这是我第一次使用位置服务，并且遇到了以下链接器错误：
i386 架构的未定义符号：“_OBJC_CLASS_$_CLLocationManager”
我已经添加了#import <CoreLocation/CoreLocation.h>并在中添加以下行viewDidLoad
CLLocationManager *manager = [[CLLocationManager alloc] init];
manager.delegate = self;
[manager startUpdatingLocation];
[UIApplication sharedApplication].networkActivityIndicatorVisible = YES;
if (![CLLocationManager locationServicesEnabled]){
UIAlertView *servicesDisabledAlert = [[UIAlertView alloc] initWithTitle:@"Location Services Disabled" message:@"You currently have all location services for this device disabled. If you proceed, you will be asked to confirm whether location services should be reenabled." delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
[servicesDisabledAlert show];
[servicesDisabledAlert release];
}
[manager release];
您需要将 CoreLocation 框架添加到您的项目中。
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