iphone - 将nsnumber或nsstring放入initWithLatitude中:

我也很愚蠢，我想将NSString或NSNumber放入initWithLatitude的CLLocation中。如果有人可以帮助，那就太好了。

继承人的代码

CLLocation *location1 = [[CLLocation alloc] initWithLatitude:53.778702 longitude:-0.271887];
CLLocation *location2 = [[CLLocation alloc] initWithLatitude:53.683267 longitude:-0.011330];
label.text = [NSString stringWithFormat:@"Distance in miles: %4.1f", [location1 distanceFromLocation:location2]/1609.344];
[location1 release];

我正在尝试用[[CLLocation alloc] initWithLatitude:53.778702 longitude:-0.271887]替换[[CLLocation alloc] initWithLatitude:lat longitude:lon]

最佳答案

CLLocationDegrees是double，因此您可以

[[CLLocation alloc] initWithLatitude:[someNSNumber doubleValue] longitude:[someNSString doubleValue]];

关于iphone - 将nsnumber或nsstring放入initWithLatitude中:，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/11837051/