I implemented search bar in iOS application. I want to get the same (partial result) search hints as Apple Maps application. I tried to find out how apple implemented it but I was not successful on google or here on stackoverflow.
It doesn't matter what is displayed exactly in my UITableView *searchHintTableView. I just don't get correct number of search hints. I am using my application and Apple Maps application on same device and on the same 3G wifi network(3G SIM router).
What everything I tried:
- I tried to specify region with radius.
- To cancel geocode from previous request.
in method:
- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText;
i have following piece of code:
...
CLGeocoder *geocoder = [[CLGeocoder alloc] init];
NSString *location = [NSString stringWithFormat:@"%@", searchText];
// CLRegion *region = [[CLRegion alloc] initCircularRegionWithCenter:coord
// radius:100000000 identifier:@"Hint Region"];
// [geocoder cancelGeocode];
[geocoder geocodeAddressString:location
completionHandler:^(NSArray *placemarks, NSError *error) {
if (error != nil) {
DDLogCVerbose(@"Error %@", [error description]);
[searchHintArray removeAllObjects];
[searchHintTableView reloadData];
return;
}
DDLogCVerbose(@"CLGeocoder >> %@", [placemarks description]);
//to get rid of unwanted results when searchText is inadequate
//even when previous partial results are not removed I don't get that many results as Apple Maps application.
[searchHintArray removeAllObjects];
[placemarks enumerateObjectsUsingBlock:^(CLPlacemark *placemark, NSUInteger idx, BOOL *stop) {
MKPlacemark *mkPlacemark = [[MKPlacemark alloc] initWithPlacemark:placemark];
[searchHintArray addObject:mkPlacemark];
}];
[searchHintTableView reloadData];
}
];
...
input parameters are following
- searchText: Ess
- latitude: 51.46
- longitude: 7.01
Instead of 10 results(address related) from Apple Maps I get 2 at most(NSArray *placemarks).
With complete name of city "Essen" this code returns just 1 result. Apple maps 10 again.
Am I using the right API to display partial results as search hints? If not then how to do it correctly or which API should I use?
EDIT: As I was requested to explain why this is not duplicate I am editing this post. My Question was how to achieve same results as Apple Maps iOS app. I get accurate location when I enter bigger part of address or full address. I just don't get the same number of results when I enter small parts of address.
