Reload table after request was finished - objective-c

Question

I have a table view that use result of fetching data with NSURLSession as a datasource. Here is my NSArray which is responsible about that table.
#property (strong, nonatomic) NSMutableArray *results;
And this is my delegate and datasource method
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [_results count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"cell" forIndexPath:indexPath];
// Configure the cell...
WordResult *word = (WordResult *)[_results objectAtIndex:indexPath.row];
cell.textLabel.text = word.defid;
return cell;
}
In my viewDidLoad, I fetched request from Mashape and try to map the result into my custom class WordResult
Here is my fetch method
#pragma mark - GET Request
- (void)fetchDataFromMashape:(NSURL *)URL {
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:URL];
[request setHTTPMethod:#"GET"];
[request setValue:API_KEY_MASHAPE forHTTPHeaderField:API_MASHAPE_HEADER_1];
[request setValue:API_ACCEPT forHTTPHeaderField:API_MASHAPE_HEADER_2];
NSURLSession *session = [NSURLSession sharedSession];
NSURLSessionDataTask *task = [session dataTaskWithRequest:request
completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
NSDictionary *jsonResult = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];
self.results = [self processResultData:jsonResult];
}];
[task resume];
}
- (NSMutableArray *)processResultData:(NSDictionary *)dict {
NSArray *list = [dict objectForKey:#"list"];
NSMutableArray *tempListOfWord = [[NSMutableArray alloc] init];
if (list) {
for (NSDictionary *item in list) {
WordResult *word = [[WordResult alloc] initWithDictionary:item];
[tempListOfWord addObject:word];
}
}
NSLog(#"Result array of word: %#", tempListOfWord);
return tempListOfWord;
}
My problem is, I dont know where to reload data after my result array was assigned by fetch method and dismissing my progress HUD that I showed on my viewDidLoad.
Here is my viewDidLoad
- (void)viewDidLoad {
[super viewDidLoad];
[SVProgressHUD show];
[self fetchDataFromMashape:_finalURLrequest];
}
So where should I put [SVProgressHUD dismiss] and [self.tableView reloadData] after my request has been finished?
Any help would be appreciated.

Answer 1

Reload your table on main thread
dispatch_async(dispatch_get_main_queue(), ^{
[_tableView reloadData];
});

Answer 2

A great tableView coding pattern is putting reload call in setters of model objects, then you won't miss any data change. For example setter for result in your case:
-(void)setResult:(NSMutableArray*)result{
_result = result;
[self.tableView reloadData]
[SVProgressHUD dismiss]
}

Answer 3

Try this:
You can put [SVProgress dismmis] and also reload your tableview [self.tableView reloadData] after self.results = [self processResultData:jsonResult];

Answer 4

In your viewdidload before calling fetchdata do
self.results=[[NSMutableArray alloc]init];
And then call your [self.tableView reloadData] within the completion block after assigning the array with data
And then call svprogress hud hide method outside the block after [task resume] in the fetch data function