Function ANativeActivity_onCreate

src/SFML/Main/MainAndroid.cpp:491–566

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JNIEXPORT void ANativeActivity_onCreate(ANativeActivity* activity, void* savedState, std::size_t savedStateSize)
{
    // Create an activity states (will keep us in the know, about events we care)
    auto* states = new sf::priv::ActivityStates();

    for (auto& isButtonPressed : states->isButtonPressed)
        isButtonPressed = false;

    if (savedState != nullptr)
    {
        const auto* begin = static_cast<const std::byte*>(savedState);
        const auto* end   = begin + savedStateSize;
        states->savedState.assign(begin, end);
    }

    states->mainOver = false;

    states->initialized = false;
    states->terminated  = false;

    // Share it across the SFML modules
    sf::priv::resetActivity(states);

    // These functions will update the activity states and therefore, will allow
    // SFML to be kept in the know
    activity->callbacks->onStart   = onStart;
    activity->callbacks->onResume  = onResume;
    activity->callbacks->onPause   = onPause;
    activity->callbacks->onStop    = onStop;
    activity->callbacks->onDestroy = onDestroy;

    activity->callbacks->onNativeWindowCreated      = onNativeWindowCreated;
    activity->callbacks->onNativeWindowDestroyed    = onNativeWindowDestroyed;
    activity->callbacks->onNativeWindowRedrawNeeded = onNativeWindowRedrawNeeded;
    activity->callbacks->onNativeWindowResized      = onNativeWindowResized;

    activity->callbacks->onInputQueueCreated   = onInputQueueCreated;
    activity->callbacks->onInputQueueDestroyed = onInputQueueDestroyed;

    activity->callbacks->onWindowFocusChanged   = onWindowFocusChanged;
    activity->callbacks->onContentRectChanged   = onContentRectChanged;
    activity->callbacks->onConfigurationChanged = onConfigurationChanged;

    activity->callbacks->onSaveInstanceState = onSaveInstanceState;
    activity->callbacks->onLowMemory         = onLowMemory;

    // Share this activity with the callback functions
    states->activity = activity;

    // Keep the screen turned on and bright
    ANativeActivity_setWindowFlags(activity, AWINDOW_FLAG_KEEP_SCREEN_ON, AWINDOW_FLAG_KEEP_SCREEN_ON);

    getScreenSizeInPixels(*activity, states->screenSize.x, states->screenSize.y);
    getFullScreenSizeInPixels(*activity, states->fullScreenSize.x, states->fullScreenSize.y);

    // Redirect error messages to logcat
    sf::err().rdbuf(&states->logcat);