Installed GTX 1060 driver:
Application folder does not exist when MacOS app is run the first time
When my QT app starts first time on MacOS, its directory ./Application Support/Sharlines/Lines/ does not exit, but QT creates it when I write to QSettings first time.
To create the local directory I added the following code:
// Local data directory does not exist when the app is run first time on MacOS.
if (fs::create_directories(GetLocalFolder()))
{
qDebug() << static_cast<QString>(qtil::Format() << "Local folder '" << GetLocalFolder() << "' has been created.");
}
Generating QR code for my app
First I created a PHP file lines-app-store.php on sharlines.com website with the following content:
<?php
$iPod = stripos($_SERVER['HTTP_USER_AGENT'],"iPod");
$iPhone = stripos($_SERVER['HTTP_USER_AGENT'],"iPhone");
$iPad = stripos($_SERVER['HTTP_USER_AGENT'],"iPad");
$macOs = stripos($_SERVER['HTTP_USER_AGENT'],"Mac");
$Android= stripos($_SERVER['HTTP_USER_AGENT'],"Android");
//check if user is using ipod, iphone or ipad...
if( $iPod || $iPhone || $iPad || $macOs)
{
//we send these people to Apple Store
header('Location: https://apps.apple.com/app/id6504194961');
}
else if($Android)
{
//we send these people to Android Store
header('Location: https://play.google.com/store/apps/details?id=net.geographx.LinesGame');
}
else
{
//we send these people to Windows Store
header('Location: https://www.microsoft.com/ru-ru/store/p/lines-3d/9nblggh5g9c6');
}
?>
Using Swift in a QT6 app
I simply opened arboreus_examples/qt6/CMake/UsingSwift/UsingSwift_v3/CMakeLists.txt in QT Creator and was able to build it and run.
In its main.cpp it creates a Swift wrapper and calls method:
ASwift* oSwift = new ASwift(&oEngine);
oSwift->mInit();
_A_DEBUG << oSwift->mString();
Building Yandex Mobile Ads Example for iOS
According to the official repository docs I tried to install CocaPods:
sudo gem install cocoapods
but got the following error:
ERROR: Error installing cocoapods:
The last version of drb (>= 0) to support your Ruby & RubyGems was 2.0.6. Try installing it with `gem install drb -v 2.0.6` and then running the current command again
drb requires Ruby version >= 2.7.0. The current ruby version is 2.6.10.210.
Installed some dependencies and the installation of CocoaPods succeeded:
sudo gem install drb -v 2.0.6
sudo gem install activesupport -v 6.1.7.8
sudo gem install cocoapods
Version tolerant serialization in C++
Last time I have been working on a C++ binary serialization framework that allows to serialize simple data structures with a few lines of code. First, you add AWL_REFLECT macro to all your structures as follows:
#include "Awl/Reflection.h"
#include <string>
#include <vector>
#include <set>
struct A
{
int a;
bool b;
std::string c;
double d;
AWL_REFLECT(a, b, c, d)
};
“Null object reference” exceptions on Android 14 in a QT app
When I switched to QT 6.7.2 and set QT_ANDROID_TARGET_SDK_VERSION "34" (that is Android 14) my QT app started to crash with the following stack traces:
On google Pixel 5 64-bit only 1080x2340 Android 14 (SDK 34) arm64-v8a:
Exception java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.Class java.lang.Object.getClass()' on a null object reference
at android.os.Parcel.createExceptionOrNull (Parcel.java:3189)
at android.os.Parcel.createException (Parcel.java:3167)
at android.os.Parcel.readException (Parcel.java:3150)
at android.database.DatabaseUtils.readExceptionFromParcel (DatabaseUtils.java:202)
at android.database.DatabaseUtils.readExceptionFromParcel (DatabaseUtils.java:154)
at android.content.ContentProviderProxy.call (ContentProviderNative.java:764)
at android.content.ContentResolver.call (ContentResolver.java:2466)
at android.content.ContentResolver.call (ContentResolver.java:2446)
at ekfr.a (:com.google.android.gms@242013038@24.20.13 (190400-633713831):29)
at com.google.android.gms.wallet.intentoperation.setupwizard.PaymentsSetupWizardAccountChangeIntentOperation.onHandleIntent (:com.google.android.gms@242013038@24.20.13 (190400-633713831):252)
at com.google.android.chimera.IntentOperation.onHandleIntent (:com.google.android.gms@242013038@24.20.13 (190400-633713831):2)
at ajdw.onHandleIntent (:com.google.android.gms@242013038@24.20.13 (190400-633713831):8)
at pbh.run (:com.google.android.gms@242013038@24.20.13 (190400-633713831):70)
at pbg.run (:com.google.android.gms@242013038@24.20.13 (190400-633713831):152)
at elbx.run (:com.google.android.gms@242013038@24.20.13 (190400-633713831):21)
at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:644)
at java.lang.Thread.run (Thread.java:1012)
QT stopped compiling with QT_NO_EXCEPTIONS
QT 6.7.2 failed to build with QT_NO_EXCEPTIONS for Android with the following errors:
C:/dev/repos/qt-everywhere-src-6.7.2/qtbase/src/corelib/io/qprocess_unix.cpp:889:29: error: use of undeclared identifier 'e'
failChildProcess(d, e.what(), FakeErrnoForThrow);
^
C:/dev/repos/qt-everywhere-src-6.7.2/qtbase/src/corelib/io/qprocess_unix.cpp:890:7: error: expected expression
} QT_CATCH (...) {
^
C:/dev/repos/qt-everywhere-src-6.7.2/qtbase/src/corelib/global/qexceptionhandling.h:28:23: note: expanded from macro 'QT_CATCH'
# define QT_CATCH(A) else
^
2 errors generated.
[673/5992] Building CXX object qtbase/src/corelib/CMakeFiles/Core.dir/itemmodels/qabstractitemmodel.cpp.o
ninja: build stopped: subcommand failed.
Updating Yandex Mobile SDK to version 7.1
QT generates gradle.properties with the following values:
android.useAndroidX=true
android.enableJetifier=true
androidBuildToolsVersion=34.0.0
androidCompileSdkVersion=34
androidNdkVersion=26.2.11394342
buildDir=build
qt5AndroidDir=C:/dev/libs/Qt6/android/release/arm64-v8a/./src/android/java
qtAndroidDir=C:/dev/libs/Qt6/android/release/arm64-v8a/./src/android/java
qtMinSdkVersion=23
qtTargetAbiList=arm64-v8a
qtTargetSdkVersion=33
Entering EU Digital Services Act compliance information in App Store Connect
I spent several hours trying to figure out how to Enter EU Digital Services Act compliance information in Apple App Store Connect. The keys steps I did were the following:
