Objectanimator Pixlated Textview

I face a problem when scaling up TextViews and Checkboxes in Samsung GT-N5110 android version 4.1.2 the following image appears after scaling up the TextView there's textview insid

Solution 1:

private int dp2px(float dp){
            return (int) (dp * activity.getResources().getDisplayMetrics().density + 0.5f);
        }
        private doScale(){
            final LinearLayout linearLayout = (LinearLayout) view.findViewById(R.id.test);
            final TextView textView = (TextView) linearLayout.findViewById(R.id.tv_main);
            final int oldSize = dp2px(30);
            final float scale = 2f;
            final float textSizeOld = textView.getTextSize();
            ValueAnimator valueAnimatorLarge = ValueAnimator.ofInt(1,100 );
            valueAnimatorLarge.setDuration(500);
            valueAnimatorLarge.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {

                @Override
                public void onAnimationUpdate(ValueAnimator animation) {
                    ViewGroup.LayoutParams layoutParams = linearLayout.getLayoutParams();
                    float currentScale = (int)animation.getAnimatedValue()/100f;
                    layoutParams.width = (int) (scale*oldSize*currentScale);
                    layoutParams.height = layoutParams.width;
                    linearLayout.setLayoutParams(layoutParams);
                    textView.setTextSize(scale*textSizeOld*currentScale);
                }
            });
            valueAnimatorLarge.start();
        }