//=================================
    @Override
    public void onAttachedToWindow(){
        super.onAttachedToWindow();
        if(android.os.Build.VERSION.SDK_INT>=android.os.Build.VERSION_CODES.LOLLIPOP)
            setElevation(20f);
        setOnTouchListener(this);
        animate().alpha(0).setDuration(0).start();
        startX = getX();
        postDelayed(new Runnable(){public void run(){

            WindowManager mgr = (WindowManager)getContext().getSystemService(Context.WINDOW_SERVICE);
            DisplayMetrics dm = new DisplayMetrics();
            mgr.getDefaultDisplay().getMetrics(dm);
            dwidth = dm.widthPixels;

            View parent = (View)getParent();
            ValueAnimator anim = ObjectAnimator.ofFloat(CategoriesSlideView.this, "translationX", 0, parent.getX()+parent.getWidth()-Offset);
            anim.setDuration(0);
            anim.start();
        }}, 400);
    }