Ios信标监控仅限区域事件触发”；在ipad上；即使我将desiredAccuracy和distanceFilter字段设置为100米

在下面的代码中，我将字段desiredAccuracy和distanceFilter设置为100。但它并没有发挥应有的作用。正如我在标题中提到的，当我在ipad上安装beacon时，didEnterRegion启动，当我返回时，大约15秒后，didExitRegion启动。我错过什么了吗

#import "AppDelegate.h" 
#import <CoreLocation/CoreLocation.h>
#import <CoreBluetooth/CoreBluetooth.h>

@interface AppDelegate() <CLLocationManagerDelegate>
@property (strong, nonatomic) CLLocationManager *locationManager;
@property (assign, nonatomic) BOOL dropEmptyRanges;
@end

@implementation AppDelegate

- (instancetype)init
{
  if (self = [super init]) {
    self.locationManager = [[CLLocationManager alloc] init];

    self.locationManager.delegate = self;
    self.locationManager.pausesLocationUpdatesAutomatically = NO;
    self.locationManager.distanceFilter = 100;
    self.locationManager.desiredAccuracy = kCLLocationAccuracyHundredMeters;

  }

  return self;
}

-(CLBeaconRegion *) createBeaconRegion: (NSString *) identifier
                                  uuid: (NSString *) uuid
                                 major: (NSInteger) major
                                 minor:(NSInteger) minor
{
  NSUUID *beaconUUID = [[NSUUID alloc] initWithUUIDString:uuid];

  unsigned short mj = (unsigned short) major;
  unsigned short mi = (unsigned short) minor;

  CLBeaconRegion *beaconRegion = [[CLBeaconRegion alloc] initWithProximityUUID:beaconUUID major:mj
                                                                         minor:mi
                                                                    identifier:identifier];

  NSLog(@"createBeaconRegion with: identifier - uuid - major - minor");
  beaconRegion.notifyOnEntry = YES;
  beaconRegion.notifyOnExit = YES;
  beaconRegion.notifyEntryStateOnDisplay = YES;

  return beaconRegion;
}

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
  if ([self.locationManager respondsToSelector:@selector(requestAlwaysAuthorization)]) {
    [self.locationManager requestAlwaysAuthorization];
  }

  CLBeaconRegion *beaconRegion = [self createBeaconRegion:@"backgroundRegion" uuid:@"fda50693-a4e2-4fb1-afcf-c6eb07647825" major:10004 minor:5178];

  [self.locationManager startMonitoringForRegion:beaconRegion];

  [self.locationManager startRangingBeaconsInRegion:beaconRegion];

  [self.locationManager startUpdatingLocation];

  if ([UIApplication instancesRespondToSelector:@selector(registerUserNotificationSettings:)]) {
    [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert|UIUserNotificationTypeSound|UIUserNotificationTypeBadge categories:nil]];
  }

  return YES;
}

-(void)locationManager:(CLLocationManager *)manager
        didEnterRegion:(CLBeaconRegion *)region {
  NSLog(@"Beacon did enter region");
  UILocalNotification* localNotification = [[UILocalNotification alloc] init];
  localNotification.fireDate = [NSDate dateWithTimeIntervalSinceNow:3];
  localNotification.alertBody = @"Beacon did enter region";
  localNotification.timeZone = [NSTimeZone defaultTimeZone];
  [[UIApplication sharedApplication] scheduleLocalNotification:localNotification];

}

-(void)locationManager:(CLLocationManager *)manager
         didExitRegion:(CLBeaconRegion *)region {
  NSLog(@"Beacon did exit region");
  UILocalNotification* localNotification = [[UILocalNotification alloc] init];
  localNotification.fireDate = [NSDate dateWithTimeIntervalSinceNow:3];
  localNotification.alertBody = @"Beacon did exit region";
  localNotification.timeZone = [NSTimeZone defaultTimeZone];
  [[UIApplication sharedApplication] scheduleLocalNotification:localNotification];


}

-(void)locationManager:(CLLocationManager*)manager
       didRangeBeacons: (NSArray *) beacons
              inRegion:(CLBeaconRegion *)region{
  NSLog(@"Beacon did range");
}

@end

#导入“AppDelegate.h”
#进口
#进口
@接口AppDelegate（）
@属性（强，非原子）CLLocationManager*locationManager；
@属性（赋值，非原子）BOOL-dropEmptyRange；
@结束
@实现AppDelegate
-（instancetype）初始化
{
if（self=[super init]）{
self.locationManager=[[CLLocationManager alloc]init]；
self.locationManager.delegate=self；
self.locationManager.pausesLocationUpdatesAutomatically=否；
self.locationManager.distanceFilter=100；
self.locationManager.desiredAccuracy=KCallocationAccuracyHundredMeters；
}
回归自我；
}
-（CLBeaconRegion*）createBeaconRegion:（NSString*）标识符
uuid：（NSString*）uuid
少校：（NSInteger）少校
小调：（NSInteger）小调
{
nsuid*beaconUUID=[[nsuid alloc]initWithUUIDString:uuid]；
无符号短距离mj=（无符号短距离）主距离；
无符号短mi=（无符号短）次；
CLBeaconRegion*beaconRegion=[[CLBeaconRegion alloc]INITWITHPROXIMITYUID:beaconUUID major:mj
小调：米
标识符：标识符]；
NSLog（@“createBeaconRegion with:identifier-uuid-major-minor”）；
beaconRegion.notifyOnEntry=是；
beaconRegion.notifyOnExit=是；
beaconRegion.NotifyEntryStateondDisplay=是；
返回信标区域；
}
-（BOOL）应用程序：（UIApplication*）应用程序使用选项完成启动：（NSDictionary*）启动选项
{
if（[self.locationManager respondsToSelector:@selector（requestAlwaysAuthorization）]）{
[self.locationManager请求始终授权]；
}
CLBeaconRegion*beaconRegion=[自行创建的beaconRegion:“背景区域”uuid:“fda50693-a4e2-4fb1-afcf-c6eb07647825”大调：10004小调：5178]；
[self.locationManager startMonitoringForRegion:beaconRegion]；
[self.locationManager startrangingbeaconregion:beaconRegion]；
[self.locationManager startUpdatingLocation]；
if（[UIApplication InstanceRespondtoSelector:@selector（registerUserNotificationSettings:）]））{
[[UIApplication sharedApplication]registerUserNotificationSettings:[UIUserNotificationSettings设置类型：UIUserNotificationTypeAlert | UIUserNotificationTypeSound | UIUserNotificationTypeBadge类别：nil]；
}
返回YES；
}
-（无效）locationManager:（CLLocationManager*）经理
didEnterRegion：（CLBeaconRegion*）区域{
NSLog（@“信标未进入区域”）；
UILocalNotification*localNotification=[[UILocalNotification alloc]init]；
localNotification.fireDate=[NSDate dateWithTimeIntervalSinceNow:3]；
localNotification.alertBody=@“信标未进入区域”；
localNotification.timeZone=[NSTimeZone defaultTimeZone]；
[[UIApplication sharedApplication]scheduleLocalNotification:localNotification]；
}
-（无效）locationManager:（CLLocationManager*）经理
didExitRegion：（CLBeaconRegion*）区域{
NSLog（@“信标未退出区域”）；
UILocalNotification*localNotification=[[UILocalNotification alloc]init]；
localNotification.fireDate=[NSDate dateWithTimeIntervalSinceNow:3]；
localNotification.alertBody=@“信标已退出区域”；
localNotification.timeZone=[NSTimeZone defaultTimeZone]；
[[UIApplication sharedApplication]scheduleLocalNotification:localNotification]；
}
-（无效）locationManager:（CLLocationManager*）经理
DidRange信标：（NSArray*）信标
区域：（CLBeaconRegion*）区域{
NSLog（@“信标did范围”）；
}
@结束

您当前没有对任何信标进行测距。尝试添加以下行：

-(void)locationManager:(CLLocationManager *)manager
        didEnterRegion:(CLBeaconRegion *)region {
  NSLog(@"Beacon did enter region");
  UILocalNotification* localNotification = [[UILocalNotification alloc] init];
  localNotification.fireDate = [NSDate dateWithTimeIntervalSinceNow:3];
  localNotification.alertBody = @"Beacon did enter region";
  localNotification.timeZone = [NSTimeZone defaultTimeZone];
  [[UIApplication sharedApplication] scheduleLocalNotification:localNotification];
  [manager startRangingBeaconsInRegion:region];
}

-(void)locationManager:(CLLocationManager *)manager
         didExitRegion:(CLBeaconRegion *)region {
  NSLog(@"Beacon did exit region");
  UILocalNotification* localNotification = [[UILocalNotification alloc] init];
  localNotification.fireDate = [NSDate dateWithTimeIntervalSinceNow:3];
  localNotification.alertBody = @"Beacon did exit region";
  localNotification.timeZone = [NSTimeZone defaultTimeZone];
  [[UIApplication sharedApplication] scheduleLocalNotification:localNotification];
  [manager stopRangingBeaconsInRegion:region];

}

---

不幸的是，这种技术无法限制信标检测。

字段

locationManager.distanceFilter

和

locationManager.desiredAccuracy

不适用于信标检测。当获取基于GPS/Cell/WiFi定位的位置更新时，这些仅对CoreLocation的回调产生任何影响。文件中说：

此属性仅与标准位置服务结合使用，在监视重大位置更改时不使用

虽然这句话听起来有点含糊不清，但“标准位置服务”的意思是当您调用

startUpdatingLocation

获取这些非信标位置更新时。你可以阅读更多关于这方面的内容。尽管上面的引文没有明确说明，但如果它还说“此属性仅与标准位置服务结合使用，并且在监控重大位置变化或监控信标区域时不使用，则更清楚。”

---

如果要根据距离限制信标检测，则不能使用监视API。您必须对信标进行测距，每秒钟进行一次距离估计，并且只有当您发现估计距离小于所需阈值时才触发事件。

感谢Allan的回复，在didFinishLaunchingWithOptions方法中，我称之为StartTransgingBeaconsisnRegion和startMonitoringForRegion方法。didEnterRegion和DidextRegion现在已经成功运行。我希望我的应用程序能扫描更大范围内的信标信号。现在，didEnterRegion离ipad太近了。当我稍微改变一下ipad的位置时，didExitRegion事件就会触发。谢谢你的明确解释。我将尝试在区域进入后通过测距信标来实现距离检测。