2012-01-24 45 views
0

我有當我使用他們的第一次4的NSXMLParser objects.they做工精細,但當我不止一次他們沒有更多的使用他們,但不返回錯誤代碼的NSXMLParser解析上重用失敗,但沒有錯誤代碼

初始化

-(void)initParsers 
{ 
    NSURL* file_url = nil; 
     FOR(i,4){  

    file_url = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:[NSString stringWithFormat:@"stack%d",0]ofType:@"xml" inDirectory:@"stackXmls"]]; 
    stackXmlParser[i] = [[NSXMLParser alloc] initWithContentsOfURL:file_url]; 
    stackXmlParser[i].delegate = self; 
    } 

} 

解析

BOOL success = [stackXmlParser[currentStack] parse]; 
if (success) 
{ 
    //Do XML stuff 
    ...   
} else { 
NSLog(@"Error Error Error!!!"); 
    NSError *error = [stackXmlParser[currentStack] parserError]; 
    NSLog(@"Errors with xmlParser: %@ %d", [error localizedDescription], error.code); 
} 

輸出

2012-01-24 16:03:29.542 Cards[5168:207] Error Error Error!!! 
2012-01-24 16:03:29.543 Cards[5168:207] Errors with xmlParser: (null) 0 
+0

它得到之間發佈的任何可能性有多大? (對不起,如果這聽起來很愚蠢) – zrxq

+0

nope全局對象被釋放 - - (void)控制器的dealloc – Yadnesh

+0

好吧,以及如何創建解析器? – zrxq

回答

1

嘗試使用,而不是initWithContentsOfURL

initWithData
NSXMLParser *parser = [[NSXMLParser alloc]initWithContentsOfURL:[NSURL fileURLWithPath:pathToXMLFile]]; 
NSLog(@"initWithContentsOfURL 1: %s", ([parser parse])?"OK":"Fail"); 
NSLog(@"initWithContentsOfURL 2: %s", ([parser parse])?"OK":"Fail"); 
parser = [[NSXMLParser alloc]initWithData:[NSData dataWithContentsOfFile:pathToXMLFile]]; 
NSLog(@"initWithData 1: %s", ([parser parse])?"OK":"Fail"); 
NSLog(@"initWithData 2: %s", ([parser parse])?"OK":"Fail"); 

輸出

2012-01-24 18:37:31.260 CLIXMPLParser[12658:707] initWithContentsOfURL 1: OK 
2012-01-24 18:37:31.280 CLIXMPLParser[12658:707] initWithContentsOfURL 2: Fail 
2012-01-24 18:37:31.292 CLIXMPLParser[12658:707] initWithData 1: OK 
2012-01-24 18:37:31.297 CLIXMPLParser[12658:707] initWithData 2: OK