下面的代码用于进行搜索MKLocalSearch并将结果加载到数组中。
这个数组被传递给我的[self.mapView addAnnotations:annotations]方法。一切都很好，直到我尝试viewcontroller通过点击后退按钮（在我的故事板导航栏中）来消除它。
我明白了EXC_BAD_ACCESS(code=1, address=0x4)。如果我注释掉下面的 Show Pins 部分，问题就会消失（当然我现在没有加载我的注释）。
请帮忙！
-(void)issueLocalSearchLookup:(NSString *)searchString usingPlacemarksArray:(NSArray *)placemarks {
self.coords = mapView.userLocation.coordinate;
// Set the size of the region we want to get search results for.
MKCoordinateSpan span = MKCoordinateSpanMake(0.001250, 0.001250);
MKCoordinateRegion region = MKCoordinateRegionMake(mapView.userLocation.coordinate, span);
[self.mapView setRegion:region animated:YES];
// Create the search request
self.localSearchRequest = [[MKLocalSearchRequest alloc] init];
self.localSearchRequest.region = region;
self.localSearchRequest.naturalLanguageQuery = searchString;
// Perform the search request...
self.localSearch = [[MKLocalSearch alloc] initWithRequest:self.localSearchRequest];
[self.localSearch startWithCompletionHandler:^(MKLocalSearchResponse *response, NSError *error) {
if(error){
NSLog(@"localSearch startWithCompletionHandlerFailed! Error: %@", error);
return;
} else {
// We are here because we have data!
for(MKMapItem *mapItem in response.mapItems){
// Show pins...
NSMutableArray *annotations = [NSMutableArray array];
Annotation *annotation = [[Annotation alloc] initWithCoordinate: mapItem.placemark.location.coordinate];
annotation.title = mapItem.name;
annotation.subtitle = mapItem.placemark.addressDictionary[(NSString *)kABPersonAddressStreetKey];
[mapView addAnnotation:annotation];
NSLog(@"Name for result: = %@", mapItem.name);
[self.mapView addAnnotations:annotations];
NSLog(@"Name for result: = %@", mapItem.name);
}
MKCoordinateSpan span = MKCoordinateSpanMake(0.01, 0.01);
MKCoordinateRegion region = MKCoordinateRegionMake(self.coords, span);
[self.mapView setRegion:region animated:YES];
}
}];
}