populate UITableView from json
- by mcgrailm
Hello all working on my building my first iDevice app and I am trying to populate a UITableView with data from json result I can get it to load from plist array no propblem and I can even see my json the problem I'm having is that the UITableView never gets to see the json results please bare with me as this is first time with obj-c or anything like it
in my .h file
@interface TableViewViewController : UIViewController <UITableViewDataSource, UITableViewDelegate> {
NSArray *exercises;
NSMutableData *responseData;
}
in my .m file
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return exercises.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath {
//create a cell
UITableViewCell *cell = [[UITableViewCell alloc]
initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:@"cell"];
// fill it with contnets
cell.textLabel.text = [exercises objectAtIndex:indexPath.row];
// return it
return cell;
}
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
responseData = [[NSMutableData data] retain];
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://url_to_json"]];
[[NSURLConnection alloc] initWithRequest:request delegate:self ];
// load from plist
//NSString *myfile = [[NSBundle mainBundle] pathForResource:@"exercise" ofType:@"plist"];
//exercises = [[NSArray alloc] initWithContentsOfFile:myfile];
[super viewDidLoad];
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
[responseData setLength:0];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
[responseData appendData:data];
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
NSLog(@"Connection failed: %@", [error description]);
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
[connection release];
NSString *responseString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
[responseData release];
NSDictionary *dictionary = [responseString JSONValue];
NSArray *response = [dictionary objectForKey:@"response"];
exercises = [[NSArray alloc] initWithArray:response];
}
