android auto disconnect

[sibeichen]

/BluetoothGatt( 4247): onClientConnectionState() - status=34 clientIf=7 device=B4:6B:FC:F6:E8:65 D/FlutterBluePlugin( 4247): [onConnectionStateChange] status: 34 newState: 0 I/flutter ( 4247): state:BluetoothDeviceState.disconnected D/BluetoothGatt( 4247): onClientConnectionState() - status=0 clientIf=7 device=B4:6B:FC:F6:E8:65 D/FlutterBluePlugin( 4247): [onConnectionStateChange] status: 0 newState: 2 I/flutter ( 4247): state:BluetoothDeviceState.connected D/BluetoothGatt( 4247): discoverServices() - device: B4:6B:FC:F6:E8:65 D/BluetoothGatt( 4247): onConnectionUpdated() - Device=B4:6B:FC:F6:E8:65 interval=54 latency=0 timeout=500 status=0 D/BluetoothGatt( 4247): onConnectionUpdated() - Device=B4:6B:FC:F6:E8:65 interval=6 latency=0 timeout=500 status=0 D/BluetoothGatt( 4247): onSearchComplete() = Device=B4:6B:FC:F6:E8:65 Status=0 D/FlutterBluePlugin( 4247): [onServicesDiscovered] count: 3 status: 0 I/flutter ( 4247): remoteId: B4:6B:FC:F6:E8:65 characteristicUuid: 00000001-0001-0000-0000-56789aaabbb0 serviceUuid: 00000001-0000-0000-0000-56789aaabbb0 I/chatty ( 4247): uid=10429(com.hachibot.hbcontrol) 1.ui identical 1 line I/flutter ( 4247): remoteId: B4:6B:FC:F6:E8:65 characteristicUuid: 00000001-0001-0000-0000-56789aaabbb0 serviceUuid: 00000001-0000-0000-0000-56789aaabbb0 E/flutter ( 4247): [ERROR:flutter/lib/ui/ui_dart_state.cc(198)] Unhandled Exception: PlatformException(read_characteristic_error, unknown reason, may occur if readCharacteristic was called before last read finished., null, null) E/flutter ( 4247): #0 StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:607:7) E/flutter ( 4247): #1 MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:167:18) E/flutter ( 4247): E/flutter ( 4247): #2 BluetoothCharacteristic.read (package:flutter_blue/src/bluetooth_characteristic.dart:82:5) E/flutter ( 4247):