JSON to UITableView IOS Objective-C [closed] - ios

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I'm trying to get JSON to UITableView from a URL API.
Below is my code for my view controller.
I'm quite new to Objective-C.
Just wanting to know what I should use to make this happen. This is my code below and I keep getting errors.
Any help would be greatly appreciated.
Please remember I'm really new to this so I will need a detailed explanation and working through.
ViewController.h
#import "ViewController.h"
#interface ViewController ()
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
NSError *error;
NSString *url_string = [NSString stringWithFormat: #"http://django-env2.55jfup33kw.us-west-2.elasticbeanstalk.com/api/Musician/?format=json"];
NSData *data = [NSData dataWithContentsOfURL: [NSURL URLWithString:url_string]];
NSMutableArray *json = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
//NSLog(#"json: %#", json);
// NSString *mystring = json[1];
// NSLog(#"json: %#", mystring);
NSMutableArray *myMutableArray = [json mutableCopy];
NSArray *myArray = [myMutableArray copy];
NSLog(#"json: %#", myArray);
self.greekLetters = #[#"test", #"test2"];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return myArray.count;
}
// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:CellIdentifier] autorelease];
//cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
}
NSDictionary *cellDict = [myArray objectAtIndex:indexPath.row];
cell.textLabel.text = [cellDict objectForKey:#"address_line1"];
cell.detailTextLabel.text = [cellDict objectForKey:#"zipcode"];
return cell;
}
#end

Answer 1

Step-1
#interface ViewController ()
{
// create the array
NSMutableArray *myMutableArray;
}
#end
Step-2
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
NSError *error;
NSString *url_string = [NSString stringWithFormat: #"http://django-env2.55jfup33kw.us-west-2.elasticbeanstalk.com/api/Musician/?format=json"];
NSData *data = [NSData dataWithContentsOfURL: [NSURL URLWithString:url_string]];
NSMutableArray *json = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
// allocate the memory of your array
myMutableArray = [NSMutableArray array];
// check your dictionary contains values or not
if (json)
{
// add the data to your array
[myMutableArray addObject:json];
[yourTableViewname reLoaddata]; // refresh the table
}
}
your JSON output is
step-3
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return myMutableArray.count;
}
// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:CellIdentifier] autorelease];
//cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
}
NSDictionary *cellDict = [myMutableArray objectAtIndex:indexPath.row];
cell.textLabel.text = [cellDict objectForKey:#"first_name"];
cell.detailTextLabel.text = [cellDict objectForKey:#"last_name"];
return cell;
}