UNIRest：非同期HTTP応答で新しいViewControllerに切り替えます

私はUNIRest libraryを使用しており、HTTP GET methodの応答で別のViewControllerに切り替えようとしています。でもNSLogを使用して応答を印刷した後UNIRest：非同期HTTP応答で新しいViewControllerに切り替えます

[[UNIRest get:^(UNISimpleRequest *request) { 
     [request setUrl:GEtFamilyMembers]; 
    }] asJsonAsync:^(UNIHTTPJsonResponse* response, NSError *error) { 
     NSLog(@"res: %@", response.body); 
     if (response.code == 200) { 
      GCHFamilyMembersViewConroller* fmViewController = [self.storyboard instantiateViewControllerWithIdentifier:@"gchFamilyMembers"]; 

      self.navigationController.viewControllers = @[fmViewController]; 
      [self.mm_drawerController setCenterViewController:self.navigationController withCloseAnimation:YES completion:nil]; 
     } else { 
      [self showToast:@"Something went wrong, Please try again after some time."]; 
     } 
    }];

。約30秒間何も起こらない。その後、突然アプリがクラッシュします。

私のようなので、私疲れメソッド非同期呼び出しブロックUIからだと考えた：

まだアプリがクラッシュします。

以前私がSynchronousを使用していたときは、それが機能していました。しかし今ではありません。助けてください！

EDIT：

2016-05-02 17:58:22.695 Checkme Mobile[6208:136321] *** Assertion failure in -[UIKeyboardTaskQueue waitUntilAllTasksAreFinished], /SourceCache/UIKit_Sim/UIKit-3347.44.2/Keyboard/UIKeyboardTaskQueue.m:374 
2016-05-02 17:58:22.728 Checkme Mobile[6208:136224] NSScanner: nil string argument 
2016-05-02 17:58:22.728 Checkme Mobile[6208:136224] NSScanner: nil string argument 
2016-05-02 17:58:23.730 Checkme Mobile[6208:136224] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '-[UIKeyboardTaskQueue waitUntilAllTasksAreFinished] may only be called from the main thread.' 
*** First throw call stack: 
(
    0 CoreFoundation      0x00000001094a6c65 __exceptionPreprocess + 165 
    1 libobjc.A.dylib      0x0000000108da2bb7 objc_exception_throw + 45 
    2 CoreFoundation      0x00000001094a6aca +[NSException raise:format:arguments:] + 106 
    3 Foundation       0x00000001089b798f -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 195 
    4 UIKit        0x0000000107d887d6 -[UIKeyboardTaskQueue waitUntilAllTasksAreFinished] + 151 
    5 UIKit        0x0000000107829912 -[UIKeyboardImpl setDelegate:force:] + 473 
    6 UIKit        0x0000000107ad44ad -[UIPeripheralHost(UIKitInternal) _reloadInputViewsForResponder:] + 1002 
    7 UIKit        0x0000000107adc834 -[UIPeripheralHost(UIKitInternal) _preserveInputViewsWithId:animated:reset:] + 504 
    8 UIKit        0x000000010778e181 -[UINavigationController navigationTransitionView:didStartTransition:] + 578 
    9 UIKit        0x00000001079948bc -[UINavigationTransitionView transition:fromView:toView:] + 655 
    10 UIKit        0x0000000107792170 -[UINavigationController _startTransition:fromViewController:toViewController:] + 2984 
    11 UIKit        0x0000000107792408 -[UINavigationController _startDeferredTransitionIfNeeded:] + 523 
    12 UIKit        0x0000000107792ece -[UINavigationController __viewWillLayoutSubviews] + 43 
    13 UIKit        0x00000001078dd6d5 -[UILayoutContainerView layoutSubviews] + 202 
    14 UIKit        0x00000001076b09eb -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 536 
    15 QuartzCore       0x0000000109d83ed2 -[CALayer layoutSublayers] + 146 
    16 QuartzCore       0x0000000109d786e6 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 380 
    17 QuartzCore       0x0000000109d78556 _ZN2CA5Layer28layout_and_display_if_neededEPNS_11TransactionE + 24 
    18 QuartzCore       0x0000000109ce486e _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 242 
    19 QuartzCore       0x0000000109ce5a22 _ZN2CA11Transaction6commitEv + 462 
    20 QuartzCore       0x0000000109ce5c99 _ZN2CA11Transaction14release_threadEPv + 199 
    21 libsystem_pthread.dylib    0x000000010a35172a _pthread_tsd_cleanup + 86 
    22 libsystem_pthread.dylib    0x000000010a351451 _pthread_exit + 117 
    23 libsystem_pthread.dylib    0x000000010a3506cd _pthread_wqthread + 879 
    24 libsystem_pthread.dylib    0x000000010a34e40d start_wqthread + 13 
) 
2016-05-02 17:58:23.730 Checkme Mobile[6208:136321] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '-[UIKeyboardTaskQueue waitUntilAllTasksAreFinished] may only be called from the main thread.' 
*** First throw call stack: 
(
    0 CoreFoundation      0x00000001094a6c65 __exceptionPreprocess + 165 
    1 libobjc.A.dylib      0x0000000108da2bb7 objc_exception_throw + 45 
    2 CoreFoundation      0x00000001094a6aca +[NSException raise:format:arguments:] + 106 
    3 Foundation       0x00000001089b798f -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 195 
    4 UIKit        0x0000000107d887d6 -[UIKeyboardTaskQueue waitUntilAllTasksAreFinished] + 151 
    5 UIKit        0x0000000107829912 -[UIKeyboardImpl setDelegate:force:] + 473 
    6 UIKit        0x0000000107ad44ad -[UIPeripheralHost(UIKitInternal) _reloadInputViewsForResponder:] + 1002 
libc++abi.dylib: 7 UIKit        0x0000000107adc834 -[UIPeripheralHost(UIKitInternal) _preserveInputViewsWithId:animated:reset:] + 504 
    8 UIKit        0x000000010778e181 -[UINavigationController navigationTransitionView:didStartTransition:] + 578 
    9 UIKit        0x00000001079948bc -[UINavigationTransitionView transition:fromView:toView:] + 655 
    10 UIKit        0x0000000107792170 -[UINavigationController _startTransition:fromViewController:toViewController:] + 2984 
    11 UIKit        0x0000000107792408 -[UINavigationController _startDeferredTransitionIfNeeded:] + 523 
    12 UIKit        0x0000000107792ece -[UINavigationController __viewWillLayoutSubviews] + 43 
    13 UIKit        0x00000001078dd6d5 -[UILayoutContainerView layoutSubviews] + 202 
    14 UIKit        0x00000001076b09eb -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 536 
    15 QuartzCore       0x0000000109d83ed2 -[CALayer layoutSublayers] + 146 
    16 QuartzCore       0x0000000109d786e6 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 380 
    17 QuartzCore       0x0000000109d78556 _ZN2CA5Layer28layout_and_display_if_neededEPNS_11TransactionE + 24 
    18 QuartzCore       0x0000000109ce486e _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 242 
    19 QuartzCore       0x0000000109ce5a22 _ZN2CA11Transaction6commitEv + 462 
    20 QuartzCore       0x0000000109ce5c99 _ZN2CA11Transaction14release_threadEPv + 199 
    21 libsystem_pthread.dylib    0x000000010a35172a _pthread_tsd_cleanup + 86 
    22 libsystem_pthread.dylib    0x000000010a351451 _pthread_exit + 117 
    23 libsystem_pthread.dylib    0x000000010a3506cd _pthread_wqthread + 879 
    24 libsystem_pthread.dylib    0x000000010a34e40d start_wqthread + 13 
) 
terminating with uncaught exception of type NSExceptionlibc++abi.dylib: 
terminating with uncaught exception of type NSException 
(lldb)

編集：

- (IBAction)loginAction:(id)sender { 
    self.email = usernameTextField.text; 
    self.password = passwordTextField.text; 
    if(!([self.email isEqualToString:@""] && [self.password isEqualToString:@""])) { 
     [self performLogin]; 
    } else{ 
     UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"error" message:@"Enter both username and password." delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil, nil]; 
     [alert show]; 
    } 
} 

- (void) performLogin { 
    NSDictionary* headers = @{@"Content-Type": @"application/x-www-form-urlencoded"}; 
    NSDictionary* parameters = @{@"username": self.email, @"password": self.password}; 
    [[NSThread currentThread] isMainThread] ? NSLog(@"1MAIN THREAD") : NSLog(@"1NOT MAIN THREAD"); 
    self.loginConnection = [[UNIRest post:^(UNISimpleRequest *request) { 
     [request setUrl:LOgin]; 
     [request setHeaders:headers]; 
     [request setParameters:parameters]; 
    }] asJsonAsync:^(UNIHTTPJsonResponse* response, NSError *error) { 
     // This is the asyncronous callback block 
     [[NSThread currentThread] isMainThread] ? NSLog(@"2MAIN THREAD") : NSLog(@"2NOT MAIN THREAD"); 
     UNIJsonNode *body = response.body; 
     NSData *rawBody = response.rawBody; 
     NSString *string = [[NSString alloc] initWithData:rawBody encoding:NSUTF8StringEncoding]; 
     NSLog(@"response signup: %@", string); 
     if (response.code == 200) { 
      [self processLoginResponse:body]; 
     } 
    }]; 

} 


- (void) processLoginResponse:(UNIJsonNode *) body { 
    if ([body.JSONObject[@"status"] boolValue] == YES) { 
     NSString *firstName = body.JSONObject[@"firstName"]; 
     NSString *lastName = body.JSONObject[@"lastName"]; 
     NSString *name = [firstName stringByAppendingString:lastName]; 
     NSMutableDictionary *mDictionary = [[NSMutableDictionary alloc] init]; 
     [mDictionary setObject:body.JSONObject[@"accountId"] forKey:@"accountId"]; 
     [mDictionary setObject:name forKey:@"name"]; 
     [mDictionary setObject:@"Custodian" forKey:@"relation"]; 
     [self fetchFamilyMembers:mDictionary]; 
    } else { 
     [self showAlert:body.JSONObject[@"message"]]; 
    } 
} 

- (void) fetchFamilyMembers:(NSMutableDictionary *) mDictionary { 
    [[NSThread currentThread] isMainThread] ? NSLog(@"3MAIN THREAD") : NSLog(@"3NOT MAIN THREAD"); 
    self.fmConnection = [[UNIRest get:^(UNISimpleRequest *request) { 
     [request setUrl:GEtFamilyMembers]; 
    }] asJsonAsync:^(UNIHTTPJsonResponse* response, NSError *error) { 
     NSLog(@"res: %@", response.body); 
     if (response.code == 200) { 
      [[NSThread currentThread] isMainThread] ? NSLog(@"4MAIN THREAD") : NSLog(@"4NOT MAIN THREAD"); 
      NSData *rawBody = response.rawBody; 
      NSString *string = [[NSString alloc] initWithData:rawBody encoding:NSUTF8StringEncoding]; 
      NSLog(@"family signup: %@", string); 
      [[NSThread currentThread] isMainThread] ? NSLog(@"5MAIN THREAD") : NSLog(@"5NOT MAIN THREAD"); 
      [self processFamilyMembersResponse:mDictionary :response.body]; 

     } else { 
      [self showToast:@"Something went wrong, Please try again after some time."]; 
     } 
    }]; 
} 

- (void) processFamilyMembersResponse:(NSMutableDictionary *) mDictionary :(UNIJsonNode *) body { 

    NSArray *fmArray = body.JSONArray; 
    if (fmArray == nil || [fmArray count] == 0) { 
     NSNumber *accountId = (NSNumber *)[mDictionary objectForKey:@"accountId"]; 

    } else { 
     NSMutableArray *mArray = [[NSMutableArray alloc] init]; 
     [mArray addObject:mDictionary]; 
     for (int i = 0; i < fmArray.count; i++) { 
      NSDictionary *fmDictionary = [fmArray objectAtIndex:i]; 
      mDictionary = [[NSMutableDictionary alloc] init]; 
      NSNumber *accountId = (NSNumber *)[fmDictionary objectForKey:@"id"]; 
      [mDictionary setObject:accountId forKey:@"accountId"]; 
      [mDictionary setObject:[fmDictionary objectForKey:@"name"] forKey:@"name"]; 
      [mDictionary setObject:[fmDictionary objectForKey:@"relation"] forKey:@"relation"]; 
      [mArray addObject:mDictionary]; 
     } 
     [[NSThread currentThread] isMainThread] ? NSLog(@"6MAIN THREAD") : NSLog(@"6NOT MAIN THREAD"); 
     [self gotoSelectFamilyMembers:mArray]; 
    } 

} 

- (void) gotoSelectFamilyMembers:(NSMutableArray *) mArray { 
    dispatch_async(dispatch_get_main_queue(), ^{ 
     GCHFamilyMembersViewConroller* fmViewController = [self.storyboard instantiateViewControllerWithIdentifier:@"gchFamilyMembers"]; 
     fmViewController._tblData = mArray; 
     self.navigationController.viewControllers = @[fmViewController]; 
     [self.mm_drawerController setCenterViewController:self.navigationController withCloseAnimation:YES completion:nil]; 
    }); 
}

出典

2016-05-02 HeisenBerg

それがクラッシュし、エラーは何ですか？ – Larme

@Larme編集 – HeisenBerg

試してみてください。

dispatch_async(dispatch_get_main_queue(), ^{ 
     GCHFamilyMembersViewConroller* fmViewController = [self.storyboard instantiateViewControllerWithIdentifier:@"gchFamilyMembers"]; 
     fmViewController._tblData = mArray; 

     ((AppDelegate*)[[UIApplication sharedApplication]delegate]).navigationController.viewControllers = @[fmViewController]; 
     [self.mm_drawerController setCenterViewController:((AppDelegate*)[[UIApplication sharedApplication]delegate]).navigationController withCloseAnimation:YES completion:nil]; 
    });

出典

2016-05-02 13:40:04

あなたはUnirestの非同期呼び出しを使用していて、応答がUI thread (Main thread)に呼び出されなければなりません。通常これに似たライブラリは、メインスレッドで結果を提供します。したがって、main queueには特にdispatch_asyncを呼び出す必要はありません。ただし、次のチェックを使用して、メインスレッドで呼び出されるかどうかを確認することができます。ここで

[[NSThread currentThread] isMainThread] ? NSLog(@"MAIN THREAD") : NSLog(@"NOT MAIN THREAD");

は、私はあなたの ViewController作成方法は、いくつかの障害が発生している

疑うものだと時間を消費している
あなたの応答が非常に大きい

私はあなたがすることなく、次のように呼び出すことを示唆していますクラッシュを引き起こさないことを確認するWebサービス呼び出し。コードの下

GCHFamilyMembersViewConroller* fmViewController = [self.storyboard instantiateViewControllerWithIdentifier:@"gchFamilyMembers"]; 

      self.navigationController.viewControllers = @[fmViewController]; 
      [self.mm_drawerController setCenterViewController:self.navigationController withCloseAnimation:YES completion:nil];

出典

2016-05-02 12:32:44

はい、Web呼び出しなしで動作しています。そして、私は自分のポストで、私は同期の呼び出しで動作したと言った – HeisenBerg

こんにちは、私は実行中のブロックがメインスレッド上で実行されているかどうかをチェックする方法を含む私の答えを変更しました。あなたはあなたのログから、UIを更新するために非メインスレッドが使用されている可能性があることを確認できますか？ –

さて、それはNOT MAIN THREADです。メインスレッドに戻るにはどうしたらいいですか？ – HeisenBerg

UNIRest：非同期HTTP応答で新しいViewControllerに切り替えます

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