如何从NSMutableArray中提取值？

-(void) readRestaurantFromXml { 
    SGAAppDelegate *app = (SGAAppDelegate *)[[UIApplication sharedApplication] delegate]; 
    NSString *myRequestString = [NSString stringWithFormat:@"%@getXml.aspx",app.SERVER_URL];  
    NSURL *url = [NSURL URLWithString: myRequestString]; 
    CXMLDocument *rssParser = [[[CXMLDocument alloc] initWithContentsOfURL:url options:0 error:nil] autorelease]; 
    resultNodes = [rssParser nodesForXPath:@"//item" error:nil];  
    listOfItems = [[NSMutableArray alloc] init]; 
    for (CXMLElement *resultElement in resultNodes) { 
     NSString *theatre_id = [[resultElement childAtIndex:0] stringValue]; 
     NSString *theatre_name = [[resultElement childAtIndex:1] stringValue]; 
     NSString *restaurant_id = [[resultElement childAtIndex:2] stringValue]; 
     NSString *restaurant_name = [[resultElement childAtIndex:3] stringValue]; 
     NSString *restaurant_desc = [[resultElement childAtIndex:4] stringValue]; 
     NSString *deal_avail = [[resultElement childAtIndex:5] stringValue]; 
     NSString *deal_details = [[resultElement childAtIndex:6] stringValue];  
     Restaurant *workVal = [[Restaurant alloc] initWithRestTitle:restaurant_name restDesc:restaurant_desc theatreId:theatre_id theatreName:theatre_name restId:restaurant_id restDeals:deal_avail restDealDesc:deal_details]; 
     [listOfItems addObject:workVal];    
     [workVal release];  
    } 

} 
-(void)myTask{ 
    NSLog(@"%d",[listOfItems count]); 
}

NSMutableArray listofItems有3个值。所以我怎样才能提取另一种方法中的数组值？如何从NSMutableArray中提取值？

帮助我

来源

2010-08-31 vinay

for(int i=0; i < [listOfItems count]; ++i) { 
    Restaurant* r = [listofItems objectAtIndex:i]; 
}

来源

2010-08-31 05:18:34 skorulis

快速枚举是首选的方法。

for (id object in listOfItems) { 
    //Do something... 
}

如果你想要一个索引单个对象：

id object = [listOfItems objectAtIndex:someIndex];

如果你只是想一个对象（期待阵列有一个单独的对象：

id object = [listOfItems lastObject];

来源

2010-08-31 05:33:15

如何从NSMutableArray中提取值？

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