Quickly:Compile SFML using CMake, it should look like this:
export ANDROID_NDK=/path/to/ndk
mkdir build
cd build
cmake -DCMAKE_TOOLCHAIN_FILE=../cmake/toolchains/android.toolchain.cmake -DANDROID_ABI=armeabi ..
make
make install
The last command,
make install, will install everything in your NDK (headers, libraries, bootstrap).
From now, just create a regular
native Android project (actually, just copy and adjust the example provided in SFML source, it'll be easier), compile and run. Refer to the example to write your app Android.mk and Application.mk scripts. It should look like this:
cd path/to/your/android-project
$ANDROID_NDK/ndk-build # this line compiles your project)
Then press the run button from your IDE.