AppDelegate : UIResponder <UIApplicationDelegate> 
{ 
    myAppManager *appManager; 
} 
@property (strong, nonatomic) UIWindow *window; 
@end 

AppDelegate.m

07 :

#import "AppDelegate.h" 
@interface AppDelegate() 
{ 
} 

@end 

@implementation AppDelegate 


- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 
{ 
    // Override point for customization after application launch. 
    appManager = [myAppManager sharedManager]; 
    [appManager storeData]; 
    return YES; 
} 

내 콘솔 출력은

2016년 8월 26일 17 14.805 SingletonClasswithAppDelegate [2383 : 77763]