How to QBluetooth transmit data to Bluetooth Device By Using Rfcomm protocol On IOS Device。

[Nankon]

some questions:
1、I Use int QBluetoothLocalDevice::allDevices(),It return Zero;
2、I Use QBluetoothLocalDevice::isValid（）；It reture false all the time.

Such Question ,It works well On Android and OS，Has Any Boby Done the similar Program