Android : Animation not stopping

My problem is that I have started an animation when my count is < 3 and when I want to stop it does not.

if (contador >= 3) {
                TextView tvcont =(TextView)findViewById(R.id.tvContador);
                tvcont.setText(Integer.toString(contador));
                tvcont.setTextColor(Color.parseColor("#FF0000"));

            }
            else {

                parpadeopro();

            }

the parpadeo pro code -->

private void parpadeopro(){

    TextView tvcont =(TextView)findViewById(R.id.tvContador);
    tvcont.setText(Integer.toString(contador));


    Animation anim = new AlphaAnimation(0.0f, 1.0f);
    anim.setDuration(50);
    anim.setStartOffset(20);
    anim.setRepeatMode(Animation.REVERSE);
    anim.setRepeatCount(Animation.INFINITE);
    tvcont.startAnimation(anim);

}

and then I tried to create a new void called stop_parpadeo with that code, but it doesn't stop...

private void stop_parpadeo(){
    TextView tvcont =(TextView)findViewById(R.id.tvContador);
    tvcont.setText(Integer.toString(contador));
    Animation anim = new AlphaAnimation(0.0f, 1.0f);
    anim.setDuration(50);
    anim.setStartOffset(20);
    anim.setRepeatMode(Animation.REVERSE);
    anim.setRepeatCount(Animation.INFINITE);
    tvcont.startAnimation(anim);
    anim.cancel();

}

Any helps guys? Thanks!.