Android support

[wdmitry]

I find some very old articles of people tried to build this thing up for android.
Is there any Android support at all? Tutorials?

[Thrasher]

Yes we actively maintain Android support and have a few users who routinely provide bug fixes and other enhancements

[wdmitry]

I am trying to compile hello world for android. Are there any updated tutorials?

[texus]

Are you following https://github.com/SFML/SFML/wiki/Tutorial%3A-Building-SFML-for-Android ?

Where are you stuck exactly?

[wdmitry]

Hm, this one I didn't follow. let me try. I tried to setup with android studio.

I did run this command additionally to install sfml to ndk
```
cmake -DCMAKE_SYSTEM_NAME=Android -DCMAKE_ANDROID_NDK=/android-ndk-r25c -DCMAKE_ANDROID_ARCH_ABI=arm64-v8a -DCMAKE_ANDROID_STL_TYPE=c++_static -DCMAKE_BUILD_TYPE=Debug ../..
```

Here what I get at the last command:
```
> Task :app:configureCMakeDebug[arm64-v8a] FAILED
C/C++: CMake Error at CMakeLists.txt:10 (find_package):
C/C++:   By not providing "FindSFML.cmake" in CMAKE_MODULE_PATH this project has
C/C++:   asked CMake to find a package configuration file provided by "SFML", but
C/C++:   CMake did not find one.
C/C++:   Could not find a package configuration file provided by "SFML" (requested
C/C++:   version 3) with any of the following names:
C/C++:     SFMLConfig.cmake
C/C++:     sfml-config.cmake
C/C++:   Add the installation prefix of "SFML" to CMAKE_PREFIX_PATH or set
C/C++:   "SFML_DIR" to a directory containing one of the above files.  If "SFML"
C/C++:   provides a separate development package or SDK, be sure it has been
C/C++:   installed.

```

[texus]

After running "make install" when building SFML, the SFML files should have been installed to the "sources/third_party/sfml" folder inside your NDK. First double check that the files exist there.

The last part of the tutorial is slightly outdated as it is still written for SFML 2, for SFML 3 you need to edit the "app/gradle.build.kts" file inside the android example. At the top of the file it sets a default NDK_VERSION and ARCH_ABI. If either of these is wrong then it will fail to find SFML with the error that you showed. So you need to change the NDK_VERSION from "25.2.9519653" to the version where SFML was installed to, and change ARCH_ABI from "arm64-v8a" to whatever you set CMAKE_ANDROID_ARCH_ABI to when building SFML (which is "armeabi-v7a" in the tutorial).

Edit: Are you using the NDK installed with the sdkmanager? The CMAKE_ANDROID_NDK is usually "<ANDROID_SDK_ROOT>/ndk/25.2.9519653" (where you replace "<ANDROID_SDK_ROOT>").

[wdmitry]

I see it did install into a different ndk folder. I just copied it from there to the path it wants and now it works!
Yay!

[wdmitry]

was able to configure and compile my project for android, all works!
SFML3 rulz!

[wdmitry]

JNI undefined code indeed does crash.

Question: can sfml trigger input text on android system then?

[texus]

You can show the software keyboard with "sf::Keyboard::setVirtualKeyboardVisible(true)", if that is what you mean with triggering input text.

[8Observer8]

I have made a step-by-step instruction for Android: How to build SFML3 with gradlew for Android on Window 10 with MinGW