didRangeBeacon调用时未找到任何信标

问题描述

我注册了自己的位置管理器来监视和定位一些信标：

  [self.locationManager startMonitoringForRegion：region]; 
 [self.locationManager startRangingBeaconsInRegion：region]; 
  

我的理解是，当找到一个或多个信标时，此委托方法称为：

 -（void）locationManager：（CLLocationManager *）manager didRangeBeacons：（NSArray *）beacons inRegion：（CLBeaconRegion *）region 
  

打开我的信标时确实调用了此委托方法，但是信标数组为空。有没有任何理由为什么我的信标未在该阵列中列出？

下面是显示这种情况的屏幕截图：

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其他注意事项：

• 我使用了传输我的信标信号。稍后，我将尝试使用真正的信标，但是MacBeacon在iOS 7中对我来说运行良好。


• 我尝试将测距延迟到得到 didEnterRegion为止：或 didDetermineState：被调用，但这仍会导致相同的结果。


• 我已请求我的位置管理器： [self.locationManager requestWhenInUseAuthorization]; 。


• 我有一个非常相似的代码，可以在Xcode 5 / iOS中正常编译7 SDK。这是特定的Xcode 6 / iOS 8行为吗？


• 我在我的plist中添加了 NSLocationWhenInUseUsageDescription 键。

解决方案

原来是因为在创建 CLBeaconRegion 。

特别感谢帮助我解决了这个问题。 / p>

I registered my own location manager to monitor and range a few beacons:

[self.locationManager startMonitoringForRegion:region];
[self.locationManager startRangingBeaconsInRegion:region];

My understanding is, when one or more beacons is found this delegate method is called:

- (void)locationManager:(CLLocationManager *)manager didRangeBeacons:(NSArray *)beacons inRegion:(CLBeaconRegion *)region

This delegate method is indeed called when I turned on my beacon, but the beacons array is empty. Is there any reason why my beacon is not listed in that array?

Here's a screenshot to illustrate this situation:

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Other things to note:

• I used MacBeacon to transmit my beacon signal. I will try to use a real beacon later, but MacBeacon has been working fine for me in iOS 7.
• I tried delaying ranging until I get didEnterRegion: or didDetermineState: is called, but that still result in the same thing.
• I have requested location permission from my location manager: [self.locationManager requestWhenInUseAuthorization];.
• I have a very similar code working fine compiled in Xcode 5/iOS 7 SDK. Is this a specific Xcode 6/iOS 8 behaviour?
• I have added NSLocationWhenInUseUsageDescription key in my plist.

解决方案

Turns out this is because I am not using unique identifier when creating CLBeaconRegion.

Special thanks to nayoso for helping me solve this.

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