如何可以打印陣列JSON值插入的UITableView在iphone

Question

JSON格式代碼看起來是這樣的：

array = [values valueForKey:@"rates"];

：

{ 
"rates": { 
      "amc": "201", 
      "hyd": "500.50", 
      "guj": "200.10", 
      "afgd": "400" 
     } 
}                 

解析JSON值以上代碼陣列返回後哪個陣列返回

{ 
      amc = "201"; 
      hyd = "500.50"; 
      guj = "200.10"; 
      afgd = "400"; 
      ...........etc 



} 

但我想打印在UITableView看看amc：201

我該怎麼做？

- (void)connectionDidFinishLoading:(NSURLConnection *)connection 
{ 
    [connection release]; 

    NSString *responseString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding]; 
    self.responseData = nil; 

    values = [responseString JSONValue]; 
    array = [[NSMutableArray alloc] init]; 
    NSMutableArray *arrTitle = [[NSMutableArray alloc] init]; 
    NSMutableArray *arrValues = [[NSMutableArray alloc] init]; 
    array =[values valueForKey:@"rates"]; 

    NSLog(@"array values:--> %@",array); 
// NSLog(@"values:--> %@",values); 
// NSLog(@"Particular values:--> %@",[[values valueForKey:@"rates"] valueForKey:@"AED"]); 

    tempDict1 = (NSMutableDictionary *)array;    
    NSArray *arr;// =[[NSArray alloc]init]; 
    arr = [[tempDict1 valueForKey:@"rates"] componentsSeparatedByString:@";"]; 
    NSLog(@"arr-->%@",arr); 
    NSString *subStar = @"="; 
    [arrTitle removeAllObjects]; 
    [arrValues removeAllObjects]; 

    for (int i=0; i<[arr count]-1; i++) 
    { 
     [arrTitle addObject:[[arr objectAtIndex:i] substringToIndex:NSMaxRange([[arr objectAtIndex:i] rangeOfString:subStar])-1]]; 
     [arrValues addObject:[[arr objectAtIndex:i] substringFromIndex:NSMaxRange([[arr objectAtIndex:i] rangeOfString:subStar])]]; 
     NSLog(@"arrTitle is:--> %@",arrTitle); 
    } 

    tempDict1 = (NSMutableDictionary*)[array objectAtIndex:0]; 
    array = [values valueForKey:@"rates"]; 
    NSLog(@"tempDict--%@",[tempDict1 objectForKey:@"AED"]); 

    [array retain]; 
    [tbl_withData reloadData]; 
} 

Answer 1

試試這個： -

NSDictionary *dict =[values valueForKey:@"rates"]; 
NSString *str=[dict valueForKey:@"amc"]; 

You need to do this:- 
NSString *responseString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding]; 
    self.responseData = nil; 

    values = [responseString JSONValue]; 
    NSMutableArray *arrTitle = [[NSMutableArray alloc] init]; 
    NSMutableArray *arrValues = [[NSMutableArray alloc] init]; 
    NSDictionary *dict =[values valueForKey:@"rates"]; 
NSString *str=[dict valueForKey:@"amc"]; 

休息，你可以根據你的要求去做。

Answer 2

嘗試：

NSMutableArray * array2=[[NSMutableArray alloc]init];  
[array addObject: [[array objectAtIndex:0] objectForKey:@"amc"]];  
[array addObject: [[array objectAtIndex:0] objectForKey:@"hyd"]];  
[array addObject: [[array objectAtIndex:0] objectForKey:@"guj"]];  
[array addObject: [[array objectAtIndex:0] objectForKey:@"afgd"]];  

在你的表格單元格現在把數組2的值。

像：

cell.text=[array2 objectAtIndex:indexPath.row];  

Answer 3

返回類型爲[值valueForKey：@ 「費率」]是一個字典不值數組。現在

NSDictionary *dict = [values valueForKey:@"rates"]; 

你可以參考使用objectForKey

否則，如果你想在陣列存儲得到字典中值。

NSMutableArray *array = [NSMutableArray array]; 
for (NSString *key in [dict allKeys]) 
{ 
    array = [dict objectForKey:key]; 
} 

因此，最後數組包含字典中的所有值。

// returns no of rows 
-(NSInteger) tableView: (UITableView *) tableView numberOfRowsInSection: (NSInteger) section 
{ 
    return [array count]; 
} 

// contents of row will be  
-(UITableViewCell*) tableView: (UITableView *) tableView cellForRowAtIndexPath: (NSIndexPath *) indexPath  
{ 
    static NSString *CellIdentifier = @"test"; 

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; 
    if (cell == nil) 
    { 
     cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; 
    } 

    // Configure the cell... 
    NSString *value = [self. array objectAtIndex:indexPath.row]; 

    cell.textLabel.text = value; 

    return cell; 
}