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判断用户是否开启了定位功能

if ([CLLocationManager locationServicesEnabled] &&  
                ([CLLocationManager authorizationStatus] == kCLAuthorizationStatusAuthorized  
                || [CLLocationManager authorizationStatus] == kCLAuthorizationStatusNotDetermined)) {  
                //定位功能可用，开始定位  
                _locationManger = [[CLLocationManager alloc] init];  
                locationManger.delegate = self;  
                [locationManger startUpdatingLocation];  
            }  
            else if ([CLLocationManager authorizationStatus] == kCLAuthorizationStatusDenied){  
        NSlog("定位功能不可用，提示用户或忽略");   
            }

最后更新：2017-04-03 05:40:07

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