6
Я использовал UISearchController, так как узнал, что UISearchDisplayController устарел. Но теперь у вас есть проблема, интегрированная с SPGooglePlacesAutocomplete раздвоенной библиотекой Chenyuan в GitHub.Как сменить UISearchDisplayController, устаревший в iOS 8.0, на UISearchController
Я получаю панель поиска, когда начинаю печатать, результаты не отображаются. То, что мне также интересно, это то, что UISearchDisplayController устарел, как, пришедшая Chenyuan Demo запускается без предупреждения или выпуска устаревших методов.
Вот мой фрагмент кода, который я попытался преобразовать его демо в UISearchController, пожалуйста, скажите мне, где я ошибаюсь.
MainViewController.h
#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>
#define IS_OS_8_OR_LATER ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
@class SPGooglePlacesAutocompleteQuery;
@interface MainViewController : UIViewController <MKMapViewDelegate, CLLocationManagerDelegate,
UISearchBarDelegate,
UISearchControllerDelegate,
UITableViewDataSource,
UITableViewDelegate>{
NSArray *searchResultPlaces;
SPGooglePlacesAutocompleteQuery *searchQuery;
MKPointAnnotation *selectedPlaceAnnotation;
BOOL shouldBeginEditing;
@private
CGRect _searchTableViewRect;
}
// Search
@property (strong, nonatomic) UISearchDisplayController *searchController;
@property (strong, nonatomic) MKLocalSearch *localSearch;
@property (strong, nonatomic) MKLocalSearchResponse *results;
@end
MainViewController.m фрагмент
// setup Search Controller
-(void) setupSearchController {
// The TableViewController used to display the results of a search
UITableViewController *searchResultsController = [[UITableViewController alloc] initWithStyle:UITableViewStylePlain];
searchResultsController.automaticallyAdjustsScrollViewInsets = NO; // Remove table view insets
searchResultsController.tableView.dataSource = self;
searchResultsController.tableView.delegate = self;
// Initialize our UISearchController
self.searchController = [[UISearchController alloc] initWithSearchResultsController:searchResultsController];
self.searchController.delegate = self;
self.searchController.searchBar.delegate = self;
// Hint for the search
self.searchController.searchBar.placeholder = @"Search your destination address";
}
// Setup Search Bar
-(void) setupSearchBar {
// Set search bar dimension and position
CGRect searchBarFrame = self.searchController.searchBar.frame;
CGRect viewFrame = self.view.frame;
self.searchController.searchBar.frame = CGRectMake(searchBarFrame.origin.x,
searchBarFrame.origin.y,
viewFrame.size.width,
44.0);
// Add SearchController's search bar to our view and bring it to front
[self.view addSubview:self.searchController.searchBar];
[self.view bringSubviewToFront:self.searchController.searchBar];
}
продолжение MainViewController.m
-(void)willPresentSearchController:(UISearchController *)aSearchController {
aSearchController.searchBar.bounds = CGRectInset(aSearchController.searchBar.frame, 0.0f, 0.0f);
// Set the position of the result's table view below the status bar and search bar
// Use of instance variable to do it only once, otherwise it goes down at every search request
if (CGRectIsEmpty(_searchTableViewRect)) {
CGRect tableViewFrame = ((UITableViewController *)aSearchController.searchResultsController).tableView
.frame;
tableViewFrame.origin.y = tableViewFrame.origin.y + 64; //status bar (20) + nav bar (44)
tableViewFrame.size.height = tableViewFrame.size.height;
_searchTableViewRect = tableViewFrame;
}
[((UITableViewController *)aSearchController.searchResultsController).tableView setFrame:_searchTableViewRect];
}
#pragma mark -
#pragma mark UISearchDisplayDelegate
- (void)handleSearchForSearchString:(NSString *)searchString {
searchQuery.location = self.mapView.userLocation.coordinate;
searchQuery.input = searchString;
[searchQuery fetchPlaces:^(NSArray *places, NSError *error) {
if (error) {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Could not fetch Places"
message:error.localizedDescription
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil, nil];
[alert show];
} else {
searchResultPlaces = places;
// [self.searchController.searchResultsTableView reloadData];
[[(UITableViewController *)self.searchController.searchResultsController tableView] reloadData];
}
}];
}
- (BOOL)searchController:(UISearchController *)controller shouldReloadTableForSearchString:(NSString *)searchString {
[self handleSearchForSearchString:searchString];
// Return YES to cause the search result table view to be reloaded.
return YES;
}
- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText {
if (![searchBar isFirstResponder]) {
// User tapped the 'clear' button.
shouldBeginEditing = NO;
[self.searchController setActive:NO];
[self.mapView removeAnnotation:selectedPlaceAnnotation];
}
}
- (BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar {
if (shouldBeginEditing) {
// Animate in the table view.
NSTimeInterval animationDuration = 0.3;
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:animationDuration];
// self.searchController.searchResultsTableView.alpha = 0.75;
[(UITableViewController *)self.searchController.searchResultsController tableView].alpha = 0.75;
[UIView commitAnimations];
[self.searchController.searchBar setShowsCancelButton:YES animated:YES];
}
BOOL boolToReturn = shouldBeginEditing;
shouldBeginEditing = YES;
return boolToReturn;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [searchResultPlaces count];
}
- (SPGooglePlacesAutocompletePlace *)placeAtIndexPath:(NSIndexPath *)indexPath {
return searchResultPlaces[indexPath.row];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *cellIdentifier = @"SPGooglePlacesAutocompleteCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
if (!cell) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
}
cell.textLabel.font = [UIFont fontWithName:@"GillSans" size:16.0];
cell.textLabel.text = [self placeAtIndexPath:indexPath].name;
return cell;
}
#pragma mark -
#pragma mark UITableViewDelegate
- (void)recenterMapToPlacemark:(CLPlacemark *)placemark {
MKCoordinateRegion region;
MKCoordinateSpan span;
span.latitudeDelta = 0.02;
span.longitudeDelta = 0.02;
region.span = span;
region.center = placemark.location.coordinate;
[self.mapView setRegion:region];
}
- (void)addPlacemarkAnnotationToMap:(CLPlacemark *)placemark addressString:(NSString *)address {
[self.mapView removeAnnotation:selectedPlaceAnnotation];
selectedPlaceAnnotation = [[MKPointAnnotation alloc] init];
selectedPlaceAnnotation.coordinate = placemark.location.coordinate;
selectedPlaceAnnotation.title = address;
[self.mapView addAnnotation:selectedPlaceAnnotation];
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
SPGooglePlacesAutocompletePlace *place = [self placeAtIndexPath:indexPath];
[place resolveToPlacemark:^(CLPlacemark *placemark, NSString *addressString, NSError *error) {
if (error) {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Could not map selected Place"
message:error.localizedDescription
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil, nil];
[alert show];
} else if (placemark) {
[self addPlacemarkAnnotationToMap:placemark addressString:addressString];
[self recenterMapToPlacemark:placemark];
[self requestForwardGeoCoding:[self placeAtIndexPath:indexPath].name];
// ref: https://github.com/chenyuan/SPGooglePlacesAutocomplete/issues/10
[self.searchController setActive:NO];
// [self.searchController.searchResultsTableView deselectRowAtIndexPath:indexPath animated:NO];
}
}];
}
@end
