我偶然发现了 CoreLocation 框架并实现了iOS Location Awareness Programming Guide 中描述的基本步骤,因为我找不到OSX。
// AppDelegate.h
#import <Cocoa/Cocoa.h>
#import <CoreLocation/CoreLocation.h>
@interface AppDelegate : NSObject<NSApplicationDelegate, CLLocationManagerDelegate> {
CLLocationManager* m_locationManager;
}
@end
实施文件中没有那么多......
// AppDelegate.m
- (void)applicationDidFinishLaunching:(NSNotification*)notification {
m_locationManager = [[CLLocationManager alloc] init];
m_locationManager.delegate = self;
m_locationManager.desiredAccuracy = kCLLocationAccuracyBest;
[m_locationManager startUpdatingLocation];
}
#pragma mark - CLLocationManagerDelegate
- (void)locationManager:(CLLocationManager*)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status {
NSLog(@"%@ %@", self.className, NSStringFromSelector(_cmd));
}
- (void)locationManager:(CLLocationManager*)manager didUpdateToLocation:(CLLocation*)newLocation fromLocation:(CLLocation*)oldLocation {
NSLog(@"%@ %@", self.className, NSStringFromSelector(_cmd));
}
- (void)locationManager:(CLLocationManager*)manager didFailWithError:(NSError*)error {
NSLog(@"%@ %@", self.className, NSStringFromSelector(_cmd));
}
当我启动应用程序时,我被要求授权位置查找。一段时间后再次出现同样的问题 问题:但是,没有调用任何委托方法。
BTW:一篇关于Apple and Google Maps宣布CLGeocoder的有趣文章。
答案 0 :(得分:2)
使用此代理
- (void)locationManager:(CLLocationManager *)manager
didUpdateToLocation:(CLLocation *)newLocation
fromLocation:(CLLocation *)oldLocation;
答案 1 :(得分:0)
我能想到的两件事:
1)
你的应用程序是否可以在MacOS 10.6&amp;新?如果是这样,请确保项目的“部署目标”设置设置为10.6或更高版本。
2)
在“.h
”接口文件中,确保添加<CLLocationManagerDelegate>
以指示此对象符合协议。看起来您正在尝试从应用程序委托中执行此操作,因此声明可能类似于:
@interface AppDelegate : NSObject <NSApplicationDelegate, CLLocationManagerDelegate>