Android Service - Java - No implementation found qt5.android.bluetooth.QtBluetoothLE.leScanResult

Diackne · wrote on 17 Sept 2021, 12:46

Hi!

i try to implement the QtBluetooth scan devices in an Android application, as service but when i try

m_deviceDiscoveryAgent = new QBluetoothDeviceDiscoveryAgent(this);
...
m_deviceDiscoveryAgent->start(QBluetoothDeviceDiscoveryAgent::LowEnergyMethod);

i got this error:
No implementation found for void org.qtproject.qt5.android.bluetooth.QtBluetoothLE.leScanResult

09-17 13:28:21.081 15661 15688 W libservice_armeabi-v7a.so: qt.bluetooth.android: ACCESS_COARSE|FINE_LOCATION permission available
09-17 13:28:21.084 15661 15688 D libservice_armeabi-v7a.so: qt.bluetooth.android: Location turned on
09-17 13:28:21.111 15661 15688 D QtBluetoothGatt: New BTLE scanning API
09-17 13:28:21.122 31471 31541 I bt_stack: [INFO:gatt_api.cc(961)] GATT_Register f2acdb98-0fd4-caef-0443-741364f08dc3
09-17 13:28:21.123 31471 31541 I bt_stack: [INFO:gatt_api.cc(981)] allocated gatt_if=17
09-17 13:28:21.125 15661 15685 D BluetoothLeScanner: onScannerRegistered() - status=0 scannerId=17 mScannerId=0
09-17 13:28:21.126  1297  1981 E WificondControl: Noise: 0, Snr: 0, Chload: -1
09-17 13:28:21.128  2451 16593 D BT_CHR: BtChrManager: notifyEvent eventId = 11
09-17 13:28:21.128  2451 10051 D Nc_Chr_BT: NcBtDftManager: handleBtParam id = 11
09-17 13:28:21.128  2451 10051 D BtStatePassiveManager: handleBtStatePassive , apkName = com.app, apkAction = 4
09-17 13:28:21.129  2505  3091 I VoWifiQoe_N: ProcessReqInfo ul_msgid=5
09-17 13:28:21.129  2505  3091 I VoWifiQoe_N: processReqInfo MSG_WIFI_SIGNAL_INFO_IND 
09-17 13:28:21.129  2505  3091 I VoWifiQoe_N: ProcessSignalInfoInd curStateIsIdle 0 
09-17 13:28:21.129  2505  3091 I VoWifiQoe_N: ProcessSignalInfoInd wifiInterruptFlg 1 enScreenState 1 curStateIsIdle 0
09-17 13:28:21.129  2505  3091 I VoWifiQoe_N: UpdateEvaluatePolicy EVALUATE_POLICY_RSSI
09-17 13:28:21.129  2505  3091 I VoWifiQoe_N: UpdateEvaluatePolicy phoneId 1 is not qoe started!
09-17 13:28:21.129  2451 32551 D BT_CHR: BtChrManager: EventTask run 11
09-17 13:28:21.130  2247  2365 I PGServer: report state:8 event type:1 pid:0 uid:10225 pkg:null to pid: 1297
09-17 13:28:21.131  2247  2365 I BluetoothState: new active bluetooth uid: 10225, pid:15661, reason:BLE_SCAN
09-17 13:28:21.134  2451 10051 D Nc_Chr_BT: BtChrDataBaseManager: checkIfBTStatPassiveRcdExist read from:BtChrStatisticPassiveTable, get record: 1
09-17 13:28:21.137  2451 10051 D Nc_Chr_BT: BtChrDataBaseManager: updateBTStatPassiveRcd update suc, rowChg=1
09-17 13:28:21.137  2451 10051 D BtStatePassiveManager: btPassive save  result is true
09-17 13:28:21.143 15661 15688 D libservice_armeabi-v7a.so: qt.bluetooth.android: QBluetoothDeviceDiscoveryAgentPrivate::start() - Low Energy search successfully started.
09-17 13:28:21.144 15661 15688 D libservice_armeabi-v7a.so: ######Scanning for devices...
09-17 13:28:21.200 15661 15661 E com.app:qt: No implementation found for void org.qtproject.qt5.android.bluetooth.QtBluetoothLE.leScanResult(long, android.bluetooth.BluetoothDevice, int, byte[]) (tried Java_org_qtproject_qt5_android_bluetooth_QtBluetoothLE_leScanResult and Java_org_qtproject_qt5_android_bluetooth_QtBluetoothLE_leScanResult__JLandroid_bluetooth_BluetoothDevice_2I_3B)
09-17 13:28:21.201 15661 15661 D AndroidRuntime: Shutting down VM
09-17 13:28:21.201 15661 15661 I QarthLog: [PatchStore] createDisableExceptionQarthFile
09-17 13:28:21.202 15661 15661 I QarthLog: [PatchStore] create disable file for com.app uid is 10225
09-17 13:28:21.208 15661 15661 E AndroidRuntime: FATAL EXCEPTION: main

 <service android:name=".AppService" android:process=":qt">
            <!-- android:process=":qt" is needed to force the service to run on a separate process than the Activity -->
            <!-- Application arguments -->
            <!-- Application arguments -->
            <!-- Application to launch -->
            <!-- Application to launch -->
            <!-- Deploy Qt libs as part of package -->
            <meta-data android:name="android.app.bundle_local_qt_libs" android:value="-- %%BUNDLE_LOCAL_QT_LIBS%% --"/>
            <!-- Deploy Qt libs as part of package -->
            <!-- Run with local libs -->
            <meta-data android:name="android.app.use_local_qt_libs" android:value="-- %%USE_LOCAL_QT_LIBS%% --"/>
            <meta-data android:name="android.app.libs_prefix" android:value="/data/local/tmp/qt/"/>
            <meta-data android:name="android.app.load_local_libs_resource_id" android:resource="@array/load_local_libs"/>
            <meta-data android:name="android.app.load_local_jars" android:value="-- %%INSERT_LOCAL_JARS%% --:jar/QtPositioning.jar:jar/QtAndroidBluetooth.jar:jar/QtAndroidBearer.jar"/>
            <meta-data android:name="android.app.static_init_classes" android:value="-- %%INSERT_INIT_CLASSES%% --"/>
            <!-- Run with local libs -->
            <!--  Messages maps -->
            <meta-data android:value="@string/fatal_error_msg" android:name="android.app.fatal_error_msg"/>
            <meta-data android:value="@string/unsupported_android_version" android:name="android.app.unsupported_android_version"/>
            <!--  Messages maps -->
            <!-- Background running -->
            <meta-data android:name="android.app.background_running" android:value="true"/>
            <!-- Background running -->
            <meta-data android:name="android.app.lib_name" android:value="service"/>
        </service>


...
  <!-- Background running -->
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
    <uses-permission android:name="android.permission.ACTIVITY_RECOGNITION"/>
    <uses-permission android:name="android.permission.BLUETOOTH"/>
    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
    <uses-permission android:name="android.permission.BLUETOOTH_SCAN"/>
    <uses-permission android:name="android.permission.BLUETOOTH_ADVERTISE"/>
    <uses-permission android:name="android.permission.BLUETOOTH_CONNECT"/>
    <uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION"/>

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

info:
Qt - 5.15.2
android-30

it seems to me when it tries to start it doesn't find this method.

Can someone help me? thanks!!

Diackne · wrote on 18 Sept 2021, 10:11

I found the problem the AndroidManifest.xml missing the loaders of Qt libs :

 <meta-data android:name="android.app.lib_name" android:value="-- %%INSERT_APP_LIB_NAME%% --"/>
            <meta-data android:name="android.app.qt_sources_resource_id" android:resource="@array/qt_sources"/>
            <meta-data android:name="android.app.repository" android:value="default"/>
            <meta-data android:name="android.app.qt_libs_resource_id" android:resource="@array/qt_libs"/>
            <meta-data android:name="android.app.bundled_libs_resource_id" android:resource="@array/bundled_libs"/>