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chipweinberger / flutter_blue_plus

Flutter plugin for connecting and communicationg with Bluetooth Low Energy devices, on Android, iOS, macOS
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[Bug]: Auto connect not working on iOS #741

Closed samnbd closed 11 months ago

samnbd commented 11 months ago

Requirements

Have you checked this problem on the example app?

Yes

FlutterBluePlus Version

1.31.3

Flutter Version

3.7.11

What OS?

iOS

OS Version

17.2.1

Bluetooth Module

Pavlok device

What is your problem?

When pairing the device with device.connect(autoConnect: true, mtu: null), it connects the device and when I move the device out of range it disconnects and re-connects as expected when it comes in range on Android. But on iOS, it doesn't re-connect when it comes back in range. and I have to re-connect it manually. Notice int the logs that the error (mtu == null) || !autoConnect': mtu and auto connect are incompatible is being thrown even though, I've set the mtu: null in the connect function.

The auto connect issue on iOS is not working because of the (mtu == null) || !autoConnect': mtu and auto connect are incompatible and it only happens when I run the app in debug mode on iOS. But when running the app in release mode auto connect works correctly and the mtu error is not thrown

Logs

[FBP-iOS] handleMethodCall: connect
[FBP-iOS] didConnectPeripheral
[FBP-iOS] didDisconnectPeripheral:
[FBP-iOS]   error: The connection has timed out unexpectedly.
[VERBOSE-2:dart_vm_initializer.cc(41)] Unhandled Exception: 'package:flutter_blue_plus/src/bluetooth_device.dart': Failed assertion: line 95 pos 12: '(mtu == null) || !autoConnect': mtu and auto connect are incompatible
#0      _AssertionError._doThrowNew (dart:core-patch/errors_patch.dart:51:61)
#1      _AssertionError._throwNew (dart:core-patch/errors_patch.dart:40:5)
#2      BluetoothDevice.connect (package:flutter_blue_plus/src/bluetooth_device.dart:95:12)
#3      FlutterBluePlus._methodCallHandler (package:flutter_blue_plus/src/flutter_blue_plus.dart:431:44)
#4      MethodChannel._handleAsMethodCall (package:flutter/src/services/platform_channel.dart:555:55)
#5      MethodChannel.setMethodCallHandler.<anonymous closure> (package:flutter/src/services/platform_channel.dart:548:34)
#6      _DefaultBinaryMessenger.setMessageHandler.<anonymous closure> (package:flutter/src/services/binding.dart:393:35)
#7      _invoke2 (dart:ui/hooks.dart:183:13)
#8      _ChannelCallbackRecord.invoke (dart:ui/channel_buffers.dart:40:5)
#9      _Channel.push (dart:ui/channel_buffers.dart:130:31)
#10     ChannelBuffers.push (dart:ui/channel_buffers.dart:326:17)
#11     PlatformDispatcher._dispatchPlatformMessage (dart:ui/platform_dispatcher.dart:664:22)
#12     _dispatchPlatformMessage (dart:ui/hooks.dart:86:31)
samnbd commented 11 months ago

The auto connect issue on iOS is not working because of the (mtu == null) || !autoConnect': mtu and auto connect are incompatible and it only happens when I run the app in debug mode on iOS. But when running the app in release mode auto connect works correctly and the mtu error is not thrown

chipweinberger commented 11 months ago

fixed 1.31.4

samnbd commented 11 months ago

Fix confirmed...Thanks