如何从 Swift 中的 BLE 外设特征写入回调中提取数据？

Posted 2023-03-05

【中文标题】如何从 Swift 中的 BLE 外设特征写入回调中提取数据？

【英文标题】：How to extract data from the BLE Peripheral characteristic write callback in Swift?

【发布时间】：2018-09-06 04:56:42

【问题描述】：

我正在用 Swift 语言开发一个 ios 应用程序。该应用程序充当具有 4 个自定义可写 GATT 特性的 BLE 外围设备。每当客户端编写任何特征时，iOS都会通过以下函数触发回调：

func peripheralManager(_ peripheral: CBPeripheralManager, didReceiveWrite requests: [CBATTRequest`])

.我想知道如何从上面的回调函数中提取特征数据。谁能通过分享示例代码帮助我理解？

【参考方案1】：

斯威夫特 4

func peripheralManager(peripheral: CBPeripheralManager, didReceiveWriteRequests requests: [CBATTRequest])

    for request in requests
    
        if request.characteristic.UUID.isEqual(characteristic.UUID) 
        
            // Set the request's value
            // to the correspondent characteristic
            characteristic.value = request.value
        
  
    peripheralManager.respondToRequest(requests[0], withResult: .Success)

也许对你有用

go through that link for more about BLE