To build the example with CocoaPods do the following steps:
Install build tools
Install Ruby with rbenv on macOS and install CocoaPods without sudo:
gem install cocoapods
The right way to build Yandex Mobile Ads Example for iOS
Installing Ruby with rbenv on macOS
Install Homebrew
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
Install rbenv
brew install rbenv
Installing latest Ruby version on MacOS Sonoma with Homebrew
Determining how was Ruby Installed.
I have system Ruby:
% which -a ruby
/usr/bin/ruby
ruby -v
ruby 2.6.10p210 (2022-04-12 revision 67958) [universal.x86_64-darwin23]
Installing Homebrew
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
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();
My first attempt to build 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)
