ios - 即使在 viewDidLoad 中设置了委托(delegate)，UISearchBar 也无法正常工作

Question

searchBarBookmarkButtonClicked当我点击搜索栏时，方法没有触发。我已经添加了 self.searchBar.deleagate = self;在我的 .h 文件中，我添加了 <UISearchBarDelegate> .

.h 文件:

#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>

@interface ViewController : UIViewController <UISearchBarDelegate,MKMapViewDelegate>

@property (strong, nonatomic) IBOutlet UISearchBar *searchBar;

@property (strong, nonatomic) IBOutlet MKMapView *myMap;

@end

.m 文件:

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
   self.searchBar.delegate = self;
   self.myMap.delegate = self;
}

- (void)searchBarBookmarkButtonClicked:(UISearchBar * )searchBar{
NSLog(@"working");

[self.searchBar resignFirstResponder];
NSLog(@"working");

CLGeocoder *geocoder = [[CLGeocoder alloc] init];

[geocoder geocodeAddressString:self.searchBar.text completionHandler:^(NSArray *placemarks, NSError *error) {
    CLPlacemark *placemark = [placemarks objectAtIndex:0];
    MKCoordinateRegion region;
    CLLocationCoordinate2D newLocation = [placemark.location coordinate];
    region.center = [(CLCircularRegion *)placemark.region center];

    MKPointAnnotation *annotation = [[MKPointAnnotation alloc] init];
    [annotation setCoordinate:newLocation];
    [annotation setTitle:self.searchBar.text];
    [self.myMap addAnnotation:annotation];

    MKMapRect mr = [self.myMap visibleMapRect];
    MKMapPoint pt = MKMapPointForCoordinate([annotation coordinate]);
    mr.origin.x = pt.x - mr.size.width * 0.5;
    mr.origin.y = pt.y -mr.size.width * 0.25;
    [self.myMap setVisibleMapRect:mr animated:YES];
}];

}

@end

Answer 1

确保你有

所有委托(delegate)都已正确设置，这可以在代码中完成，也可以在
在 Storyboard中。

使用正确的委托(delegate)方法来捕获
事件。

如果你认为

- (void)searchBarBookmarkButtonClicked:(UISearchBar * )searchBar

然后尝试使用其他更直接的方法来触发搜索

- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar