How to display array of JSON values in custom tableView cells - iphone

Question

I want to pass values inside for(NSDictionary *jsonDictionary in myJsonArray) which I get in NSLog to [array addObject:[[SaveList alloc] initWithEmail:email withPhone:phone withDate:date withName:name]];
Code is here
dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
dispatch_async(queue, ^{
NSError *error = nil;
NSURL *url = [NSURL URLWithString:#" http:// Some url "];
NSString *json = [NSString stringWithContentsOfURL:url encoding:NSASCIIStringEncoding error:&error];
NSLog(#"\n\n JSON : %#, \n Error: %#", json, error);
if(!error)
{
NSData *jsonData = [json dataUsingEncoding:NSASCIIStringEncoding];
NSArray *myJsonArray = [NSJSONSerialization JSONObjectWithData:jsonData options:0 error:nil];
// NSDictionary *jsonDictionary = [NSJSONSerialization JSONObjectWithData:jsonData options:kNilOptions error:&error];
for(NSDictionary *jsonDictionary in myJsonArray)
{
NSLog(#"JSON Dictionary = %#", jsonDictionary);
NSString *name = jsonDictionary[#"Name"];
NSString *date = jsonDictionary[#"Date"];
NSString *email = jsonDictionary[#"Email"];
NSString *phone = jsonDictionary[#"Phone"];
NSLog(#"Name = %#", name);
NSLog(#"Date = %#", date);
NSLog(#"Email = %#", email);
NSLog(#"Phone = %#", phone);
}
}
});
//Table implementation
array = [[NSMutableArray alloc]init];
//**Get email, phone, date, name here**
[array addObject:[[SaveList alloc] initWithEmail:email withPhone:phone withDate:date withName:name]];
self.tableView.dataSource = self;
self.tableView.delegate = self;

Answer 1

Why don't you add the objects as you receive them? Since this block of code will be executed asynchronously you could prepare your array, set your tableview and then execute the block where you fill your array and refresh the tableview.
Something like this:
// Prepare your array
array = [NSMutableArray arrayWithCapacity:0];
// Set your tableview's datasource & delegate
self.tableView.dataSource = self;
self.tableView.delegate = self;
// Fetch data asynchronously
dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
dispatch_async(queue, ^{
NSError *error = nil;
NSURL *url = [NSURL URLWithString:#" http:// Some url "];
NSString *json = [NSString stringWithContentsOfURL:url encoding:NSASCIIStringEncoding error:&error];
NSLog(#"\n\n JSON : %#, \n Error: %#", json, error);
if(!error)
{
NSData *jsonData = [json dataUsingEncoding:NSASCIIStringEncoding];
NSArray *myJsonArray = [NSJSONSerialization JSONObjectWithData:jsonData options:0 error:nil];
NSMutableArray *tmp = [NSMutableArray arrayWithCapacity:myJsonArray.count];
for(NSDictionary *jsonDictionary in myJsonArray)
{
NSString *name = jsonDictionary[#"Name"];
NSString *date = jsonDictionary[#"Date"];
NSString *email = jsonDictionary[#"Email"];
NSString *phone = jsonDictionary[#"Phone"];
//**Get email, phone, date, name here**
[tmp addObject:[[SaveList alloc] initWithEmail:email
withPhone:phone
withDate:date
withName:name]];
}
// Reload your tableview
dispatch_sync(dispatch_get_main_queue(), ^{
array = tmp; // Or add them to your datasource array, whatever suits you...
[self.tableView reloadData];
});
}
});

Answer 2

set number of rows
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
[array count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
SavedList *savedList = [array objectAtIndex:indexPath.row];
cell.text = savedList.name;
}
return cell;
}
I hope it will be helpful.

Answer 3

// U need to reload table view data whenever you add new object in it. It does work like a thread.
dispatch_sync(dispatch_get_main_queue(), ^{
array = myJsonArray;
[self.tableView reloadData];