Ich habe eine Suchfunktion eingerichtet, die die Antwort einer MKLocalSearchRequest in einem UITableView anzeigt
Ich möchte alle Antworten von der Response jeder Suche bereinigen. Hier ist mein Versuch, dies bisher zu erreichen, inspiriert von diesem Beitrag Multiple Locations on Map (using MKMapItem and CLGeocoder)
Hier ist mein Code.
@interface ViewController ()
@property (nonatomic, strong) UISearchDisplayController *searchController;
@property (nonatomic, strong) UISearchBar *searchBar;
@property (nonatomic, strong) MKLocalSearch *localSearch;
@property (nonatomic, strong) MKLocalSearchResponse *localSearchResponse;
@property (nonatomic, strong) NSArray *dirtyResponseArray;
@property (nonatomic, strong) NSMutableArray *geocodedResultsArray;
@end
@implementation ViewController
-(void)startSearch:(NSString *)searchString
{
if (self.localSearch.searching)
[self.localSearch cancel];
MKLocalSearchRequest *request = [[MKLocalSearchRequest alloc] init];
request.naturalLanguageQuery = searchString;
request.region = MKCoordinateRegionMake(self.currentLocation.coordinate, self.mapView.region.span);
MKLocalSearchCompletionHandler completionHandler = ^(MKLocalSearchResponse *response, NSError *error){
if (error != nil) return;
else {
self.dirtyResponseArray = response.mapItems;
[self operation];
[self.searchController.searchResultsTableView reloadData];
[UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
}
[self.searchDisplayController.searchResultsTableView reloadData];
};
if (self.localSearch != nil)
self.localSearch = nil;
self.localSearch = [[MKLocalSearch alloc] initWithRequest:request];
[self.localSearch startWithCompletionHandler:completionHandler];
}
-(void)operation
{
CLGeocoder *geocoder = [[CLGeocoder alloc]init];
NSOperationQueue *queue = [[NSOperationQueue alloc] init];
NSOperation *finalCompletionOperation = [NSBlockOperation blockOperationWithBlock:^{
[MKMapItem openMapsWithItems:self.geocodedResultsArray launchOptions:nil];
NSLog(@"Local Search Response To use in tableview =================== %@", self.geocodedResultsArray);
}];
NSOperation *previousCompletionHandler = nil;
//Das Problem liegt wahrscheinlich hier. Wie soll ich das MKMapItem im Array verarbeiten?
//NSString *address = [self.dirtyResponseArray valueForKey:@"address"][@"formattedAddress"]; ??
for (NSString *address in self.dirtyResponseArray) {
NSBlockOperation *geocodeRequest = [[NSBlockOperation alloc] init];
if (previousCompletionHandler) [geocodeRequest addDependency:previousCompletionHandler];
NSBlockOperation *geocodeCompletionHandler = [[NSBlockOperation alloc] init];
[finalCompletionOperation addDependency:geocodeCompletionHandler];
[geocodeRequest addExecutionBlock:^{ [geocoder geocodeAddressString:address
completionHandler:^(NSArray *placemarks, NSError *error)
{
[geocodeCompletionHandler addExecutionBlock:^{
if (error) NSLog(@"%@", error);
else if ([placemarks count] > 0)
{
CLPlacemark *geocodedPlacemark = [placemarks objectAtIndex:0];
MKPlacemark *placemark = [[MKPlacemark alloc] initWithCoordinate:geocodedPlacemark.location.coordinate
addressDictionary:geocodedPlacemark.addressDictionary];
MKMapItem *mapItem = [[MKMapItem alloc] initWithPlacemark:placemark];
[mapItem setName:geocodedPlacemark.name];
[self.geocodedResultsArray addObject:mapItem];
}
}];
[queue addOperation:geocodeCompletionHandler];
}];
}];
[queue addOperation:geocodeRequest];
previousCompletionHandler = geocodeCompletionHandler;
}
[queue addOperation:finalCompletionOperation];
}
@end
Ich bin mir nicht sicher, wie ich jedes MKMapItem verarbeiten soll. Im Moment wirft es diesen Fehler
-[MKMapItem length]: unrecognized selector sent to instance 0x7f813c9c6200