There is no way yet to achieve that, at least that I know of, the only thing you can do is monitor the space and dimension to see if the virtual keyboard is displayed. The Android OS will display the soft keyboard or not on his own. You can only try to monitor to see if any changes on size have occurred and you can assume it's for a keyboard. More info can be found over here: https://stackoverflow.com/questions/2150078/how-to-check-visibility-of-software-keyboard-in-android https://groups.google.com/forum/#!topic/android-platform/FyjybyM0wGA
It's really sad this cannot be easily monitored. -----Original Message----- From: Interest <interest-bounces+godboutj=amotus...@qt-project.org> On Behalf Of Roman Wüger Sent: November 1, 2018 5:58 AM To: Alex Blasche <alexander.blas...@qt.io> Cc: Qt Project MailingList <interest@qt-project.org> Subject: Re: [Interest] Detect connected Bluetooth keyboard under Android Hi Alex, thanks for the hint. My plan was that the user should pair and connect the keyboard manually in the settings dialog. In the application i only want to know if a keyboard is connected, otherwise I will show an onscreen keyboard. Thanks Regards Roman > Am 30.10.2018 um 08:24 schrieb Alex Blasche <alexander.blas...@qt.io>: > > As a disclaimer I have not really done any HID work on Android, but based on > the Android docs you need to use the BluetoothHidDevice class to interact > with such keyboards. BluetoothHidDevice.Callback.onConnectionStateChanged is > probably what you need. > > This Android API is not available via Qt APIs. QBluetoothLocalDevice is for > the local Bluetooth device which is not the remote Bluetooth keyboard and HID > connects/disconnects cannot be done programmatically by design. The user has > to make the connection manually. Therefore I am assuming the platform does > not expose such devices via the usual discovery mechanisms either. You have > to write your own Java/JNI code to interact with the class. > > -- > Alex > > ________________________________________ > From: Interest <interest-bounces+alexander.blasche=qt...@qt-project.org> on > behalf of Roman Wüger <roman.wue...@gmx.at> > Sent: Monday, 29 October 2018 11:37:32 PM > To: Qt Project MailingList > Subject: [Interest] Detect connected Bluetooth keyboard under Android > > Hi @all, > > i played with the QBluetoothLocalDevice and QBluetoothDiscoveryAgent to > detected if a Bluetooth keyboard is connected to an android tablet. > > However, I can’t find out the correct way. I tried to read the > majordeviceclass and minordeviceclass but it doesn‘t work, I only get 31,0 > but the documentation says that 5 should be the major device class. The > keyboard works in any input fields, but I can‘t find it. > > I only need a signal if a keyboard connects/disconnects like > hardwareKeyboardConnected(bool) > > What do I need for that? > > Thanks in advance > _______________________________________________ > Interest mailing list > Interest@qt-project.org > http://lists.qt-project.org/mailman/listinfo/interest > _______________________________________________ > Interest mailing list > Interest@qt-project.org > http://lists.qt-project.org/mailman/listinfo/interest _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
