我正在开发一个 Mac 应用程序。以下是一个最小化的测试用例。似乎 CLLocationManager 没有调用任何委托方法。你看有什么不对吗？
#import <Foundation/Foundation.h>
#import <CoreLocation/CoreLocation.h>
@interface Delegate : NSObject <CLLocationManagerDelegate>
@property (strong, nonatomic) CLLocationManager *locationManager;
@property (nonatomic) BOOL once;
@end
@implementation Delegate;
@synthesize locationManager = _locationManager;
@synthesize once = _once;
- (void)start:(BOOL)once
{
self.once = once;
self.locationManager = [[CLLocationManager alloc] init];
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
self.locationManager.delegate = self;
[self.locationManager startUpdatingLocation];
NSLog(@"Location: %@", self.locationManager.location);
NSLog(@"authorizationStatus: %d", [CLLocationManager authorizationStatus]);
NSLog(@"locationServicesEnabled: %d", [CLLocationManager locationServicesEnabled]);
NSLog(@"significantLocationChangeMonitoringAvailable: %d", [CLLocationManager significantLocationChangeMonitoringAvailable]);
NSLog(@"headingAvailable: %d", [CLLocationManager headingAvailable]);
NSLog(@"regionMonitoringAvailable: %d", [CLLocationManager regionMonitoringAvailable]);
}
- (void)locationManager:(CLLocationManager *)manager
didUpdateToLocation:(CLLocation *)newLocation
fromLocation:(CLLocation *)oldLocation;
{
printf ( "%s\n", [newLocation.description UTF8String]);
if (self.once) exit(0);
}
- (void)locationManager:(CLLocationManager *)manager
didFailWithError:(NSError *)error
{
printf ( "ERROR: %s\n", [[error localizedDescription] UTF8String]);
exit(1);
}
@end
int main(int argc, const char * argv[])
{
@autoreleasepool {
BOOL once = (argc > 1 && strcmp(argv[1], "--once") == 0);
Delegate *delegate = [[Delegate alloc] init];
[delegate performSelectorOnMainThread:@selector(start:) withObject:[NSNumber numberWithBool:once] waitUntilDone:NO];
NSRunLoop *runLoop = [NSRunLoop mainRunLoop];
[runLoop run];
}
return 0;
}
现在输出是：
2013-03-25 20:24:28.342 CoreLocationCLI[75031:303] Location: (null)
2013-03-25 20:24:28.344 CoreLocationCLI[75031:303] authorizationStatus: 0
2013-03-25 20:24:28.345 CoreLocationCLI[75031:303] locationServicesEnabled: 1
2013-03-25 20:24:28.345 CoreLocationCLI[75031:303] significantLocationChangeMonitoringAvailable: 0
2013-03-25 20:24:28.346 CoreLocationCLI[75031:303] headingAvailable: 0
2013-03-25 20:24:28.346 CoreLocationCLI[75031:303] regionMonitoringAvailable: 1
更新：这现在已经实施并且正在工作。在https://github.com/fulldecent/corelocationcli实现位置打印