我在外围管理器委托中有以下代码
func peripheralManager(_ peripheral: CBPeripheralManager, didReceiveWrite requests: [CBATTRequest]) {
print ("received write request")
for request in requests {
if request.characteristic.uuid.isEqual(self.primaChar.uuid) {
// extract data from write request
// TODO: validate data
let str = String(data: request.value!, encoding: .utf8)!
print ("received:", str)
peripheralManager.respond(to: request, withResult: .success)
} else {
print ("Unknown write request")
}
}
}
响应电话后
peripheralManager.respond(to: request, withResult: .success)
在中心侧不调用 didWrite
func peripheral(_ peripheral: CBPeripheral, didWriteValueFor descriptor: CBDescriptor, error: Error?) {
#if DEBUG
CLog.debug ("Did write value for \(descriptor.characteristic)")
#endif
}
我需要发起多个写请求,但需要知道上一个写是否成功,然后再发送下一个写请求。
两个设备都已配对。
为什么中央经理的 didWriteValueFor() 没有被调用?