MutableArray永久存储信息

Question

flickPhotosSearch应该做什么评论自我。图像线确实。如果我取消注释，它工作正常，但由于我需要它动态工作，我需要让flickrPhotoSearch做同样的事情。它将相同的信息保存到图像数组中，但是当它离开该方法时，它不再起作用。

[self flickrPhotosSearch:url]; 
/* self.images = [[NSMutableArray alloc] initWithObjects: 
          [NSArray arrayWithObjects:@"http://farm6.staticflickr.com/5095/5426345292_40ec29d5ea.jpg", @"http://farm6.staticflickr.com/5095/5426345292_40ec29d5ea_s.jpg", nil], nil]; */ 


     NSLog(@"%@", self.images); 

    } 
    return self; 
} 

-(void)flickrPhotosSearch:(NSURL *) url { 

    NSURLRequest *request = [[NSURLRequest alloc] initWithURL:url]; 
    AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) { 

     NSDictionary *photos = [JSON objectForKey:@"photos"]; 
     self.picturesOfLocations = [photos objectForKey:@"photo"]; 


     for (NSDictionary * photo in self.picturesOfLocations){ 



      NSString* flickrfarmID = [photo objectForKey:@"farm"]; 
      NSString* flickrServer = [photo objectForKey:@"server"]; 
      NSString* flickrID = [photo objectForKey:@"id"]; 
      NSString* flickrSecret = [photo objectForKey:@"secret"]; 

      NSString *stringURLOriginalImage = [[NSString alloc] initWithFormat:@"http://farm%@.staticflickr.com/%@/%@_%@.jpg",flickrfarmID,flickrServer, flickrID,flickrSecret]; 
      NSString *stringURLSmallImage = [[NSString alloc] initWithFormat:@"http://farm%@.staticflickr.com/%@/%@_%@_s.jpg",flickrfarmID,flickrServer, flickrID,flickrSecret]; 


      [self.images addObject:[NSArray arrayWithObjects:stringURLOriginalImage,stringURLSmallImage, nil]]; 

      NSLog(@"%@", self.images); 


     } 


    } failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) { 

     NSLog(@"Request Failed with Error: %@, %@", error, error.userInfo); 

    }]; 
    [operation start]; 

} 

Answer 1

变化：

self.images = [[NSMutableArray alloc] initWithObjects: [NSArray arrayWithObjects:@"http://farm6.staticflickr.com/5095/5426345292_40ec29d5ea.jpg", @"http://farm6.staticflickr.com/5095/5426345292_40ec29d5ea_s.jpg", nil], nil]; 

要：

[self.images addObject:@"http://farm6.staticflickr.com/5095/5426345292_40ec29d5ea.jpg"]; 
[self.images addObject:@"http://farm6.staticflickr.com/5095/5426345292_40ec29d5ea_s.jpg"];