Develop Reference

Error building Qt app for Android with Qt Creator

When I tried to build QtFireExample with my QtCreator, failed with below error message.
The installed SDK tools version (26.1.1) does not include Gradle
scripts. The minimum Qt version required for Gradle build to work is
5.9.0/5.6.3 Error while building/deploying project QtFirebaseExample (kit: Android) When executing step "Build Android APK"
My android studio is 3.2.1. And SDK tools 26.1 is also installed.
qt version is also above 5.9.0
What I did mistake?
❯ qmake --version
QMake version 3.1
Using Qt version 5.12.0 in /usr/local/Cellar/qt/5.12.0/lib

There's more steps to follow before you can deploy your first Android app using QtCreator. Installing SDK tools is not enough. Here is what I did, I'm using Windows, but hopefully the steps are the same under Ubuntu.
Install QtCreator using the link provided by Hitokage, include QtCreator (I got version 4.8.0), and Qt 5.12.0 binaries for your platform + needed Android (armv7, x86...)
Get JDK 1.8.X.X
Get NDK r18b (or a more recent version)
Get SDK tools 26.1.1 (what you already did)
SDK tools itself is not enough, some SDK modules must be installed, from SDK tools folder, run:
sdkmanager platform-tools
sdkmanager build-tools;28.0.3
sdkmanager extras;google;usb_driver
sdkmanager platforms;android-22 (which is enough for me, you may want something different based on your target Android devices)
Then open QtCreator, Go to "Mobile devices" (my french version calls it "Appareils mobiles"), then make it point to installed JDK, SDK, NDK, clic Apply and then kits should be automtically created. Now you are ready to compile and deploy and Android app for API 22.
Note that gradle is automatically downloaded by QtCreator first time you'll request a deployment.

I have tried downgrading the SDK Tools which didn't work. What worked for me however was downloading the official QT installer (working on Linux), installed QT to a new directory along with ARM64-v8a and ARMv7 (which probably solved the problem, I didn't have that in the package I installed from Arch repo). Now I can (after allowing the developer and debug mode on the device) deploy the app on the phone.
EDIT: Then chose one of those auto-detected kits.

missing binaries after installing NDK using Android studio

I have installed NDK using Android Studio but I cannot find for example:
arm-linux-androideabi-cpp ,
arm-linux-androideabi-c++
arm-linux-androideabi-gcc-4.9
arm-linux-androideabi-gcc-ar
arm-linux-androideabi-gcc-nm
under:
/Android/Sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin
How can I install them?
Thanks

Freshly setup Qt build for Android fails on OSX machine

I am doing a fresh installation of Commercial Qt on a new MacOS Sierra machine. I am trying to build a sample Qt app for android & iOS. I am able to build my QtApp for iOS without any trouble.
But on android I get the following error:
Buildfile: build.xml does not exist!
Build failed
Building the android package failed!
-- For more information, run this command with --verbose.
19:47:50: The process "/Users/MyComputer/Qt/5.7/android_armv7/bin/androiddeployqt" exited with code 14.
Error while building/deploying project t1 (kit: Android for armeabi-v7a (GCC 4.9, Qt 5.7.1))
When executing step "Build Android APK"
I have downloaded latest ndk r14b from here.
I have installed latest sdk that comes with Android Studio these days from here. And updated android sdkmanager to installed all platforms ranging from android-19 to android-25.
I have installed latest JDK 8 as well. I tested the android setup by building & running an android app from Android Studio which worked flawlessly.
Qt worked with Android pretty nicely. What has changed ? Should I do some tweaks because of some structural changes in Android ?
Copying PathToAndroidStudio/templates into PathToAndroidSDK/templates or PathToAndroidSDK/tools/templates as suggested here & here doesn't seem to be enough.
What more should I do apart from copying the templates folder as suggested in some other answers ?

You are trying to use Ant build system. Change it to using Gradle-based one or take a look here: The ant/ folder is suddenly missing from Android SDK. Did Google remove it?

Android studio 2.2 cannot found Cmake for NDK

i am using windows 7-64bit OS
Want to integrate NDK, Get help from NDK installation steps
Cannot find out Cmake which required for Ndk
Can any one help me to get Cmake, without cmack its giving error
Find screen of sdk tools

How can I install Android NDK Cmake tools on headless server

I'm trying to configure an headless build-server to build an Android NDK project that's using Cmake to build the C++ part.
Right now I'm having this issue:
* What went wrong:
A problem occurred configuring project ':app'.
> Failed to find CMake.
Install from Android Studio under File/Settings/Appearance & Behavior/System Settings/Android SDK/SDK Tools/CMake.
Expected CMake executable at /usr/local/android-sdk-linux/cmake/bin/cmake.

I've found a workaround!!
I've install cmake using this script: https://github.com/Commit451/android-cmake-installer
It's done the job until Google publish a fix so we can install it using the Sdk Manager (here link of the issue

Google has put a new tool into the SDK for this now (as of 25.2.3): sdkmanager

The SDK manager can be used from the command line: http://tools.android.com/recent/updatingsdkfromcommand-line
One thing to note though is that that's actually a rather old version of the SDK manager and it's fed from a different set of data, i.e. the packages available in the standalone SDK manager will not necessarily match those in the Studio SDK manager.

I'm running into the same issue myself. AFAIK, the only way you can install the Android CMake is through Android Studio since the command line tools don't include CMake when you run: android list sdk --all (version r24.4.1)
As a workaround, you can just package the SDK with CMake and download them to your server until CMake becomes available via the Android CLI tools.