Question

我创建了一个MAPVIEW来获取用户当前位置的纬度和经度。

-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations

didUpdateLocations委托方法给出一个具有当前位置纬度和经度的数组如何从该阵列获得纬度和经度？

Answer 1

委托方法将返回CLLocation个对象的数组。此数组包含数组末尾的最新位置。

所以，你应该这样收到它：

CLLocation *loc = [locations lastObject];

要访问纬度，请在代码下面写经度。

CLLocationDegrees latitude = loc.coordinate.latitude;
CLLocationDegrees longitude = loc.coordinate.longitude;

Answer 2

在locations数组中，您将找到CLLocation对象。从那里，你可以得到这样的坐标：

CLLocation *location = [locations objectAtIndex:someIndex]; //You can have more than one update so loop through it.
CLLocationDegrees latitude = location.coordinate.latitude;
CLLocationDegrees longitude = location.coordinate.longitude;

Answer 3

您需要实现以下委托方法以获取用户的当前位置。

(void)locationManager:(CLLocationManager *)manager
    didUpdateToLocation:(CLLocation *)newLocation
           fromLocation:(CLLocation *)oldLocation {

}

Answer 4

您需要从位置数组中获取最后一个对象，然后顺便抓住纬度和经度。

CLLocation *location  = [locations lastObject];
    CLLocationDegrees lattitude = location.coordinate.latitude;
    CLLocationDegrees longitude = location.coordinate.longitude;

Answer 5

import urllib.request

urls = ['foo.com/bar.gz', 'foobar.com/barfoo.gz', 'bar.com/foo.gz']

for u in urls:
  urllib.request.urlretrieve(u)

从didupdatelocation委托方法

5 个答案: