iPhone JSON 解析

发布于 2024-11-07 11:27:50 字数 539 浏览 0 评论 0原文

我是 iPhone 应用程序开发新手。我需要一些帮助...我想解析一些数据（银行名称）并将它们显示到 UITableView 中。我正在使用此代码来解析 JSON 格式的银行名称：

     NSArray *atmDAta = [responseString JSONValue];
for (NSDictionary *dict in atmDAta) {
    NSLog(@"%@", [dict objectForKey:@"Name"]);
    [listOfItems addObject:[dict objectForKey:@"Name"]];
}

但是当我尝试在表中显示它们时，如下所示：

 cell.textLabel.text = [listOfItems objectAtIndex:indexPath.row];
return cell;

这不会在表中显示任何内容，但 NSlog 正在工作并且显示 xcode 日志中的银行名称。请帮忙。

原文

I am new in iPhone app Development.
I need some help... I want to parse some data (Banks Name) and show them into a UITableView. I'm using this code to Parse Banks Name which is in JSON Format :

     NSArray *atmDAta = [responseString JSONValue];
for (NSDictionary *dict in atmDAta) {
    NSLog(@"%@", [dict objectForKey:@"Name"]);
    [listOfItems addObject:[dict objectForKey:@"Name"]];
}

But when i try to show them in the the Table like this :

 cell.textLabel.text = [listOfItems objectAtIndex:indexPath.row];
return cell;

This will show me nothing in the table but NSlog is working and show me the banks name in the xcode log. Please help.

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始终不够爱げ你 2024-11-14 11:27:50

完成 json 解析后调用 [yourtable reloadData];

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烟雨凡馨 2024-11-14 11:27:50

请参考此代码进行 JSON 解析

-(void)getLatestScore
 {
     SBJsonParser *parser = [[SBJsonParser alloc] init];    

     NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://json-cricket.appspot.com/score.json"]];

     // Perform request and get JSON back as a NSData object
     NSData *response = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];

     // Get JSON as a NSString from NSData response
     NSString *str_Json_String = [[NSString alloc] initWithData:response encoding:NSUTF8StringEncoding];

     // parse the JSON response into an object

     NSDictionary *dicCricketScore = [parser objectWithString:str_Json_String error:nil];

     lblDate.text = [dicCricketScore objectForKey:@"date"];
     lblMatch.text = [dicCricketScore objectForKey:@"match"];
     lblBattingTeam.text = [dicCricketScore objectForKey:@"batting_team"];
     lblScore.text = [dicCricketScore objectForKey:@"score"];
     lblSummary.text = [dicCricketScore objectForKey:@"summary"];
 }

从此代码中，您将从 JSON 解析中获得最新的板球得分......

Please refer this code for JSON Parsing

-(void)getLatestScore
 {
     SBJsonParser *parser = [[SBJsonParser alloc] init];    

     NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://json-cricket.appspot.com/score.json"]];

     // Perform request and get JSON back as a NSData object
     NSData *response = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];

     // Get JSON as a NSString from NSData response
     NSString *str_Json_String = [[NSString alloc] initWithData:response encoding:NSUTF8StringEncoding];

     // parse the JSON response into an object

     NSDictionary *dicCricketScore = [parser objectWithString:str_Json_String error:nil];

     lblDate.text = [dicCricketScore objectForKey:@"date"];
     lblMatch.text = [dicCricketScore objectForKey:@"match"];
     lblBattingTeam.text = [dicCricketScore objectForKey:@"batting_team"];
     lblScore.text = [dicCricketScore objectForKey:@"score"];
     lblSummary.text = [dicCricketScore objectForKey:@"summary"];
 }

From this code you will get Latest cricket score from JSON Parsing....

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习惯成性 2024-11-14 11:27:50

@Rocky 尝试一下

在 .h 中声明
NSArray *listOfItems;

@property (nonatomic, copy)NSArray *listOfItems;

并在 .m 中使用它

NSMutableArray *tempArray = [[NSmutableArray alloc]initWithCapacity:[atmDAta count]];
for (NSDictionary *dict in atmDAta) {
    NSLog(@"%@", [dict objectForKey:@"Name"]);
    if (![dict valueForKeyIsNull:@"Name"]) {
        [tempArray addObject:[dict objectForKey:@"Name"]];          
    }
}
self.listOfItems = [NSArray arrayWithArray:tempArray];
[tempArray release];
if([self.listOfItems count] > 0)
[yourTable reloadData];

，我正在使用类别

@implementation NSDictionary (KeyExists)

- (BOOL) keyExists:(NSString *) key {
    return [self valueForKey:key] != nil;
}

- (BOOL) valueForKeyIsNull:(NSString *) key {
    return ![self keyExists:key] || ((NSNull *)[self valueForKey:key] == [NSNull null]);
}
@end

干杯！

@Rocky Give this a try

Declare in .h
NSArray *listOfItems;

@property (nonatomic, copy)NSArray *listOfItems;

and use this in .m

NSMutableArray *tempArray = [[NSmutableArray alloc]initWithCapacity:[atmDAta count]];
for (NSDictionary *dict in atmDAta) {
    NSLog(@"%@", [dict objectForKey:@"Name"]);
    if (![dict valueForKeyIsNull:@"Name"]) {
        [tempArray addObject:[dict objectForKey:@"Name"]];          
    }
}
self.listOfItems = [NSArray arrayWithArray:tempArray];
[tempArray release];
if([self.listOfItems count] > 0)
[yourTable reloadData];

Where I am using a Category

@implementation NSDictionary (KeyExists)

- (BOOL) keyExists:(NSString *) key {
    return [self valueForKey:key] != nil;
}

- (BOOL) valueForKeyIsNull:(NSString *) key {
    return ![self keyExists:key] || ((NSNull *)[self valueForKey:key] == [NSNull null]);
}
@end

Cheers!!!

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