[Allan]

Hello,

 

There are some changes in BLE scanning for Android 12.

New permissions are required and the location is no more needed.

 

The problem is that when I start a Scan it keeps asking for the location to be enabled.

I am missing something ?

 

Here is my permission setup :

    <uses-permission android:name="android.permission.BLUETOOTH" android:maxSdkVersion="30"/>
    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" android:maxSdkVersion="30"/>
    <uses-permission android:name="android.permission.BLUETOOTH_CONNECT"/>
    <uses-permission android:name="android.permission.BLUETOOTH_SCAN" android:usesPermissionFlags="neverForLocation"/>

    <!--<uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION" android:maxSdkVersion="30"/>-->
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" android:maxSdkVersion="30"/>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

    <uses-feature android:name="android.hardware.bluetooth" android:required="true"/>
    <uses-feature android:name="android.hardware.bluetooth_le" android:required="true"/>
    <uses-feature android:name="android.hardware.location"/>

    <uses-feature android:name="android.hardware.screen.portrait"/>

note: the ACCESS_COARSE_LOCATION should be with android:maxSdkVersion="30" but in that case the scan is not working.

I also added in my C++ (before scanning) :

#ifndef Q_OS_MAC
bool Ble_Central::requestPermission(void) {
   QString scanPerm = "android.permission.BLUETOOTH_SCAN";
   QString connPerm = "android.permission.BLUETOOTH_CONNECT";
   if(QtAndroid::androidSdkVersion() >= 31) {
       auto results = QtAndroid::requestPermissionsSync(QStringList{scanPerm, connPerm});
       if (!results.contains(scanPerm) || results[scanPerm] == QtAndroid::PermissionResult::Denied) {
           qWarning() << "Couldn't get permission: " << scanPerm;
           return false;
       }
       if (!results.contains(connPerm) || results[connPerm] == QtAndroid::PermissionResult::Denied) {
           qWarning() << "Couldn't get permission: " << connPerm;
           return false;
       }
   }
   return true;
}
#else
bool Ble_Central::requestPermission(void) {
   return true;
}
#endif

 

If I’m correct, QT is always asking for the location, not checking the sdk.
The scan is also not asking BLUETOOTH_SCAN and BLUETOOTH_CONNECT so I need to do it manually.

 

Do you have a fix for this behavior ?

 

Cordially,

Allan

[AlexFelgo Team]

Hi Allen,

thanks for the report, I will check back with the dev team quickly. I see that there is a fix for this cherry picked to Qt 5.15.10 and Qt 6.x

Maybe we need to do the same for the main Felgo version or can offer a Qt Marketplace version with this fix. I will keep you updated

Best,
Alex

[AlexFelgo Team]

Hi Allan,

We currently prepare an updated Qt Bluetooth library that fixes the issue, so that the location permission is not required anymore for Android 12+. We will ship the fix with one of the following Felgo updates. If you need a fix right now, please reach out to support@felgo.com, referencing this forum conversation.

Thanks,

Alex from Felgo

[Allan]

Hi,

 

Thanks, I will wait for the next update.

 

Cordially.

[Allan]

Hello,

I’m reviving this thread.

I’m now using Felgo 4, everything works fine, no need to manually ask for permission this time.

The problem is, it keeps asking for the location. Do you have a working example that I can use ?

Thanks.

[AlexFelgo Team]

Hi Allan,

we’ll patch this with the next F4 release, thanks for your report.

Best,
Alex