核心位置委托方法没有在iOS 8.3 Xcode 6.3.1中调用

我试图在Xcode 6.3.1中使用Core Location Framework获取用户的当前位置，我做了以下事情：

1. 目标 – > 常规 – > 链接框架和库下添加核心位置框架

2. 我的ViewController.h文件如下所示，

   #import <UIKit/UIKit.h> #import <CoreLocation/CoreLocation.h> @interface ViewController : UIViewController<CLLocationManagerDelegate> @property (weak, nonatomic) IBOutlet UILabel *lblLatitude; @property (weak, nonatomic) IBOutlet UILabel *lblLongitude; @property (weak, nonatomic) IBOutlet UILabel *lblAddress; @property (strong, nonatomic) CLLocationManager *locationManager; @end 

3. 我的ViewController.m文件如下所示，

    - (void)viewDidLoad { [super viewDidLoad]; self.locationManager = [[CLLocationManager alloc] init]; self.locationManager.delegate = self; if(IS_OS_8_OR_LATER){ NSUInteger code = [CLLocationManager authorizationStatus]; if (code == kCLAuthorizationStatusNotDetermined && ([self.locationManager respondsToSelector:@selector(requestAlwaysAuthorization)] || [self.locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)])) { if([[NSBundle mainBundle] objectForInfoDictionaryKey:@"NSLocationAlwaysUsageDescription"]){ [self.locationManager requestAlwaysAuthorization]; } else if([[NSBundle mainBundle] objectForInfoDictionaryKey:@"NSLocationWhenInUseUsageDescription"]) { [self.locationManager requestWhenInUseAuthorization]; } else { NSLog(@"Info.plist does not contain NSLocationAlwaysUsageDescription or NSLocationWhenInUseUsageDescription"); } } } [self.locationManager startUpdatingLocation]; } #pragma mark - CLLocationManagerDelegate - (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error { NSLog(@"didFailWithError: %@", error); UIAlertView *errorAlert = [[UIAlertView alloc] initWithTitle:@"Error" message:@"Failed to Get Your Location" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil]; [errorAlert show]; } - (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation { NSLog(@"didUpdateToLocation: %@", newLocation); CLLocation *currentLocation = newLocation; if (currentLocation != nil) { lblLatitude.text = [NSString stringWithFormat:@"%.8f", currentLocation.coordinate.longitude]; lblLongitude.text = [NSString stringWithFormat:@"%.8f", currentLocation.coordinate.latitude]; } } @end 

我还在我的info.plist文件中添加了以下按键

• NSLocationWhenInUseUsageDescription
• NSLocationAlwaysUsageDescription

检查了这里 ， 这里 ， 这里 ，以及更多列表中给出的所有内容

那么，有没有人有这个问题的解决scheme，请帮助。 已经失去了我整天寻找这个的思想。

Answer 1

是啊！ 得到的解决scheme，这是我的整个代码和东西添加到使其工作。 特别感谢@MBarton的帮助。 也感谢@ Vinh Nguyen为我的问题投入了宝贵的时间。

在Target-> General-> Linked Frameworks＆Libraries下添加Core Location Framework

在.plist文件中添加

 NSLocationAlwaysUsageDescription 

看屏幕截图：

在我的ViewController.h

 #import <UIKit/UIKit.h> #import <MapKit/MapKit.h> #import <MapKit/MKAnnotation.h> // #define IS_OS_8_OR_LATER ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0) @interface ViewController : UIViewController <MKMapViewDelegate, CLLocationManagerDelegate> { __weak IBOutlet UINavigationItem *navigationItem; } @property (weak, nonatomic) IBOutlet MKMapView *mapView; @property(nonatomic, retain) CLLocationManager *locationManager; @end 

然后在ViewController.m

 #import "ViewController.h" @interface ViewController () @end @implementation ViewController @synthesize mapView; - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view. [self setUpMap]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } -(void)setUpMap { mapView.delegate = self; self.locationManager = [[CLLocationManager alloc] init]; self.locationManager.delegate = self; #ifdef __IPHONE_8_0 // if(IS_OS_8_OR_LATER) { if ([self.locationManager respondsToSelector:@selector(requestAlwaysAuthorization)]) { // Use one or the other, not both. Depending on what you put in info.plist [self.locationManager requestAlwaysAuthorization]; } #endif [self.locationManager startUpdatingLocation]; mapView.showsUserLocation = YES; [mapView setMapType:MKMapTypeStandard]; [mapView setZoomEnabled:YES]; [mapView setScrollEnabled:YES]; } -(void)viewDidAppear:(BOOL)animated { [super viewDidAppear:YES]; self.locationManager.distanceFilter = kCLDistanceFilterNone; self.locationManager.desiredAccuracy = kCLLocationAccuracyBest; [self.locationManager startUpdatingLocation]; NSLog(@"%@", [self deviceLocation]); //View Area MKCoordinateRegion region = { { 0.0, 0.0 }, { 0.0, 0.0 } }; region.center.latitude = self.locationManager.location.coordinate.latitude; region.center.longitude = self.locationManager.location.coordinate.longitude; region.span.longitudeDelta = 0.005f; region.span.longitudeDelta = 0.005f; [mapView setRegion:region animated:YES]; } - (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation { MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(userLocation.coordinate, 800, 800); [self.mapView setRegion:[self.mapView regionThatFits:region] animated:YES]; } - (NSString *)deviceLocation { return [NSString stringWithFormat:@"latitude: %f longitude: %f", self.locationManager.location.coordinate.latitude, self.locationManager.location.coordinate.longitude]; } 

UFFF …！ 自从最近5天以来与许多代码战斗后得到的解决scheme…