Getting '-[__NSArrayM city]: unrecognized selector sent to instance 0x111c03460' error - ios

Question

I'm trying to use Google's geocoding api to get the city name and geolocation. But I'm getting this error and don't know which part I go wrong. Could anyone please help?
Here's my code:
ViewController:
- (void)searchCityGeoLocationByName:(NSString *)name
{
[self.searchResults removeAllObjects];
NSString *requestUrl = [[NSString stringWithFormat:#"https://maps.googleapis.com/maps/api/geocode/json?address=%#&sensor=true&key=%#", name, GOOGLE_GEOCODING_API_KEY] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
[manager GET:requestUrl
parameters:nil
success:^(AFHTTPRequestOperation *operation, id responseObject) {
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)operation.response;
if (httpResponse.statusCode == 200) {
dispatch_async(dispatch_get_main_queue(), ^{
NSMutableArray *results = [NSMutableArray array];
for (id response in [responseObject objectForKey:#"results"]) {
self.search = [[Search alloc] initWithDictionary:response];
[results addObject:self.search];
}
self.searchResults = [NSMutableArray arrayWithCapacity:results.count];
for (int i = 0; i < results.count; i++) {
[self.searchResults addObject:results];
}
[self.searchController.searchResultsTableView reloadData];
});
}
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(#"Error: %#", error);
}];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"SearchCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
Search *search = [self.searchResults objectAtIndex:indexPath.row];
cell.textLabel.text = search.city;
return cell;
}
Search.h:
#interface Search : NSDictionary
- (id)initWithDictionary:(NSDictionary *)otherDictionary;
#property (nonatomic, strong) NSString *city;
#property (nonatomic, strong) NSString *lat;
#property (nonatomic, strong) NSString *lng;
#end
Search.m:
- (id)initWithDictionary:(NSDictionary *)otherDictionary
{
self = [super init];
if (self) {
self.city = [otherDictionary objectForKey:#"formatted_address"];
self.lat = [[otherDictionary valueForKeyPath:#"geometry.location"] objectForKey:#"lat"];
self.lng = [[otherDictionary valueForKeyPath:#"geometry.location"] objectForKey:#"lng"];
}
return self;
}
Thanks for your help.

Answer 1

Change this:
for (int i = 0; i < results.count; i++) {
[self.searchResults addObject:results];
}
to:
for (int i = 0; i < results.count; i++) {
[self.searchResults addObject:results[i]];
}
you adding array to self.searchResults and try to get Search object.

Answer 2

Replace
self.searchResults = [NSMutableArray arrayWithCapacity:results.count];
for (int i = 0; i < results.count; i++) {
[self.searchResults addObject:results];
}
With:
self.searchResults = results;
You can also just remove the results variable and use directly the self.searchResults variable instead.

Answer 3

When you are adding objects to self.searchResults you are adding the NSMutableArray results each time, so then in cellForRowAtIndexPath: when you try to assign search to:
Search *search = [self.searchResults objectAtIndex:indexPath.row];
Instead you are returning an NSMutableArray, so on the next line, when you try to access the search.city the object is an array, rather than a Search object.
You need to look at whether these lines are correct:
for (int i = 0; i < results.count; i++) {
[self.searchResults addObject:results];
}
Are you sure you want to be adding results there? Is an NSMutableArray of NSMutableArrays what you want self.searchResults to contain?
You probably want to replace it with something like this:
[self.searchResults addObject:results[i]];