port.readBytesOnListen make UI hang/freeze a few millisecond when data come

[indrawow]

Using this code,
_port.readBytesOnListen(255, (Uint8List value) { debugPrint(value.toString()); });
then,
_port.writeBytesFromUint8List(uint8Data);

UI freeze a few millisecond, is there something i missed?

[FengChendian]

I use a stream to read with duration. I think I should fix the UI freezed problem.

But _read is still a sync processing due to Windows 32API. Maybe you can use async or compute to solve this problem.

[FengChendian]

Refer to PR #16 , maybe due to WaitForSingleObjec blocking.

If there is still problom about UI freeze, please tell me