如何使用多个CBCharacteristicProperties和Permission初始化CBMutableCharacteristic [英] How to initialize a CBMutableCharacteristic with multiple CBCharacteristicProperties and Permissions

问题描述

我正在创建一个新的CBMutableCharacteristic，用于正在制作的Bluetooth应用中。我从一个教程中获得了一些代码，如下所示：

I'm creating a new CBMutableCharacteristic for use in a Bluetooth app I'm making. I got some code from a tutorial, which looks like this:

_customCharacteristic = [[CBMutableCharacteristic alloc] initWithType：characteristicUUID属性：CBCharacteristicPropertyNotify值：无权限：CBAttributePermissionsReadable];

其中 _customCharacteristic 是我的CBMutableCharacteristic。

where _customCharacteristic is my CBMutableCharacteristic.

但是，我想用其他属性（例如 CBCharacteristicPropertyRead _customCharacteristic c>和 CBCharacteristicPropertyWrite 。权限也是如此：我也想给它 CBAttributePermissionsWriteable 。

However, I want to initialize my _customCharacteristic with other properties, such as CBCharacteristicPropertyRead and CBCharacteristicPropertyWrite. The same is true for the permissions: I want to also give it CBAttributePermissionsWriteable.

据此： http://developer.apple.com/library/ios/#documentation/CoreBluetooth/Reference/CBCharacteristic_Class/translated_content/CBCharacteristic.html#// apple_ref / doc / c_ref / CBCharacteristicProperties

和以下内容： http://developer.apple.com/library/ios/#documentation/CoreBluetooth/Reference/ CBMutableCharacteristic_Class / Reference / CBMutableCharacteristic.html＃// apple_ref / doc / c_ref / CBAttributePermissions

我可以同时具有多个属性和每个特征的权限。但是，我不知道如何以这种方式初始化CBMutableCharacteristic。

I can have both multiple properties and permissions for each characteristic. However, I don't know how to initialize my CBMutableCharacteristic in this way.

推荐答案

它是一个枚举，其不同值可以按位进行OR运算，因此可以一起使用特征属性和权限：

Its an enum, whose different values can be ORed bitwisely, so you can use the characteristic properties and permissions together:

CBMutableCharacteristic *_customCharacteristic = [[CBMutableCharacteristic alloc] initWithType:characteristicUUID properties:CBCharacteristicPropertyNotify+CBCharacteristicPropertyRead
 value:nil permissions:CBAttributePermissionsReadable|CBAttributePermissionsWriteable];

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