View view = findViewById(R.id.fg_splash_screen);
view.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
    @Override
    public void onGlobalLayout() {
        view.getViewTreeObserver().removeOnGlobalLayoutListener(this);
        Bitmap bitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(), Bitmap.Config.ARGB_8888);
        view.draw(new Canvas(bitmap));

        WorkExecutor.execute(() -> {
            try {
                bitmap.compress(Bitmap.CompressFormat.WEBP, 100, new FileOutputStream(getFilesDir()+"/"+
                        "fg_splash_screen.webp"));
            } catch (FileNotFoundException fileNotFoundException) {
                fileNotFoundException.printStackTrace();
            }
        });
    }
});