Windows 10 for Android Project

roscoe_x

I develop a C++ project and want this project to run in Android. I use QT Creator 4.3.1, Window 10, Android Studio 3.2 (Mainly for setup the Android SDK tools and build tools).

So after I setup JDK location, Android SDK and NDK location in Tools > Options > Devices > Android. And check Autmotically create kits for Android tool chains. Then I check Build & Run > Kits, but I cannot find the auto-detected kits there. Why QT Creator can't create the auto-detected kits?

So I add a new kit for Android. The settings as picture below.
0_1538022511563_QtCreator_Build&Run_KitsSettings_2.png

I get the compiler from
...\ndk-bundle\toolchains\aarch64-linux-android-4.9\prebuilt\windows-x86_64\bin

When building the project I get "Cannot find the android build step." Error. When executing step "Deploy to Android device". Where can I change the step to set to an Android device?

sierdzio

Clang is not yet supported by Qt for Android, you need to use gcc.

I suggest you update your Qt Creator and try adding NDK/SDK again to see if it will generate the kits automatically then.

Also, make sure you have Qt for Android installed - check your Qt Maintenance Tool.

roscoe_x

@sierdzio If I use MinGW 5.3.0 for the compiler I get different compilation error. Can I use MinGW? The error I get is "Project ERROR: Unknown module(s) in QT: webenginewidgets". How to remove this error? I've tried changing *.pro file, add a line Qt+=webenginewidgets, but still getting same error.

I already install QT with webenginewidgets module. I also install QT to support Android.

sierdzio

You have to use the cross-compiler from Android NDK.

roscoe_x

@sierdzio Is there any guidance on how to do cross-compiling on Android?

sierdzio

@roscoe_x said in Windows 10 for Android Project:

@sierdzio Is there any guidance on how to do cross-compiling on Android?

Yes, with Qt it's very simple.

Install Java.
Install Android SDK.
Install Android NDK.
Install Qt.
Set up Qt Creator for Android development.
Compile & run your apps - same way as on any other platform.

Qt does all the heavy lifting for you.

roscoe_x

I have found the problem. The auto-detect kits function only works using NDK 10, while before I was using NDK 18. So after selecting the kits, the project can be built. But this problem is hard to detect because there's no useful information.