오늘 확장 내에서 URL 세션 사용

Question

완료 블록이 작동하지 않는 이유를 알지 못합니다. 먼저 현재 위치를 찾은 다음 위도와 경도를 사용하여 서버에서 데이터를 가져옵니다. NSURLSessionDelegate를 사용하여 백그라운드 세션을 시도했지만 데이터를 얻지 못했습니다.

- (void)widgetPerformUpdateWithCompletionHandler:(void (^)(NCUpdateResult))completionHandler { 
    // Perform any setup necessary in order to update the view. 

    [self updateWidget]; 
    self.placeImageView.image = [UIImage imageNamed:@"no-image"]; 
    self.crowdednessLevelImageView.image = [UIImage imageNamed:@"circle-crowd"]; 
    self.placeImageView.layer.cornerRadius = 10; 

    NSUserDefaults *defaults = [[NSUserDefaults standardUserDefaults] initWithSuiteName:@"group.wherepeeps.mostCrowdedPlace.widgert"]; 
    NSString *coordinateString = [defaults objectForKey:@"CurrentLocationCoordinateString"]; 
    NSDictionary *responseObject = [defaults objectForKey:@"listOfPlacesForWidget"]; 
    NSLog(@"responseObject - %@", responseObject); 
    if (coordinateString) { 
     NSString *stringUrl = [NSString stringWithFormat:@"https://sheltered-fjord-29765.herokuapp.com/api/v1/search?location=%@", coordinateString]; 
     NSURLSession *mySession = [self configureMySession]; 
     NSURL *url = [NSURL URLWithString:stringUrl]; 
     [mySession dataTaskWithURL:url completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) { 
      NSDictionary *responseObject = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error]; 
      NSUserDefaults *defaults = [[NSUserDefaults standardUserDefaults] initWithSuiteName:@"group.wherepeeps.mostCrowdedPlace.widgert"]; 
      [defaults setObject:responseObject forKey:@"listOfPlacesForWidget"]; 
      [defaults synchronize]; 
      NSLog(@"responseObject - %@", responseObject); 
      completionHandler(NCUpdateResultNewData); 
     }];  

    } else { 
     completionHandler(NCUpdateResultNoData); 
    } 
} 

- (NSURLSession *)configureMySession { 
    if (!self.mySession) { 
     // NSURLSessionConfiguration* config = [NSURLSessionConfiguration backgroundSessionConfigurationWithIdentifier:@"com.mycompany.myapp.backgroundsession"]; 
     NSURLSessionConfiguration* config = [NSURLSessionConfiguration defaultSessionConfiguration]; 
     // To access the shared container you set up, use the sharedContainerIdentifier property on your configuration object. 
     config.sharedContainerIdentifier = @"com.mycompany.myappgroupidentifier"; 
     self.mySession = [NSURLSession sessionWithConfiguration:config delegate:self delegateQueue:nil]; 
    } 
    return self.mySession; 
} 

Answer 1

persormSelectorOnMainThread를 사용하여 주 스레드에서 Nsurlsession 요청을 호출 해보십시오.