iOS 7 ANCS：发现主要 ANCS 服务 UUID

在 iOS7 下，主要的 ANCS 服务是否需要不断进行广告宣传，或者是否需要在模糊设置中启用/使用自定义 CBPeripheralManager（使用 Apple 指定的服务和特征 UUID）实现，以便潜在的通知消费者成功发现它并订阅？

Apple 文档（两个CoreBluetooth 编程指南，以及ANCS规格）令人惊讶的是没有任何相关信息。他们似乎暗示需要自定义实现，但这只是我们的猜测。

给定主要 ANCS 服务 UUID：7905F431-B5CE-4E99-A40F-4B1E122D00D0，执行扫描不会产生任何命中。正如预期的那样，扫描整个 BLE 频谱会命中其他 BLE 设备，但不会命中单个 ANCS 设备。

EDIT 1:

定义自定义 CBPeripheralManager 并手动添加 Apple 指定的 ANCS 服务及其关联特征失败，并出现 NSError：Error Domain=CBErrorDomain Code=8 "The specified UUID is not allowed for this operation."

因此，服务 UUID 似乎是由 Apple 保留的（理应如此），我们无法以这种方式启用它。

任何见解都将不胜感激；我们已就此事与 Apple 联系，并将在收到他们的回复后进行更新。

下面的代码重现了上面提到的 NSError：

// define the ANCS Characteristics
CBUUID *notificationSourceUUID = [CBUUID UUIDWithString:@"9FBF120D-6301-42D9-8C58-25E699A21DBD"];
CBMutableCharacteristic *notificationSource = [[CBMutableCharacteristic alloc] initWithType:notificationSourceUUID properties:CBCharacteristicPropertyNotifyEncryptionRequired value:nil permissions:CBAttributePermissionsReadEncryptionRequired];
CBUUID *controlPointUUID = [CBUUID UUIDWithString:@"69D1D8F3-45E1-49A8-9821-9BBDFDAAD9D9"];
CBMutableCharacteristic *controlPoint = [[CBMutableCharacteristic alloc] initWithType:controlPointUUID properties:CBCharacteristicPropertyWrite value:nil permissions:CBAttributePermissionsWriteEncryptionRequired];
CBUUID *dataSourceUUID = [CBUUID UUIDWithString:@"22EAC6E9-24D6-4BB5-BE44-B36ACE7C7BFB"];
CBMutableCharacteristic *dataSource = [[CBMutableCharacteristic alloc] initWithType:dataSourceUUID properties:CBCharacteristicPropertyNotifyEncryptionRequired value:nil permissions:CBAttributePermissionsReadEncryptionRequired];

// define the ANCS Service
CBUUID *ANCSUUID = [CBUUID UUIDWithString:@"7905F431-B5CE-4E99-A40F-4B1E122D00D0"];
CBMutableService *ANCS = [[CBMutableService alloc] initWithType:ANCSUUID primary:YES];
ANCS.characteristics = @[notificationSource, controlPoint, dataSource];

// define the Advertisement data
NSMutableDictionary *advertisementData = [NSMutableDictionary dictionary];
[advertisementData setValue:@"CUSTOM_ANCS" forKey:CBAdvertisementDataLocalNameKey];
[advertisementData setValue:@"7905F431-B5CE-4E99-A40F-4B1E122D00D0" forKey:CBAdvertisementDataServiceUUIDsKey];

// publish the ANCS service
[self.peripheralManager addService:ANCS];

作为这个问题迟来的答案，现在小牛队已经出局了，这就是我们的想法。

我们最初在两台 iOS 设备（一台作为外围设备，一台作为中央设备）之间实施 ANCS 规范的努力并未成功。一段时间后，苹果公司回复了我们（向他们的传播者致敬）并告诉我们这是不可能的。

通过将 CBPeripheralManager 类和 CBPeripheralManagerDelegate 协议添加到 OSX Mavericks 上嵌入 IOBluetooth.framework 中的 CoreBluetooth.framework（深呼吸），我们现在可以在 OSX 设备上使用 BLE 无线电来实现和通告 ANCS。

因此，此代码片段属于 OSX 上的 CBPeripheralManager：

- (void) advertiseANCS
{
    NSLog(@"%s", __FUNCTION__);

    // define the ANCS Characteristics
    CBUUID *notificationSourceUUID = [CBUUID UUIDWithString:@"9FBF120D-6301-42D9-8C58-25E699A21DBD"];
    CBMutableCharacteristic *notificationSource = [[CBMutableCharacteristic alloc] initWithType:notificationSourceUUID properties:CBCharacteristicPropertyNotifyEncryptionRequired value:nil permissions:CBAttributePermissionsReadEncryptionRequired];
    CBUUID *controlPointUUID = [CBUUID UUIDWithString:@"69D1D8F3-45E1-49A8-9821-9BBDFDAAD9D9"];
    CBMutableCharacteristic *controlPoint = [[CBMutableCharacteristic alloc] initWithType:controlPointUUID properties:CBCharacteristicPropertyWrite value:nil permissions:CBAttributePermissionsWriteEncryptionRequired];
    CBUUID *dataSourceUUID = [CBUUID UUIDWithString:@"22EAC6E9-24D6-4BB5-BE44-B36ACE7C7BFB"];
    CBMutableCharacteristic *dataSource = [[CBMutableCharacteristic alloc] initWithType:dataSourceUUID properties:CBCharacteristicPropertyNotifyEncryptionRequired value:nil permissions:CBAttributePermissionsReadEncryptionRequired];

    // define the ANCS Service
    CBUUID *ANCSUUID = [CBUUID UUIDWithString:@"7905F431-B5CE-4E99-A40F-4B1E122D00D0"];
    CBMutableService *ANCS = [[CBMutableService alloc] initWithType:ANCSUUID primary:YES];
    ANCS.characteristics = @[notificationSource, controlPoint, dataSource];

    // define the Advertisement data
    NSMutableDictionary *advertisementData = [NSMutableDictionary dictionary];
    [advertisementData setValue:@"ANCS" forKey:CBAdvertisementDataLocalNameKey];
    [advertisementData setValue:@[ANCSUUID] forKey:CBAdvertisementDataServiceUUIDsKey];

    // publish the ANCS service
    [self.peripheralManager addService:ANCS];
    [self.peripheralManager startAdvertising:advertisementData];
}

而此代码段属于 iOS 设备上的 CBCentralManager：

- (void) discoverANCS
{
    NSLog(@"%s", __FUNCTION__);

    NSMutableArray *services = [NSMutableArray array];
    [services addObject:@"7905F431-B5CE-4E99-A40F-4B1E122D00D0"];

    NSMutableDictionary *options = [NSMutableDictionary dictionary];
    [options setValue:[NSNumber numberWithBool:NO] forKey:CBCentralManagerScanOptionAllowDuplicatesKey];

    [self.centralManager scanForPeripheralsWithServices:services options:options];
}

iOS 设备现在可以查看并连接到 OSX 无线电，该无线电实现了 Apple 文档中详细介绍的 ANCS 规范。

<CBCentralManager: 0x14e23280> <CBPeripheral: 0x14d27b40 identifier = 7231B80F-874E-DB5F-2AF9-7F376911E2B7, Name = "ANCS", state = disconnected> {
    kCBAdvDataChannel = 39;
    kCBAdvDataIsConnectable = 1;
    kCBAdvDataLocalName = ANCS;
} -60

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