[英]NSArray gives NSZombie error
我試圖將單個數組對象(即多個值的nsdictionary)傳遞回我的主視圖。
基本上,當我設置視圖時,我將一些xml解析為字典數組。 然后,我使用NSdictionary內部的值之一來設置表視圖,該值還用於設置字母滾動條和節標題。 (這是通過我創建的方法完成的)
在該方法的結尾,我調用[self.tableView reloadData]; 每件事都完美地加載,一切都很好顯示。
現在,我正在嘗試設置它,以便在選擇一個單元格時,我檢查cell.textlabel內的值,並將其用作謂詞,以便一旦找到我想要的對應條目后就對我的詞典數組進行檢查將我創建的代表將該字典傳遞到主視圖。
但是我收到一個錯誤,我認為可能是由於我的reloadData ..但不確定。 這就是我的謂詞。
NSPredicate *pred = [NSPredicate predicateWithFormat:@"%K like %@",@"MANUFACTURER",cell.textLabel.text];
NSArray *filter = [myDataArray filteredArrayUsingPredicate:pred]; //error happens here
//check to see if the value is the correct one
NSLog(@"My Filtered array = %@", filter);
//once problem has been found set up the delegate here.
這是我收到的錯誤消息。
2011-10-31 10:43:57.333 code[5812:207] *** -[__NSArrayM filteredArrayUsingPredicate:]: message sent to deallocated instance 0x6874210
如下所示,在NSXMLParser委托中創建myDataArray。
//。H
NSMutableArray *myDataArray;
}
@property (nonatomic, retain) NSMutableArray *myDataArray;
//.m
#pragma mark - Parsing lifecycle
- (void)startTheParsingProcess:(NSData *)parserData
{
//myDataArray = [NSMutableArray arrayWithCapacity:8]; // not even sure if this is needed as its declared later on.
NSXMLParser *parser = [[NSXMLParser alloc] initWithData:parserData]; //parserData passed to NSXMLParser delegate which starts the parsing process
[parser setDelegate:self];
[parser parse]; // starts the event-driven parsing operation.
[parser release];
}
- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
{
if([elementName isEqualToString:@"Row"])
{
manufactureMutableDictionary = [[NSMutableDictionary alloc] initWithDictionary:attributeDict];
}
if([elementName isEqualToString:@"Rows"])
{
myDataArray = [NSMutableArray arrayWithCapacity:8];
}
}
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
{
if([elementName isEqualToString:@"Row"])
{
[myDataArray addObject:manufactureMutableDictionary];
}
[manufactureMutableDictionary release];
manufactureMutableDictionary = nil;
}
任何幫助將不勝感激,您還認為我將以正確的方式傳遞字典的所有值嗎?
您正在使用autorelease
d數組
myDataArray = [NSMutableArray arrayWithCapacity:8];
您已經設置了屬性,因此請使用它們,例如
self.myDataArray = [NSMutableArray arrayWithCapacity:8];
甚至更好
NSMutableArray *tmpMyDataArray = [[NSMutableArray alloc] initWithCapacity:8];
self.myDataArray = tmpMyDataArray;
[tmpMyDataArray release]; tmpMyDataArray = nil;
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