Function goToFullscreenMode

src/SFML/Main/MainAndroid.cpp:124–180

///////////////////////////////////////////////////////

////////////////////////////////////////////////////////////
void goToFullscreenMode(ANativeActivity& activity)
{
    // Get the current Android API level.
    const int apiLevel = getAndroidApiLevel(activity);

    // Hide the status bar
    ANativeActivity_setWindowFlags(&activity, AWINDOW_FLAG_FULLSCREEN, AWINDOW_FLAG_FULLSCREEN);

    // Hide the navigation bar
    JNIEnv& lJNIEnv = *activity.env;

    jobject objectActivity = activity.clazz;
    jclass  classActivity  = lJNIEnv.GetObjectClass(objectActivity);

    jmethodID methodGetWindow = lJNIEnv.GetMethodID(classActivity, "getWindow", "()Landroid/view/Window;");
    jobject   objectWindow    = lJNIEnv.CallObjectMethod(objectActivity, methodGetWindow);

    jclass    classWindow        = lJNIEnv.FindClass("android/view/Window");
    jmethodID methodGetDecorView = lJNIEnv.GetMethodID(classWindow, "getDecorView", "()Landroid/view/View;");
    jobject   objectDecorView    = lJNIEnv.CallObjectMethod(objectWindow, methodGetDecorView);

    jclass classView = lJNIEnv.FindClass("android/view/View");

    // Default flags
    jint flags = 0;

    // API Level 14
    if (apiLevel >= 14)
    {
        jfieldID   fieldSystemUiFlagLowProfile = lJNIEnv.GetStaticFieldID(classView,
                                                                        "SYSTEM_UI_FLAG_HIDE_NAVIGATION",
                                                                        "I");
        const jint systemUiFlagLowProfile      = lJNIEnv.GetStaticIntField(classView, fieldSystemUiFlagLowProfile);
        flags |= systemUiFlagLowProfile;
    }

    // API Level 16
    if (apiLevel >= 16)
    {
        jfieldID   fieldSystemUiFlagFullscreen = lJNIEnv.GetStaticFieldID(classView, "SYSTEM_UI_FLAG_FULLSCREEN", "I");
        const jint systemUiFlagFullscreen      = lJNIEnv.GetStaticIntField(classView, fieldSystemUiFlagFullscreen);
        flags |= systemUiFlagFullscreen;
    }

    // API Level 19
    if (apiLevel >= 19)
    {
        jfieldID   fieldSystemUiFlagImmersiveSticky = lJNIEnv.GetStaticFieldID(classView,
                                                                             "SYSTEM_UI_FLAG_IMMERSIVE_STICKY",
                                                                             "I");
        const jint systemUiFlagImmersiveSticky = lJNIEnv.GetStaticIntField(classView, fieldSystemUiFlagImmersiveSticky);
        flags |= systemUiFlagImmersiveSticky;
    }

    jmethodID methodsetSystemUiVisibility = lJNIEnv.GetMethodID(classView, "setSystemUiVisibility", "(I)V");
    lJNIEnv.CallVoidMethod(objectDecorView, methodsetSystemUiVisibility, flags);
}