Android 12 support

[calmh]

Problem summary

It appears the library doesn't currently support the permissions model in Android 12.

Steps to reproduce

On an Android 12 phone, Bluetooth permissions are not requested and Bluetooth devices cannot be enumerated.

Environment

(TBD we're still investigating. Will try to patch once we've narrowed down where and how.)

[calmh]

I forgot to mention it here, but there's a fix in #163 that we've had in production now for a while.

[pst9354]

I forgot to mention it here, but there's a fix in #163 that we've had in production now for a while.

Any word from the author, to include this fix and make a new release?

[rrrovalle]

News about #163 release? I really need to use it in Android 12

[pst9354]

I mailed the author on friday, no reply yet. I ended up forking the repo and applied the changes manually..

[rrrovalle]

I'll do the same! Thank's for the reply man :-)

[pst9354]

You can use our repo in the meantime, just add this to your pubspec.yaml:

flutter_bluetooth_serial: ^0.4.0

flutter_bluetooth_serial: git: url: https://github.com/pst9354/flutter_bluetooth_serial ref: master

[byRogerDev]

I have tried it, and I have this problem, can you help me? Thank

D:\Flutter\src\.pub-cache\git\flutter_bluetooth_serial-49d778bd52b9c29cb1105190ff05c6dd6f2b8617\android\src\main\java\io\github\edufolly\flutterbluetoothserial\FlutterBluetoothSerialPlugin.java:459: error: cannot find symbol if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) { ^ symbol: variable S location: class VERSION_CODES D:\Flutter\src\.pub-cache\git\flutter_bluetooth_serial-49d778bd52b9c29cb1105190ff05c6dd6f2b8617\android\src\main\java\io\github\edufolly\flutterbluetoothserial\FlutterBluetoothSerialPlugin.java:462: error: cannot find symbol Manifest.permission.BLUETOOTH_SCAN) ^ symbol: variable BLUETOOTH_SCAN location: class permission D:\Flutter\src\.pub-cache\git\flutter_bluetooth_serial-49d778bd52b9c29cb1105190ff05c6dd6f2b8617\android\src\main\java\io\github\edufolly\flutterbluetoothserial\FlutterBluetoothSerialPlugin.java:465: error: cannot find symbol Manifest.permission.BLUETOOTH_CONNECT) ^ symbol: variable BLUETOOTH_CONNECT location: class permission D:\Flutter\src\.pub-cache\git\flutter_bluetooth_serial-49d778bd52b9c29cb1105190ff05c6dd6f2b8617\android\src\main\java\io\github\edufolly\flutterbluetoothserial\FlutterBluetoothSerialPlugin.java:467: error: cannot find symbol requestString = new String[]{Manifest.permission.BLUETOOTH_SCAN, ^ symbol: variable BLUETOOTH_SCAN location: class permission D:\Flutter\src\.pub-cache\git\flutter_bluetooth_serial-49d778bd52b9c29cb1105190ff05c6dd6f2b8617\android\src\main\java\io\github\edufolly\flutterbluetoothserial\FlutterBluetoothSerialPlugin.java:468: error: cannot find symbol Manifest.permission.BLUETOOTH_CONNECT}; ^

[rrrovalle]

Did you already have tried to add "android" before the word "manifest" ?

[byRogerDev]

I have solved it. In flutter_bluetooth_serial/[android]/build.gradle

Change: compileSdkVersion 30 -> compileSdkVersion 31

[byRogerDev]

Hi again, i have problem when i connected with bluetooth device, in .toAddress(device.address) function:

PlatformException(connect_error, UID 10396 / PID 3613 lacks permission android.permission.BLUETOOTH

I/flutter ( 3613): at android.bluetooth.IBluetoothSocketManager$Stub$Proxy.connectSocket(IBluetoothSocketManager.java:227) I/flutter ( 3613): at android.bluetooth.BluetoothSocket.connect(BluetoothSocket.java:404) I/flutter ( 3613): at io.github.edufolly.flutterbluetoothserial.BluetoothConnection.connect(BluetoothConnection.java:57) I/flutter ( 3613): at io.github.edufolly.flutterbluetoothserial.BluetoothConnection.connect(BluetoothConnection.java:64) I/flutter ( 3613): at io.github.edufolly.flutterbluetoothserial.FlutterBluetoothSerialPlugin$FlutterBluetoothSerialMethodCallHandler.lambda$onMethodCall$4$io-github-edufolly-flutterbluetoothserial-FlutterBluetoothSerialPlugin$FlutterBl

any idea? thanks

[mbabuglia]

@Catalunya69 , are you trying against a Xiaomi?

[byRogerDev]

@Catalunya69 , are you trying against a Xiaomi?

Testing with POCO F3

[mbabuglia]

@Catalunya69 , are you trying against a Xiaomi?

Testing with POCO F3

Try my answer here: https://stackoverflow.com/a/72370969/666228 On a comment on that question, somebody says it had the same problem with POCO F3 as well.

[byRogerDev]

Ohhhh Thanks!!!

Solved with: <uses-permission android:name="android.permission.BLUETOOTH" tools:remove="android:maxSdkVersion" />

[mbabuglia]

Ohhhh Thanks!!!

Solved with: <uses-permission android:name="android.permission.BLUETOOTH" tools:remove="android:maxSdkVersion" />

Glad to hear! Regards.

[MohsinP07]

You can use our repo in the meantime, just add this to your pubspec.yaml:

flutter_bluetooth_serial: ^0.4.0

flutter_bluetooth_serial: git: url: https://github.com/pst9354/flutter_bluetooth_serial ref: master @pst9354 This is not working for me. It would be really helpful if we connect and solve this as I am stuck at this issue since a very long time.

[pst9354]

You can use our repo in the meantime, just add this to your pubspec.yaml:

flutter_bluetooth_serial: ^0.4.0

flutter_bluetooth_serial: git: url: https://github.com/pst9354/flutter_bluetooth_serial ref: master @pst9354 This is not working for me. It would be really helpful if we connect and solve this as I am stuck at this issue since a very long time.

So, what is the problem?

[MohsinP07]

You can use our repo in the meantime, just add this to your pubspec.yaml:

flutter_bluetooth_serial: ^0.4.0

flutter_bluetooth_serial: git: url: https://github.com/pst9354/flutter_bluetooth_serial ref: master

@pst9354 I used approach as you said here but I am still having problem in connecting to devices with android version 12 and 13. Are there any changes in manifest file or other that I need to do? I have added dependency and version you used as well ie. 0.4.0 and also in pubspec.yaml I have used this: flutter_bluetooth_serial: git: url: https://github.com/pst9354/flutter_bluetooth_serial ref: master

[pst9354]

It's very difficult to help you, if you don't give us more information. Error logs?

[MohsinP07]

Only error occurs is that when I try to connect any mobile device with the android version 12 or 13 using Bluetooth it doesn't connect to the device instead it shows the error as : cancelDiscovery(): called by: packageName So, I used the solution suggested by you but still I am facing the issue . I just want to know what additional changes I need to do in my project to resolve this issue.

[pst9354]

I guess Google is your friend, make sure you have the permissions set up correctly. From our project: ...

    <uses-permission android:name="android.permission.BLUETOOTH" />
    <uses-permission android:name="android.permission.BLUETOOTH_SCAN" />
    <uses-permission android:name="android.permission.BLUETOOTH_CONNECT" />
    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />

```...

[MohsinP07]

I guess Google is your friend, make sure you have the permissions set up correctly. From our project: ...

    <uses-permission android:name="android.permission.BLUETOOTH" />
    <uses-permission android:name="android.permission.BLUETOOTH_SCAN" />
    <uses-permission android:name="android.permission.BLUETOOTH_CONNECT" />
    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />

```...

@pst9354 Thanks! After setting these permissions, I am now able to connect the devices. Cheers!!