public static void postDelayed(@NonNull final Runnable runnable, final int delay) {
        new Handler(Looper.getMainLooper()).postDelayed(runnable, delay);
    }
Show a short toast message to the user. This can be called from any thread.

@param activity the activity the user is facing
@param text     the message
main/src/main/java/cgeo/geocaching/activity/ActivityMixin.java