Issue with displaying maps on Qt Android Application

[Aninoss]

Hello Everyone
For the past three days, I have been working on integrating Google Maps, OSM, and Here maps into an Android application, but unfortunately, I have been facing some difficulties. Interestingly, all the maps I mentioned work perfectly on Windows, Linux, Mac, and iOS.

I have tried several Android emulators and real devices, including Samsung, Huawei, Xiaomi, and OnePlus, but with no success. I have even tried it on several other machines, but it seems like the problem is with the Qt Android framework itself.

Cmake code

cmake_minimum_required(VERSION 3.21)
project(QGuiApp VERSION 1.0.0 LANGUAGES CXX)

set(CMAKE_AUTOMOC ON)
set(CXX_STANDARD 17)
set(CXX_STANDARD_REQUIRED ON)

# ========= Set directories
set(SOURCE_DIR "${CMAKE_SOURCE_DIR}/src")
set(INCLUDE_DIR "${CMAKE_SOURCE_DIR}/include")

# ========= Include directories
include_directories(${SOURCE_DIR})
include_directories(${INCLUDE_DIR})

# ========= Add directories files
file(GLOB_RECURSE SOURCES
    "${SOURCE_DIR}/*.cpp"
    "${INCLUDE_DIR}/*.h"
)

# ========= Include libraries
find_package(Qt6 COMPONENTS Gui Quick Positioning Location REQUIRED)

# ========= Add executable
qt_add_executable(${CMAKE_PROJECT_NAME}
    ${SOURCES}
)

# ========= Set Resources
set(RESOURCE_DIR
    "resource/imgs/Profile.jpg"
)

# ========= Add qml medule
qt_add_qml_module(${CMAKE_PROJECT_NAME}
    URI mainLib
    VERSION 1.0
    QML_FILES
    interfaces/main.qml
    components/myButton.qml
    RESOURCES
    ${RESOURCE_DIR}
)

# ========= Cnfigure Android package
if(ANDROID)
    set(ANDROID_PACKAGE_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/android")
    set_property(TARGET QGuiApp PROPERTY QT_ANDROID_PACKAGE_SOURCE_DIR ${ANDROID_PACKAGE_SOURCE_DIR})
    add_custom_target(cmake_android_package
        SOURCES
        ${ANDROID_PACKAGE_SOURCE_DIR}/AndroidManifest.xml
        ${ANDROID_PACKAGE_SOURCE_DIR}/build.gradle
        ${ANDROID_PACKAGE_SOURCE_DIR}/grable.properties
        ${ANDROID_PACKAGE_SOURCE_DIR}/res/values/libs.xml
    )

    if(ANDROID_ABI STREQUAL "armeabi-v7a")
        set(ANDROID_EXTRA_LIBS
            ${CMAKE_CURRENT_SOURCE_DIR}/lib/armeabi-v7a/libcrypto_1_1.so
            ${CMAKE_CURRENT_SOURCE_DIR}/lib/armeabi-v7a/libssl_1_1.so)
    endif()

    if(ANDROID_ABI STREQUAL "x86_64")
        set(ANDROID_EXTRA_LIBS
            ${CMAKE_CURRENT_SOURCE_DIR}/lib/x86_64/libcrypto_1_1.so
            ${CMAKE_CURRENT_SOURCE_DIR}/lib/x86_64/libssl_1_1.so)
    endif()
endif()

# ========= Link target subDirectories
target_link_directories(${CMAKE_PROJECT_NAME} PUBLIC src)
target_link_directories(${CMAKE_PROJECT_NAME} PUBLIC include)

# ========= Link libraries
target_link_libraries(${CMAKE_PROJECT_NAME}
    PRIVATE Qt6::Gui
    Qt6::Quick
    Qt6::Positioning
    Qt6::Location
)

Cpp

#include <QGuiApplication>
#include <QQmlApplicationEngine>

int main(int argc, char *argv[])
{
    QGuiApplication application(argc, argv);
    QQmlApplicationEngine engine;

    const QUrl url(u"qrc:/mainLib/interfaces/main.qml"_qs);
    QObject::connect(
        &engine, &QQmlApplicationEngine::objectCreated, &application, [url](QObject *obj, const QUrl &objUrl)
        {
        if(!obj && objUrl == url)
            QGuiApplication::exit(-1); },
        Qt::QueuedConnection);
    engine.load(url);

    qDebug() << "Applicaiton name: " << QGuiApplication::applicationName();
    application.setApplicationVersion("1.0.0");
    qDebug() << "Applicaiton version: " << QGuiApplication::applicationVersion();
    qDebug() << "Platform name: " << QGuiApplication::platformName();
    qDebug() << "Platform name: " << application.platformName();
    qDebug() << "Device pixel ratio: " << application.devicePixelRatio();

    return application.exec();
}

Qml

import QtQuick 6.5
import QtQuick.Controls 6.5
import QtPositioning 6.5
import QtLocation 6.5

Window {
    color: "red"
    height: 500
    title: qsTr("Hello World!")
    visible: true
    width: 700

    Rectangle {
        anchors.fill: parent
        anchors.margins: 10
        color: "#ffffff"

        Plugin {
            id: mapPlugin
            name: "osm"
        }

        // Plugin {
        //     id: mapPlugin
        //     name: "googlemaps"
        //     PluginParameter {
        //         name: "apikey"
        //         value: "ApiKey"
        //     }
        // }

        Map {
            id: map
            anchors.fill: parent
            plugin: mapPlugin
            center: QtPositioning.coordinate(59.91, 10.75) // Oslo
            zoomLevel: 14
        }
    }
}

AndroidManifest.xml

<?xml version="1.0"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="org.qtproject.example" android:installLocation="auto" android:versionCode="3" android:versionName="1.2">
    <!-- %%INSERT_PERMISSIONS -->
    <!-- %%INSERT_FEATURES -->
    <supports-screens android:anyDensity="true" android:largeScreens="true" android:normalScreens="true" android:smallScreens="true"/>
    <application android:name="org.qtproject.qt.android.bindings.QtApplication" android:hardwareAccelerated="true" android:label="-- %%INSERT_APP_NAME%% --" android:requestLegacyExternalStorage="true" android:allowNativeHeapPointerTagging="false" android:allowBackup="true" android:fullBackupOnly="false" android:icon="@drawable/icon">
        <meta-data
            android:name="com.google.android.geo.API_KEY"
            android:value="ApiKey">
        </meta-data>
        <activity android:name="org.qtproject.qt.android.bindings.QtActivity" android:configChanges="orientation|uiMode|screenLayout|screenSize|smallestScreenSize|layoutDirection|locale|fontScale|keyboard|keyboardHidden|navigation|mcc|mnc|density" android:label="-- %%INSERT_APP_NAME%% --" android:launchMode="singleTop" android:screenOrientation="unspecified" android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
            <meta-data android:name="android.app.lib_name" android:value="-- %%INSERT_APP_LIB_NAME%% --"/>
            <meta-data android:name="android.app.arguments" android:value="-- %%INSERT_APP_ARGUMENTS%% --"/>
            <meta-data android:name="android.app.extract_android_style" android:value="minimal"/>
        </activity>
    </application>
</manifest>

and I also add implementation 'com.google.android.gms:play-services-maps:18.1.0'
to build.gradle and android.useAndroidX=true to gradle.properties
The Qt Creator Output

I project.exampl: Late-enabling -Xcheck:jni
W project.exampl: Unexpected CPU variant for X86 using defaults: x86_64
D CompatibilityChangeReporter: Compat change id reported: 171979766; UID 10164; state: DISABLED
V GraphicsEnvironment: ANGLE Developer option for 'org.qtproject.example' set to: 'default'
V GraphicsEnvironment: Neither updatable production driver nor prerelease driver is supported.
D NetworkSecurityConfig: No Network Security Config specified, using platform default
D NetworkSecurityConfig: No Network Security Config specified, using platform default
D libEGL  : loaded /vendor/lib64/egl/libEGL_emulation.so
D libEGL  : loaded /vendor/lib64/egl/libGLESv1_CM_emulation.so
D libEGL  : loaded /vendor/lib64/egl/libGLESv2_emulation.so
W System  : ClassLoader referenced unknown path:
D Qt JAVA : Class org.qtproject.qt.android.positioning.QtPositioning does not implement setActivity method
I QtCore  : Start
I qt.positioning.android: Positioning start
I Qt      : qt started
D HostConnection: createUnique: call
D HostConnection: HostConnection::get() New Host Connection established 0x7bea4b0f3910, tid 25313
D HostConnection: HostComposition ext ANDROID_EMU_CHECKSUM_HELPER_v1 ANDROID_EMU_native_sync_v2 ANDROID_EMU_native_sync_v3 ANDROID_EMU_native_sync_v4 ANDROID_EMU_dma_v1 ANDROID_EMU_direct_mem ANDROID_EMU_vulkan ANDROID_EMU_deferred_vulkan_commands ANDROID_EMU_vulkan_null_optional_strings ANDROID_EMU_vulkan_create_resources_with_requirements ANDROID_EMU_YUV_Cache ANDROID_EMU_vulkan_ignored_handles ANDROID_EMU_has_shared_slots_host_memory_allocator ANDROID_EMU_vulkan_free_memory_sync ANDROID_EMU_vulkan_shader_float16_int8 ANDROID_EMU_vulkan_async_queue_submit ANDROID_EMU_vulkan_queue_submit_with_commands ANDROID_EMU_sync_buffer_data ANDROID_EMU_vulkan_async_qsri ANDROID_EMU_read_color_buffer_dma GL_OES_EGL_image_external_essl3 GL_OES_vertex_array_object GL_KHR_texture_compression_astc_ldr ANDROID_EMU_host_side_tracing ANDROID_EMU_gles_max_version_3_1
W OpenGLRenderer: Failed to choose config with EGL_SWAP_BEHAVIOR_PRESERVED, retrying without...
W OpenGLRenderer: Failed to initialize 101010-2 format, error = EGL_SUCCESS
D EGL_emulation: eglCreateContext: 0x7bea4b0f2350: maj 3 min 1 rcv 4
D EGL_emulation: eglMakeCurrent: 0x7bea4b0f2350: ver 3 1 (tinfo 0x7bec6ba00080) (first time)
I Gralloc4: mapper 4.x is not supported
D HostConnection: createUnique: call
D HostConnection: HostConnection::get() New Host Connection established 0x7bea4b0efb90, tid 25313
D goldfish-address-space: allocate: Ask for block of size 0x100
D goldfish-address-space: allocate: ioctl allocate returned offset 0x3e3ffe000 size 0x2000
W Gralloc4: allocator 4.x is not supported
D HostConnection: HostComposition ext ANDROID_EMU_CHECKSUM_HELPER_v1 ANDROID_EMU_native_sync_v2 ANDROID_EMU_native_sync_v3 ANDROID_EMU_native_sync_v4 ANDROID_EMU_dma_v1 ANDROID_EMU_direct_mem ANDROID_EMU_vulkan ANDROID_EMU_deferred_vulkan_commands ANDROID_EMU_vulkan_null_optional_strings ANDROID_EMU_vulkan_create_resources_with_requirements ANDROID_EMU_YUV_Cache ANDROID_EMU_vulkan_ignored_handles ANDROID_EMU_has_shared_slots_host_memory_allocator ANDROID_EMU_vulkan_free_memory_sync ANDROID_EMU_vulkan_shader_float16_int8 ANDROID_EMU_vulkan_async_queue_submit ANDROID_EMU_vulkan_queue_submit_with_commands ANDROID_EMU_sync_buffer_data ANDROID_EMU_vulkan_async_qsri ANDROID_EMU_read_color_buffer_dma GL_OES_EGL_image_external_essl3 GL_OES_vertex_array_object GL_KHR_texture_compression_astc_ldr ANDROID_EMU_host_side_tracing ANDROID_EMU_gles_max_version_3_1
D HostConnection: createUnique: call
D HostConnection: HostConnection::get() New Host Connection established 0x7bea4b104ad0, tid 25316
D HostConnection: HostComposition ext ANDROID_EMU_CHECKSUM_HELPER_v1 ANDROID_EMU_native_sync_v2 ANDROID_EMU_native_sync_v3 ANDROID_EMU_native_sync_v4 ANDROID_EMU_dma_v1 ANDROID_EMU_direct_mem ANDROID_EMU_vulkan ANDROID_EMU_deferred_vulkan_commands ANDROID_EMU_vulkan_null_optional_strings ANDROID_EMU_vulkan_create_resources_with_requirements ANDROID_EMU_YUV_Cache ANDROID_EMU_vulkan_ignored_handles ANDROID_EMU_has_shared_slots_host_memory_allocator ANDROID_EMU_vulkan_free_memory_sync ANDROID_EMU_vulkan_shader_float16_int8 ANDROID_EMU_vulkan_async_queue_submit ANDROID_EMU_vulkan_queue_submit_with_commands ANDROID_EMU_sync_buffer_data ANDROID_EMU_vulkan_async_qsri ANDROID_EMU_read_color_buffer_dma GL_OES_EGL_image_external_essl3 GL_OES_vertex_array_object GL_KHR_texture_compression_astc_ldr ANDROID_EMU_host_side_tracing ANDROID_EMU_gles_max_version_3_1
D EGL_emulation: eglCreateContext: 0x7bea4b103d50: maj 3 min 1 rcv 4
D EGL_emulation: eglMakeCurrent: 0x7bea4b103d50: ver 3 1 (tinfo 0x7bec6ba00100) (first time)
D HostConnection: createUnique: call
D HostConnection: HostConnection::get() New Host Connection established 0x7bea4b0f1510, tid 25336
D HostConnection: HostComposition ext ANDROID_EMU_CHECKSUM_HELPER_v1 ANDROID_EMU_native_sync_v2 ANDROID_EMU_native_sync_v3 ANDROID_EMU_native_sync_v4 ANDROID_EMU_dma_v1 ANDROID_EMU_direct_mem ANDROID_EMU_vulkan ANDROID_EMU_deferred_vulkan_commands ANDROID_EMU_vulkan_null_optional_strings ANDROID_EMU_vulkan_create_resources_with_requirements ANDROID_EMU_YUV_Cache ANDROID_EMU_vulkan_ignored_handles ANDROID_EMU_has_shared_slots_host_memory_allocator ANDROID_EMU_vulkan_free_memory_sync ANDROID_EMU_vulkan_shader_float16_int8 ANDROID_EMU_vulkan_async_queue_submit ANDROID_EMU_vulkan_queue_submit_with_commands ANDROID_EMU_sync_buffer_data ANDROID_EMU_vulkan_async_qsri ANDROID_EMU_read_color_buffer_dma GL_OES_EGL_image_external_essl3 GL_OES_vertex_array_object GL_KHR_texture_compression_astc_ldr ANDROID_EMU_host_side_tracing ANDROID_EMU_gles_max_version_3_1
D EGL_emulation: eglCreateContext: 0x7bea4b0efad0: maj 3 min 1 rcv 4
D EGL_emulation: eglMakeCurrent: 0x7bea4b0efad0: ver 3 1 (tinfo 0x7bec6ba00180) (first time)
D libQGuiApp_x86_64.so: Applicaiton name:  "libQGuiApp_x86_64.so"
D libQGuiApp_x86_64.so: Applicaiton version:  "1.0.0"
D libQGuiApp_x86_64.so: Platform name:  "android"
D libQGuiApp_x86_64.so: Platform name:  "android"
D libQGuiApp_x86_64.so: Device pixel ratio:  3.5
W libQGuiApp_x86_64.so: QGeoTileProviderOsm: Tileserver disabled at  QUrl("http://maps-redirect.qt.io/osm/5.8/satellite")
W libQGuiApp_x86_64.so: QGeoTileFetcherOsm: all providers resolved
W qt.tlsbackend.ossl: : Failed to load libssl/libcrypto.
W qt.network.ssl: : The backend "cert-only" does not support QSslKey
W qt.network.ssl: : Active TLS backend does not support key creation
W qt.network.ssl: : The backend "cert-only" does not support QSslKey
W qt.network.ssl: : Active TLS backend does not support key creation
W qt.network.ssl: : The backend "cert-only" does not support QSslKey
W qt.network.ssl: : Active TLS backend does not support key creation
W qt.network.ssl: : The backend "cert-only" does not support QSslKey
W qt.network.ssl: : Active TLS backend does not support key creation
W qt.network.ssl: : The backend "cert-only" does not support QSslKey
W qt.network.ssl: : Active TLS backend does not support key creation
W qt.network.ssl: : The backend "cert-only" does not support QSslKey
W qt.network.ssl: : Active TLS backend does not support key creation
W qt.network.ssl: : The backend "cert-only" does not support QSslSocket
W qt.network.ssl: : The backend named "cert-only" does not support TLS
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
D EGL_emulation: app_time_stats: avg=361.53ms min=1.25ms max=2465.30ms count=7
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed
W qt.network.ssl: : QSslSocket::connectToHostEncrypted: TLS initialization failed

I have successfully built the Google Maps plugin, which is functioning well on all other platforms.
If anyone has encountered a similar issue, I would appreciate any help or guidance on this matter.

[JoeCFD]

@Aninoss do you need network module?

[Aninoss]

@JoeCFD said in Issue with displaying maps on Qt Android Application:

do you need network module?

I Did but the same problem still occurs

[JoeCFD]

@Aninoss from chatGPT

The error message "qt.network.ssl: : The backend 'cert-only' does not support QSslKey" indicates that the SSL backend being used by the Qt library does not support the use of QSslKey objects.

QSslKey is a class in the Qt library that represents an SSL private key. The SSL backend is responsible for handling SSL/TLS connections and encrypting and decrypting data.

The "cert-only" backend is a backend in the Qt library that provides SSL functionality without support for private keys. This backend is often used in situations where only server-side authentication is required, such as in cases where the server only needs to present a valid SSL certificate to clients.

To resolve this error, you can try using a different SSL backend in the Qt library that supports QSslKey objects. For example, the OpenSSL backend supports QSslKey objects and is widely used. You can switch to the OpenSSL backend by setting the environment variable QT_SSL_BACKEND to "openssl" before running your application.

Alternatively, you can modify your code to not use QSslKey objects, or use a different SSL library altogether.