Category Archives: Android

Uploading debug symbols to Google Play Store

Did a quick google search and found this

I have the following components installed:

  • NDK (Side by side)
  • CMake
  • Android SDK Command-line Tools (latest)
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An attempt to build static QT for Android

qtbase\cmake\QtPlatformAndroid.cmake contains this:

# Ensure we are using the shared version of libc++
if(NOT ANDROID_STL STREQUAL c++_shared)
    message(FATAL_ERROR "The Qt libraries on Android only supports the shared library configuration of stl. Please use -DANDROID_STL=\"c++_shared\" as configuration argument.")
endif()

and looks like -static-runtime works only for Windows.

I added -c++std c++20 -static -no-openssl to the configuration and removed -separate-debug-info:

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Reducing the size of QT Android libraries

Tried to reduce the size of the QT Android libs by separating debug info with -separate-debug-info option and skipping the modules I do not use:

set "CMAKE_ROOT=E:\PFiles\cmake-3.21.3-windows-x86_64\bin"
set "NINJA_ROOT=E:\PFiles\ninja-win"
set "JDK_ROOT=C:\Program Files\Java\jdk1.8.0_301\bin"
set "MINGW_ROOT=E:\PFiles\mingw-w64\x86_64-8.1.0-posix-seh-rt_v6-rev0\mingw64\bin"
set "PERL_ROOT=E:\PFiles\Strawberry\perl\bin"
     
set PATH=C:\WINDOWS\system32;C:\WINDOWS
set PATH=%CMAKE_ROOT%;%PATH%
set PATH=%NINJA_ROOT%;%PATH%
set PATH=%JDK_ROOT%;%PATH%
set PATH=%MINGW_ROOT%;%PATH%
set PATH=%PERL_ROOT%;%PATH%
set PATH=E:\PFiles\Python35;%PATH%
       
rem Check if the tools are in PATH
where gcc
where mingw32-make.exe
where perl.exe
where javac.exe
where python.exe
where cmake.exe
where ninja.exe
    
set "ANDROID_SDK_ROOT=C:\Users\D-Ef\AppData\Local\Android\Sdk"
set "ANDROID_NDK_PATH=C:\Users\D-Ef\AppData\Local\Android\Sdk\ndk\22.1.7171670"
set "ANDROID_BUILD_TOOLS_REVISION=31.0.0"
     
set MY_INSTALL_PATH=E:\Qt\Qt6.2.2\android
set QT_HOST_PATH=E:\Qt\Qt6.2.2\windows
    
configure.bat -platform win32-msvc -xplatform android-clang -prefix %MY_INSTALL_PATH% -qt-host-path %QT_HOST_PATH% ^
  -android-sdk %ANDROID_SDK_ROOT% -android-ndk %ANDROID_NDK_PATH% -android-ndk-platform android-23 -android-abis x86_64 ^
  -DQT_NO_EXCEPTIONS=1 -release -force-debug-info -separate-debug-info -opensource -confirm-license ^
  -skip qt3d -skip qt5compat -skip qtactiveqt -skip qtcharts -skip qtcoap -skip qtconnectivity ^
  -skip qtdatavis3d -skip qtdoc -skip qtlottie -skip qtmqtt -skip qtnetworkauth -skip qtopcua ^
  -skip qtserialport -skip qtpositioning -skip qtquicktimeline -skip qtquick3d -skip qtremoteobjects ^
  -skip qtscxml -skip qtsensors -skip qtserialbus -skip qtvirtualkeyboard -skip qtwayland -skip qtwebsockets ^
  -skip qtwebchannel -skip qtwebengine -skip qtwebview ^
  1> E:\temp\config-log12.txt 2>&1
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Configuring Android NDK version in QT Creator

When I uninstalled old NDK versions including 21.3.6528147, QT Creator displayed this:

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Building QT 6.2 for Android on Windows

First I built QT 6.2 for Windows then I installed JDK8, CMake 3.21.3 and configured QT as follows:

set "CMAKE_ROOT=E:\PFiles\cmake-3.21.3-windows-x86_64\bin"
set "NINJA_ROOT=E:\PFiles\ninja-win"
set "JDK_ROOT=C:\Program Files\Java\jdk1.8.0_301\bin"
set "MINGW_ROOT=E:\PFiles\mingw-w64\x86_64-8.1.0-posix-seh-rt_v6-rev0\mingw64\bin"
set "PERL_ROOT=E:\PFiles\Strawberry\perl\bin"
 
set PATH=C:\WINDOWS\system32;C:\WINDOWS
set PATH=%CMAKE_ROOT%;%PATH%
set PATH=%NINJA_ROOT%;%PATH%
set PATH=%JDK_ROOT%;%PATH%
set PATH=%MINGW_ROOT%;%PATH%
set PATH=%PERL_ROOT%;%PATH%
set PATH=E:\PFiles\Python35;%PATH%
   
rem Check if the tools are in PATH
where gcc
where mingw32-make.exe
where perl.exe
where javac.exe
where python.exe
where cmake.exe
where ninja.exe

set "ANDROID_SDK_ROOT=C:\Users\D-Ef\AppData\Local\Android\Sdk"
set "ANDROID_NDK_PATH=C:\Users\D-Ef\AppData\Local\Android\Sdk\ndk\21.3.6528147"
rem See qtbase\mkspecs\android-clang\qmake.conf
set "ANDROID_NDK_PLATFORM=android-23"
rem see %ANDROID_SDK_ROOT%\build-tools folder
set "ANDROID_BUILD_TOOLS_REVISION=29.0.2"
 
set MY_INSTALL_PATH=E:\Qt\Qt6.2\android
set QT_HOST_PATH=E:\Qt\Qt6.2\windows

configure.bat -platform android-clang -prefix %MY_INSTALL_PATH% -android-sdk %ANDROID_SDK_ROOT% -android-ndk %ANDROID_NDK_PATH% -qt-host-path %QT_HOST_PATH% -android-abis x86_64 ^
  -DQT_NO_EXCEPTIONS=1 -release -force-debug-info -opensource -confirm-license
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Building QT 6.2 for Windows with MSVC2019

I cloned QT repository:

git clone --recursive https://code.qt.io/qt/qt5.git --branch v6.2.0
cd qt5

Looks like the command below is not required:

./init-repository --module-subset=all

because it prints:

Will not reinitialize already initialized repository (use -f to force)!
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QtPurchasing uses deprecated AIDL billing library

Looks like QtPurchasing uses deprecated AIDL billing library and people say that it crashes on some devices. See https://developer.android.com/google/play/billing/deprecation-faq for more information. Probably they are going to update it in 5.15.7 and move it into examples in QT 6, so it is not clear exactly what will happen with it, we probably better wait QT 5.15.7 to be released.

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Built my QT app for Android with API level 30 (Android 11)

New Android App Bundle and target API level requirements in 2021:

Starting August 2021, new apps will be required to target API level 30 (Android 11) and use the Android App Bundle publishing format. Starting November 2021, all app updates will be required to target API level 30 (Android 11). Apps with a download size of more than 150 MB are now supported by Play Asset Delivery and Play Feature Delivery.

I updated the manifest manually as follows:

<?xml version="1.0"?>
<manifest package="net.geographx.LinesGame" xmlns:android="http://schemas.android.com/apk/res/android" android:versionName="2.5.30" android:versionCode="161" android:installLocation="auto">
    <uses-sdk android:minSdkVersion="21" android:targetSdkVersion="30"/>
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My QT Android app periodically crashes at android::RefBase::incStrong(void const*)

The call stack is:

  #00  pc 00000000000097a8  /system/lib/libutils.so (android::RefBase::incStrong(void const*) const+4)
  #00  pc 0000000000022145  /vendor/lib/libIMGegl.so
  #00  pc 000000000000ab79  /vendor/lib/libIMGegl.so (KEGLGetDrawableParameters+252)
  #00  pc 0000000000041c53  /vendor/lib/egl/libGLESv2_mtk.so
  #00  pc 000000000001663d  /vendor/lib/egl/libGLESv2_mtk.so
  #00  pc 0000000000016b01  /vendor/lib/egl/libGLESv2_mtk.so (glClear+440)
  #00  pc 000000000008acaf  /data/app/net.geographx.LinesGame-9_pUex92-tGEqE4iIbRCCw==/lib/arm/libLinesGameQt_armeabi-v7a.so (LinesGame::Squircle::beforeRendering()+270)
  #00  pc 000000000017d5b9  /data/app/net.geographx.LinesGame-9_pUex92-tGEqE4iIbRCCw==/lib/arm/libQt5Core_armeabi-v7a.so
  #00  pc 0000000000176f4d  /data/app/net.geographx.LinesGame-9_pUex92-tGEqE4iIbRCCw==/lib/arm/libQt5Quick_armeabi-v7a.so (QQuickWindowPrivate::renderSceneGraph(QSize const&, QSize const&)+172)

It is a QT bug that is not fixed yet.

Also my app crashes at the destructor of std::thread and this also a QT bug that is not fixed yet.

Building QT 6.1.0 for Android on Windows

Theoretically it can be:

git clone --recursive https://code.qt.io/qt/qt5.git --branch v6.1.0

or alternatively:

git clone https://code.qt.io/qt/qt5.git --branch v6.1.0
./init-repository --branch --module-subset=essential,qtandroidextras,qtsvg,qtquickcontrols2,qtgraphicaleffects,qtwebsockets,qtmultimedia

or

./init-repository --module-subset=all
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