如何從IOS中的NSDictionary中獲取圖像數組

Question

我想獲得帶有配方ID的所有圖像的數組，並希望將此圖像數組傳遞給下一個viewController，但我的問題是我只獲取一個圖像，我使用recipeDC作爲實體類，對我應該使用其他實體類或者它也可以通過使用相同的類來完成所有圖像，我應該怎麼辦的陣列，IM卡請幫幫我，

-(NSMutableArray *)getAllRecipiesByUserId:(RecipeDC *)recipeid 
{ 
    NSMutableArray *dataArray = [[NSMutableArray alloc] init]; 

    NSString *url = [NSString stringWithFormat:@"%@get_all_recipies_by_user_id&user_id=%d",kWSURL,recipeid.user_id]; 


    NSDictionary * returnDict = (NSDictionary *) [self callWebService:url]; 
    if([returnDict objectForKey:@"response"]) 
    { 
     NSDictionary * returnDictSuccess = (NSDictionary *) [returnDict objectForKey:@"response"]; 
     NSArray *returnedDealArray = [returnDictSuccess objectForKey:@"recipies"]; 

     RecipeDC *recpie = [[RecipeDC alloc] init]; 
     for(NSDictionary *dealDict in returnedDealArray) 
     { 

      recpie.recipe_id=[[dealDict objectForKey:@"recipe_id"]intValue ]; 
      recpie.category_id=[[dealDict objectForKey:@"category_id"]intValue ]; 
      recpie.user_id=[[dealDict objectForKey:@"user_id"]intValue ]; 
      recpie.recipe_name = [dealDict objectForKey:@"recipe_name" ]; 
      recpie.recipe_detail = [dealDict objectForKey:@"recipe_detail"]; 


      NSArray *img = [dealDict objectForKey:@"images"]; 

      for(NSDictionary *dealDict in img) 
      { 
       recpie.recipie_img_id=[[dealDict objectForKey:@"recipe_images_id"]intValue]; 
       recpie.recipe_id=[[dealDict objectForKey:@"recipe_id"]intValue]; 
       recpie.recipie_img_url=[dealDict objectForKey:@"image_url"]; 

      } 
      [dataArray addObject:recpie]; 
     NSLog(@"arr count is %u",[dataArray count]); 

     } 
    } 
    return dataArray; 

} 

Answer 1

你做

RecipeDC *recpie = [[RecipeDC alloc] init]; 
    for(NSDictionary *dealDict in returnedDealArray) 
    { 

它應該是

for(NSDictionary *dealDict in returnedDealArray) 
    { 
     RecipeDC *recpie = [[RecipeDC alloc] init]; 

在循環中..

編輯 要獲得圖像的數組可以保存陣列的整部字典，你正在做的

NSArray *img = [dealDict objectForKey:@"images"]; 

     for(NSDictionary *dealDict in img) 
     { 
      recpie.recipie_img_id=[[dealDict objectForKey:@"recipe_images_id"]intValue]; 
      recpie.recipe_id=[[dealDict objectForKey:@"recipe_id"]intValue]; 
      recpie.recipie_img_url=[dealDict objectForKey:@"image_url"]; 

     } 

相反，聲明在RecipeDC類財產NSArray *圖像;只是做以下

recpie.images=[dealDict objectForKey:@"images"];