我制作了一个位置应用程序。但核心位置不起作用。我在我的 iPhone 上测试了其他 iPhone 应用程序。
像google earth，一个导航软件。其他应用程序也不起作用。
为什么不更新位置？
为什么 'locationManager:didUpdateToLocation:fromLocation:' 消息只调用了 2 次？
也许……我的 iPhone 坏了？还是 iOS 6 CoreLocation 框架有一些错误？
定位服务 - 在 iPhone 设置上开启
信息列表
- armv7
- 加速度计
- 位置服务
- 全球定位系统
- 麦克风
- 磁力计
代码示例：
- (CLLocationManager *)setupLocationManager
{
if ([CLLocationManager locationServicesEnabled] && [CLLocationManager headingAvailable]) {
CLLocationManager *locationManager = [[CLLocationManager alloc] init];
locationManager.delegate = self;
locationManager.desiredAccuracy = kCLLocationAccuracyBestForNavigation;
locationManager.distanceFilter = kCLDistanceFilterNone;
locationManager.headingFilter = kCLHeadingFilterNone;
[locationManager startUpdatingLocation];
[locationManager startUpdatingHeading];
return locationManager;
}
return nil;
}
- (CLLocationManager *)locationManager
{
switch([CLLocationManager authorizationStatus])
{
case kCLAuthorizationStatusAuthorized:
_deltaTimeLocationReceived = 0.0;
if (_locationManager == nil)
_locationManager = [self setupLocationManager];
return _locationManager;
case kCLAuthorizationStatusDenied:
case kCLAuthorizationStatusRestricted:
if (_locationManager)
_locationManager = nil;
return _locationManager;
case kCLAuthorizationStatusNotDetermined:
_deltaTimeLocationReceived = 0.0;
if (_locationManager == nil)
_locationManager = [self setupLocationManager];
return nil;
}
return nil;
}
- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation
{
NSLog(@"%@ %@", NSStringFromSelector(_cmd), newLocation.description);
if (self.locationManager) _locationSignal++;
}
- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error
{
NSLog(@"%@ %@", NSStringFromSelector(_cmd), error.description);
}