2011-07-04 37 views
0

我正在使用TBXML解析器,但遇到一些困難。解析XML時數組被覆蓋(Objective-C)

我使用以下代碼將產品對象中的數據添加到名爲laarzen的MutableArray。

- (void)loadURL { 
    // Load and parse an xml string 
    Products *product = [[Products alloc] init]; 
    tbxml = [[TBXML alloc] initWithURL:[NSURL URLWithString:@"url..."]]; 

    // If TBXML found a root node, process element and iterate all children 

    // Obtain root element 
    TBXMLElement * root = tbxml.rootXMLElement; 

    // if root element is valid 
    if (root) { 
     // search for the first category element within the root element's children 

     TBXMLElement * Category = [TBXML childElementNamed:@"Category" parentElement:root]; 
     Products *product = [[Products alloc] init]; 
     // if an author element was found 
     while (Category!= nil) { 

      // instantiate an author object 


      // get the name attribute from the author element 
      product.category = [TBXML valueOfAttributeNamed:@"DisplayName" forElement:Category]; 

      // search the author's child elements for a book element 
      TBXMLElement *xmlProduct = [TBXML childElementNamed:@"Product" parentElement:Category]; 
      int i; 
      i=0; 
      // if a book element was found 
      while (xmlProduct != nil) { 
    // extract the title attribute from the book element 
        product.productId = [TBXML valueOfAttributeNamed:@"Id" forElement:xmlProduct]; 

        // extract the title attribute from the book element 
        NSString * price = [TBXML valueOfAttributeNamed:@"Price" forElement:xmlProduct]; 

        // if we found a price 
        if (price != nil) { 
         // obtain the price from the book element 
         product.price = [NSNumber numberWithFloat:[price floatValue]]; 
        } 



        // add the book object to the author's books array and release the resource 
        [laarzen addObject:product]; 

// find the next sibling element named "book" 
       xmlProduct = [TBXML nextSiblingNamed:@"Product" searchFromElement:xmlProduct]; 
      } 

      // add our author object to the authors array and release the resource 


      // find the next sibling element named "author" 
      Category = [TBXML nextSiblingNamed:@"Category" searchFromElement:Category]; 
     } 

    } 


    // release resources 
    [tbxml release]; 
    [product release]; 
} 

由於某種原因,從xml解析出的最後一個節點會覆蓋數組中的所有條目。即如果最後的價格是39,99,則陣列中的價格將是39,99。

在我的viewDidLoad我正在分配laarzen如下:

laarzen = [[NSMutableArray alloc] init]; 

在我的dealloc我又釋放出來。

在頭文件中我做了以下內容:

NSMutableArray *laarzen; 
@property (nonatomic, retain) NSMutableArray *laarzen; 

這可能會是一個記憶的問題,但我只是沒有看到它。

THNX!

回答

5

除非您每次製作新產品對象,否則您只是在數組中存儲大量對同一產品對象的引用 - 因此價格看起來相同,因爲它們都是同一產品。

+0

哇,我覺得愚蠢......可能編碼爲長..在迭代中放置產品的分配,它的工作! Thnx男人! – Jos

1

我沒有看到爲每個產品創建新產品的位置,這聽起來像您只有一個產品實例,並且最終只是一遍又一遍地更新同一個產品。