我需要使用 CoreLocation 找到我当前的位置,我尝试了多种方法,但到目前为止我的 CLLocationManager 只返回了 0.. (0.000.00.000).
I need to find my current location with CoreLocation, I tried multiple methods but so far my CLLocationManager has only returned 0's.. (0.000.00.000).
这是我的代码(更新后可以使用):
进口:
#import <CoreLocation/CoreLocation.h>声明:
IBOutlet CLLocationManager *locationManager; IBOutlet UILabel *latLabel; IBOutlet UILabel *longLabel;功能:
- (void)getLocation { //Called when needed latLabel.text = [NSString stringWithFormat:@"%f", locationManager.location.coordinate.latitude]; longLabel.text = [NSString stringWithFormat:@"%f", locationManager.location.coordinate.longitude]; } - (void)viewDidLoad { locationManager = [[CLLocationManager alloc] init]; locationManager.distanceFilter = kCLDistanceFilterNone; // whenever we move locationManager.desiredAccuracy = kCLLocationAccuracyHundredMeters; // 100 m [locationManager startUpdatingLocation]; } 推荐答案您可以使用 CoreLocation 找到您的位置,如下所示:
You can find your location using CoreLocation like this:
import CoreLocation:
#import <CoreLocation/CoreLocation.h>声明CLLocationManager:
CLLocationManager *locationManager;初始化 viewDidLoad 中的 locationManager 并创建一个函数,该函数可以将当前位置作为 NSString 返回:
Initialize the locationManager in viewDidLoad and create a function that can return the current location as an NSString:
- (NSString *)deviceLocation { return [NSString stringWithFormat:@"latitude: %f longitude: %f", locationManager.location.coordinate.latitude, locationManager.location.coordinate.longitude]; } - (void)viewDidLoad { locationManager = [[CLLocationManager alloc] init]; locationManager.distanceFilter = kCLDistanceFilterNone; // whenever we move locationManager.desiredAccuracy = kCLLocationAccuracyHundredMeters; // 100 m [locationManager startUpdatingLocation]; }并且调用 deviceLocation 函数将按预期返回位置:
And calling the deviceLocation function will return the location as expected:
NSLog(@"%@", [self deviceLocation]);这只是一个例子.在用户没有准备好之前初始化 CLLocationManager 不是一个好主意.并且,当然,locationManager.location.coordinate可以在CLLocationManager之后随意获取latitude和longitude已初始化.
This is just an example. Initializing CLLocationManager without the user being ready for it isn't a good idea. And, of course, locationManager.location.coordinate can be used to get latitude and longitude at will after CLLocationManager has been initialized.
不要忘记在 Build Phases 选项卡下的项目设置中添加 CoreLocation.framework(Targets->Build Phases->Link Binary).
Don't forget to add the CoreLocation.framework in your project settings under the Build Phases tab (Targets->Build Phases->Link Binary).
更多推荐
如何使用 CoreLocation 查找您当前的位置
发布评论