iOS 에서 아 날로 그 포 지 셔 닝 기능 을 실현 하 는 예시 코드

// MockLocationProxy.h
#import <CoreLocation/CoreLocation.h>

@interface MockLocationProxy : NSProxy

@property (nonatomic, weak, readonly, nullable) id <CLLocationManagerDelegate> target;

- (instancetype)initWithTarget:(id <CLLocationManagerDelegate>)target;

@end

// MockLocationProxy.m
#import "MockLocationProxy.h"

@implementation MockLocationProxy

- (instancetype)initWithTarget:(id<CLLocationManagerDelegate>)target {
  _target = target;
  return self;
}

@end

// MockLocationProxy.m
@implementation MockLocationProxy

- (instancetype)initWithTarget:(id<CLLocationManagerDelegate>)target {
  _target = target;
  return self;
}

- (BOOL)respondsToSelector:(SEL)aSelector {
  if (aSelector == @selector(locationManager:didUpdateLocations:)) {
    return YES;
  }
  return [self.target respondsToSelector:aSelector];
}

- (void)forwardInvocation:(NSInvocation *)invocation {
  SEL sel = invocation.selector;
  if ([self.target respondsToSelector:sel]) {
    [invocation invokeWithTarget:self.target];
  }
}

- (NSMethodSignature *)methodSignatureForSelector:(SEL)sel {
  return [self.target methodSignatureForSelector:sel];
}

#pragma mark - CLLocationManagerDelegate
- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray<CLLocation *> *)locations {
  if ([self.target respondsToSelector:_cmd]) {
    //       
    CLLocation *mockLocation = [[CLLocation alloc] initWithLatitude:39.908722 longitude:116.397499];
    locations = @[mockLocation];
    [self.target locationManager:manager didUpdateLocations:locations];
  }
}
@end