bme-mobilszoftverek - MeetWorld

downloadUsers-HTTP.m

- (void)downloadUsers
{
    NSURLSessionConfiguration* sessionConfig = [NSURLSessionConfiguration defaultSessionConfiguration];
    NSURLSession* session = [NSURLSession sessionWithConfiguration:sessionConfig delegate:nil delegateQueue:[NSOperationQueue mainQueue]];
    
    NSURL* url = [NSURL URLWithString:
                  @"http://atleast.aut.bme.hu/mobilszoftverek/meetworld/users"];
    
    
    [[session dataTaskWithURL: url
            completionHandler:^(NSData *data, NSURLResponse *response,
                                NSError *error) {
                NSLog(@"Data received:\n%@\n",
                      [[NSString alloc] initWithData: data
                                            encoding: NSUTF8StringEncoding]);
            }] resume];
    
    for (id<UserManagerObserver> observer in self.observers)
    {
        [observer usersDidUpdate];
    }
}

downloadUsers.m

- (void)downloadUsers
{        
    NSDictionary* user1 = @{@"id": @"Sanyi",
         @"status": @"Szétverem a Mac Mini-t"};
    
    NSDictionary* user2 = @{@"id": @"Panni",
          @"status": @"Okosodom"};
    
    [self.users addObject:user1];
    [self.users addObject:user2];
    
    for (id<UserManagerObserver> observer in self.observers)
    {
        [observer usersDidUpdate];
    }
}

handleLongPress.m

- (void)handleLongPress:(UILongPressGestureRecognizer *)recognizer
{
    if (recognizer.state == UIGestureRecognizerStateBegan)
    {
        UIStoryboard* sb =
        [UIStoryboard storyboardWithName:@"MainStoryboard"
                                  bundle:[NSBundle mainBundle]];
        UINavigationController* navigationController =
        [sb instantiateViewControllerWithIdentifier:
         @"UpdateUserNavigationController"];
        
        UpdateUserViewController* updateUserVC = navigationController.viewControllers[0];
        
        CGPoint touchPoint = [recognizer locationInView:self.mapView];
        updateUserVC.coordinate = [self.mapView convertPoint:touchPoint
                              toCoordinateFromView:self.mapView];
        
        [self presentViewController:navigationController animated:YES completion:nil];
    }
}

saveButtonDidClick-HTTP.m

NSURLSessionConfiguration* sessionConfig = [NSURLSessionConfiguration defaultSessionConfiguration];
    NSURLSession* session = [NSURLSession sessionWithConfiguration:sessionConfig delegate:nil delegateQueue:[NSOperationQueue mainQueue]];
    
    NSURL* url = [NSURL URLWithString:
                  @"http://atleast.aut.bme.hu/mobilszoftverek/meetworld/updateuser"];
    NSMutableURLRequest* request = [NSMutableURLRequest requestWithURL:url];
    request.HTTPMethod = @"POST";
    request.HTTPBody = json;
    [request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
    
    NSURLSessionDataTask *postDataTask = [session dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
        
        if (!error)
        {
            NSDictionary* result = [NSJSONSerialization
                                    JSONObjectWithData:data options:0 error:nil];
            
            UIAlertView* alertView = [[UIAlertView alloc] initWithTitle:
                                      @"A szerver válasza" message:result[@"result"]
                                                               delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil];
            [alertView show];
        }
        else
        {
            NSLog(@"Error: %@", [error description]);
        }
        
        [self dismissViewControllerAnimated:YES completion:nil];
        
    }];
    
    [postDataTask resume];

saveButtonDidClick-JSON.m

NSMutableDictionary* user = [NSMutableDictionary dictionary];
user[@"id"] = self.usernameTextField.text;
user[@"status"] = self.statusTextField.text;
user[@"lat"] = [NSString stringWithFormat:@"%f", 
    self.coordinate.latitude];
user[@"lon"] = [NSString stringWithFormat:@"%f", 
    self.coordinate.longitude];
    
NSData* json = [NSJSONSerialization dataWithJSONObject:user options:0 
    error:nil];

tableviewCellForRow.m

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewCell *cell = [tableView
                             dequeueReusableCellWithIdentifier:@"UserStatusCell"];
    
    NSArray* users = [UserManager sharedUserManager].users;
    NSDictionary* user = users[indexPath.row];
    
    cell.textLabel.text = user[@"id"];
    cell.detailTextLabel.text = user[@"status"];
    
    return cell;
}

usersDidUpdate.m

- (void)usersDidUpdate
{
    NSArray* users = [UserManager sharedUserManager].users;
    
    [self.mapView removeAnnotations:self.mapView.annotations];
    
    for (NSDictionary* user in users)
    {
        UserAnnotation* annotation = [[UserAnnotation alloc] init];
        annotation.title = user[@"id"];
        annotation.subtitle = user[@"status"];
        
        CLLocationCoordinate2D coord;
        coord.latitude = [user[@"lat"] doubleValue];
        coord.longitude = [user[@"lon"] doubleValue];
        annotation.coordinate = coord;
        
        [self.mapView addAnnotation:annotation];
    }
}