How to Parse certain arrays in SBJson - iphone

Question

Hi I have this code here
- (void)viewDidLoad
{
[super viewDidLoad];
jsonURL = [NSURL URLWithString:#"http://oo.mu/json.php"];
jsonData = [[NSString alloc] initWithContentsOfURL:jsonURL usedEncoding:nil error:nil];
self.jsonArray = [jsonData JSONValue];
SBJsonParser *parser = [[SBJsonParser alloc] init];
NSDictionary *jsonObject = [parser objectWithString:jsonData error:NULL];
NSArray *list = [jsonObject objectForKey:#"Dewan's Party"];
for (NSDictionary *lesson in list)
{
// 3 ...that contains a string for the key "stunde"
NSString *content = [lesson objectForKey:#"Street"];
NSLog(#"%#", content);
}
// Do any additional setup after loading the view, typically from a nib.
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [jsonArray count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = (UITableViewCell *) [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
return cell;
}
I'm using this JSon.php file.
{"Steffan's Party":{"Street":"774 Hoodwinked Avenue","City":"Sacramento","State":"California"},"Dewan's Party":{"Street":"2134 Statewide Lane","City":"New York","State":"New York"},"Austin's Party":{"Street":"9090 Gravink Court","City":"Woodland","State":"California"}}
This is a link to the website http://oo.mu/json.php.
What I'm trying to do here is parse each array in it's own UITableView cell. Example below, how can I do this?
Table Cell 1:
Steffan's Party
774 Hoodwinked Ave
Sacramento, California
Table Cell 2:
Dewan's Party
2134 Statewide Lane
New York, New York
How can I do this?

Answer 1

To get all keys and values from your current json do the following
in your viewDidLoad
NSString *yourJson = #"{\"Steffan's Party\":{\"Street\":\"774 Hoodwinked Avenue\",\"City\":\"Sacramento\",\"State\":\"California\"},\"Dewan's Party\":{\"Street\":\"2134 Statewide Lane\",\"City\":\"New York\",\"State\":\"New York\"},\"Austin's Party\":{\"Street\":\"9090 Gravink Court\",\"City\":\"Woodland\",\"State\":\"California\"}}";
SBJSON *json = [[SBJSON alloc] init];
NSDictionary *dic = [json objectWithString:yourJson error:NULL];
//NSMutableArray * keys; is defined in your interface .h file
//NSMutableArray * values; is defined in your interface .h file
keys = [[NSMutableArray alloc] init];
values = [[NSMutableArray alloc] init];
for(NSString *key in dic.keyEnumerator)
{
[keys addObject:key];
[values addObject:[dic objectForKey:key]];
}
now in your cellForRowAtIndexPath would look like this
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = (UITableViewCell *) [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
//Steffan's Party 774 Hoodwinked Ave Sacramento, California
NSString *partyName = [keys objectAtIndex:indexPath.row];
NSDictionary *dicValues = [values objectAtIndex:indexPath.row];
NSString *Street = [dicValues objectForKey:"Street"];
NSString *City = [dicValues objectForKey:"City"];
NSString *State = [dicValues objectForKey:"State"];
//Steffan's Party 774 Hoodwinked Ave Sacramento, California
NSString *fullString = [NSString stringWithFormat:#"%# %# %# %#", partyName, Street, City, State];
return cell;
}

Answer 2

Why are you using SBJsonParser? It's easier using only -JSONValue! Look:
NSDictionary *jsonDict = [jsonData JSONValue];
// you can declare it as ivar
Then, in -tableView:cellForRowAtIndexPath:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = (UITableViewCell *) [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
// that's how you can get key by index
NSString *key = [[jsonDict allKeys] objectAtIndex:indexPath.row];
NSDictionary *party = [jsonDict objectForKey:key];
NSString *street = [party valueForKey:#"Street"];
NSString *city = [party valueForKey:#"City"];
NSString *state = [party valueForKey:#"State"];
cell.textLabel.text = [NSString stringWithFormat:#"%# %# %#, %#", key, street, city, state];
return cell;
}