如何在uitableview上显示json数据 [英] How to display json data on uitableview..

问题描述

JSON数据就是这样..

JSON data is something like that..

{"order_list_1":[
{"name":"@SEVEN (7) OCLOCK BLADE PLATINUM","qty":1,"mrp":1.0},
{"name":"ACT 2 POPCORN BUTTER PEPPER","qty":2,"mrp":2.0},
{"name":"ACT 2 POPCORN CHILLY SURPRISE","qty":3,"mrp":3.0},
{"name":"@MAGGI SOUP HOT N SOUR(1 1)","qty":4,"mrp":4.0},
{"name":"ACT 2 POPCORN GOLDEN SIZZLE","qty":5,"mrp":5.0},
{"name":"AMCHUR AAKHA 1kg","qty":6,"mrp":6.0}]
}

jSon数据显示在控制台上，而不显示在表视图上.
这是我的代码片段...

jSon data is displaying on console but not on tableview..

Here my code snipest...

(void)fetchData{
dispatch_async(bKQueue, ^{
    NSData *data = [NSData dataWithContentsOfURL:latestURL];

    NSLog(@"LatestURL:%@",latestURL);       
    NSError* error=nil;  

    //Creating JSON Object
    NSDictionary *jsonDict= [NSJSONSerialization JSONObjectWithData:data  options:kNilOptions error:&error];

    NSLog(@"JSON = %@", [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]);

    //NSLog(@"dataaaa :%@",jsonDict);

    dispatch_async(dispatch_get_main_queue(), ^{

     //[self fetchData:responseData];
     [self.tableView reloadData];
     //NSLog(@"Value :%@",data);
     });

    NSDictionary *statuses=[jsonDict objectForKey:@"order_list_1"];

    NSLog(@"SomeStatus :%@",statuses);

    if (!statuses)
     {
        NSLog(@"Error in Json :%@",error);
     }
    else
    {
        for(NSDictionary *newValu in statuses)
    {
            NSString *name=[newValu objectForKey:@"name"];
            NSString *qty=[newValu objectForKey:@"qty"];
            NSString *mrp=[newValu objectForKey:@"mrp"];
            NSLog(@"Name :%@    Quantity :%@    MRP :%@ ",name,qty,mrp);
        }
    }
});
}

And this is my Tableview code..

(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{ static NSString *CellIdentifier = @"Cell";

UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {



 cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}



NSError *error=nil;
NSDictionary *jsonDict=[NSJSONSerialization JSONObjectWithData:responseData      options:kNilOptions error:&error];
NSArray *statuses=[jsonDict objectForKey:@"order_list_1"];
for (int i=0; i<jsonDict.count; i++) {
    NSDictionary *newDict=[statuses objectAtIndex:i];
NSLog(@"name :%@",[newDict valueForKey:@"name"]);
}
NSDictionary *text=[statuses objectAtIndex:indexPath.row];
cell.textLabel.text=[text objectForKey:@"name"];
cell.textLabel.text=[text valueForKey:@"qty"];
cell.textLabel.text=[text valueForKey:@"mrp"];


[self.tableView reloadData];
return cell;
}

推荐答案

cellForRowAtIndexPath为表中的每一行调用.通过实现方法指定行数-

cellForRowAtIndexPath is called for each row in the table. And number of rows are specified by implementing the method -

(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section 

因此，在此方法中指定行数，然后调用[self.tableView reloadData];在退出fetchData方法之前，不在cellForRowInIndexPath中.希望对您有所帮助.

So specify number of rows in this method and call [self.tableView reloadData]; before exiting fetchData method, not in cellForRowInIndexPath. I hope this will help.

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