Question

目前在申请“餐馆”类型的mklocalsearch请求时使用苹果的iOS地图视图（显示附近的餐馆）所有我得到的是美国的餐馆在设备上运行而不是在当前位置附近的餐馆（黎巴嫩）。

这是我的视图代码确实在美国的日志餐馆加载结果打印

_mapview.showsUserLocation=YES;
_mapview.delegate=self;
MKLocalSearchRequest *request =
[[MKLocalSearchRequest alloc] init];
request.naturalLanguageQuery=@"Restaurant";
request.region = _mapview.region;

MKLocalSearch *search =
[[MKLocalSearch alloc]initWithRequest:request];

[search startWithCompletionHandler:^(MKLocalSearchResponse
                                     *response, NSError *error) {
    if (response.mapItems.count == 0)
        NSLog(@"No Matches");
    else
        for (MKMapItem *item in response.mapItems)
        {
            NSLog(@"name = %@", item.name);
            NSLog(@"Phone = %@", item.phoneNumber);
        }
}];

Answer 1

想通了！我们必须手动设置地图视图的区域，否则默认情况下该区域将在美国。此代码已完成，将显示您所在位置的附近餐馆

[super viewDidLoad];
[self.searchDisplayController setDelegate:self];
[self.ibSearchBar setDelegate:self];

self.ibMapView.delegate=self;

// Zoom the map to current location.
[self.ibMapView setShowsUserLocation:YES];
[self.ibMapView setUserInteractionEnabled:YES];
[self.ibMapView setUserTrackingMode:MKUserTrackingModeFollow];



CLLocationManager *locationManager = [[CLLocationManager alloc] init];
locationManager.delegate=self;

[locationManager startUpdatingLocation];
[self.ibMapView setRegion:MKCoordinateRegionMake(locationManager.location.coordinate, MKCoordinateSpanMake(0.2, 0.2))];

MKLocalSearchRequest *request = [[MKLocalSearchRequest alloc] init];
request.region = self.ibMapView.region;
request.naturalLanguageQuery = @"restaurant";

[UIApplication sharedApplication].networkActivityIndicatorVisible = YES;
localSearch = [[MKLocalSearch alloc] initWithRequest:request];

[localSearch startWithCompletionHandler:^(MKLocalSearchResponse *response, NSError *error){

    [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;

    results = response;
    if (response.mapItems.count == 0)
        NSLog(@"No Matches");
    else
        for (MKMapItem *item in response.mapItems)
        {
            NSLog(@"name = %@", item.name);
            NSLog(@"Phone = %@", item.phoneNumber);

            [_matchingItems addObject:item];
            MKPointAnnotation *annotation =
            [[MKPointAnnotation alloc]init];
            annotation.coordinate = item.placemark.coordinate;
            annotation.title = item.name;
            [self.ibMapView addAnnotation:annotation];
        }
}];

}

MKLocal搜索附近的餐馆，显示美国而非当前位置

1 个答案: