Ios7 核心蓝牙特性通知不工作

我正在尝试编写一个接收通知的BTLE监控应用程序。我已经使用核心蓝牙（在iOS 7.1上）构建了中央应用程序和模拟外围应用程序。My central可以很好地连接到外围设备，外围设备宣传具有2

CBCharacteristicPropertyNotify

特征的服务。但一旦中央发现了这些特征（为了清晰起见，删除了不必要的代码），就会发生这样的情况

PD=CBPeripheralDelegate位于中央

PMD=cbperipheraldmanager在外围设备中释放

已调用PD回调

- (void)peripheral:(CBPeripheral *)peripheral didDiscoverCharacteristicsForService:(CBService *)service error:(NSError *)error
{
    for (CBCharacteristic *characteristic in service.characteristics)
    {
        [peripheral setNotifyValue:YES forCharacteristic:characteristic];
    }
}

为2个特征调用了两次PMD回调

- (void)peripheralManager:(CBPeripheralManager *)peripheral central:(CBCentral *)central didSubscribeToCharacteristic:(CBCharacteristic *)characteristic
{
    if ([characteristic.UUID isEqual:[CBUUID UUIDWithString:FILTER_GENUINE_CHARACTERISTIC_UUID]])
    {
        BOOL genuineSent = [self.peripheralManager updateValue:genuineValue
                                                     forCharacteristic:self.filterGenuineCharacteristic
                                                  onSubscribedCentrals:nil];
    }
    else if ([characteristic.UUID isEqual:[CBUUID UUIDWithString:FILTER_LOADING_CHARACTERISTIC_UUID]])
    {
        BOOL loadingSent = [self.peripheralManager updateValue:loadingValue
                                                     forCharacteristic:self.filterLoadingCharacteristic
                                                  onSubscribedCentrals:nil];
    }
}

- (void)peripheral:(CBPeripheral *)peripheral didUpdateNotificationStateForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error

注意：第一次调用此方法时，SubscribedCentrals:上的

updateValue:forCharacteristic:onSubscribedCentrals:

返回值为

YES

。第二次返回总是

NO

为2个特征调用了两次PD回调

- (void)peripheralManager:(CBPeripheralManager *)peripheral central:(CBCentral *)central didSubscribeToCharacteristic:(CBCharacteristic *)characteristic
{
    if ([characteristic.UUID isEqual:[CBUUID UUIDWithString:FILTER_GENUINE_CHARACTERISTIC_UUID]])
    {
        BOOL genuineSent = [self.peripheralManager updateValue:genuineValue
                                                     forCharacteristic:self.filterGenuineCharacteristic
                                                  onSubscribedCentrals:nil];
    }
    else if ([characteristic.UUID isEqual:[CBUUID UUIDWithString:FILTER_LOADING_CHARACTERISTIC_UUID]])
    {
        BOOL loadingSent = [self.peripheralManager updateValue:loadingValue
                                                     forCharacteristic:self.filterLoadingCharacteristic
                                                  onSubscribedCentrals:nil];
    }
}

- (void)peripheral:(CBPeripheral *)peripheral didUpdateNotificationStateForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error

注意：

特征。isNotifying

始终为

YES

但就是这样，不会调用其他回调方法

PMD callback

外围设备管理器ReadyToUpdatesSubscribers:

从不为返回的

否

调用的

updateValue:forCharacteristic:onSubscribedCentrals:

调用

- (void)peripheralManagerIsReadyToUpdateSubscribers:(CBPeripheralManager *)peripheral

PD回调

peripal:didUpdateValueForCharacteristic:error:

从不为订阅的Central:调用返回的

YES

- (void)peripheral:(CBPeripheral *)peripheral didUpdateValueForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error

我一直在iPad Air和iPhone 5s上测试这些应用程序，这两款应用程序都运行iOS 7.1

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知道为什么从不调用通知吗？

我在iPhone 6的iOS 8.1.3上也有同样的问题。我打电话给updateValue获取已通知的订阅特征。但是，在第一次调用updateValue失败后，没有ReadyToUpdateSubscribers回调。