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Category Archives: Operating Systems
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
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)!
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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Disabling power button on Windows 10
When you mistakenly press power button your Windows 10 machine surprisingly shuts down. Switch it off with the following steps:
Compiling Awl on Ubuntu 18 and 20 with GCC 11
Below I provided the instruction on how to build Awl on Ubuntu 18 and 20.
On Ubuntu 18 you do an extra step to install CMake version >= 3.12:
wget -O - https://apt.kitware.com/keys/kitware-archive-latest.asc 2>/dev/null | sudo apt-key add -
sudo apt-add-repository 'deb https://apt.kitware.com/ubuntu/ bionic main'
sudo apt update
Then do the following steps on both Ubuntu 18 and 20:
sudo apt install cmake
cmake --version
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"/>
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
