如何在ios中使用Google maps sdk获取当前位置

大家好，我是Ios初学者，在我的项目中，当用户在路上行走或开车时，我使用Google SDK获取路线

但是我无法获取当前位置，并且无法在我的x代码控制台中显示0.0和0.0（纬度和经度值）。请帮助我获取当前位置

我的代码如下：-

---

获取位置是一个异步过程。因此，您需要“等待”位置被更新——在本例中，通过观察“myLocation”

观察位置 此代码仅在屏幕上显示“地图视图”时有效

// Listen to the myLocation property of GMSMapView.
[_mapView addObserver:self
         forKeyPath:@"myLocation"
            options:NSKeyValueObservingOptionNew
            context:NULL];

// Ask for My Location data after the map has already been added to the UI.
dispatch_async(dispatch_get_main_queue(), ^{
    _mapView.myLocationEnabled = YES;
});

获取位置更新：

---

请检查此堆栈溢出流链接：请修改我的代码并发布，如果您想获取用户的当前位置，您需要使用

CLLocationManager

，您可以签出以获取更多详细信息。请参阅Google Maps IOS SDK演示中的MyLocationViewController

// Listen to the myLocation property of GMSMapView.
[_mapView addObserver:self
         forKeyPath:@"myLocation"
            options:NSKeyValueObservingOptionNew
            context:NULL];

// Ask for My Location data after the map has already been added to the UI.
dispatch_async(dispatch_get_main_queue(), ^{
    _mapView.myLocationEnabled = YES;
});

- (void)observeValueForKeyPath:(NSString *)keyPath
                      ofObject:(id)object
                        change:(NSDictionary *)change
                       context:(void *)context {
  if (!_firstLocationUpdate) {
    // If the first location update has not yet been recieved, then jump to that
    // location.
    _firstLocationUpdate = YES;
    CLLocation *location = [change objectForKey:NSKeyValueChangeNewKey];
    _mapView.camera = [GMSCameraPosition cameraWithTarget:location.coordinate
                                                     zoom:14];
  }
}