Android : How to close the application after animation?

Hi i'm running an animation and after 2 seconds i want to stop it and close the whole application.

This is my animation:

public void onImageButtonOkClick(View view) {
            setContentView(R.layout.success);

            final ImageView mAnimLogo = (ImageView) findViewById(R.id.loading_image);
            final AnimationDrawable mAnimation = (AnimationDrawable) mAnimLogo.getDrawable();

                mAnimLogo.post(new Runnable() {
                    @Override
                    public void run() {
                        mAnimLogo.setVisibility(View.VISIBLE);
                        mAnimation.start();
                    }
                });
}

and i tried to use finish() after a timer was called - the application closed, but without any animations.

Any Suggestions?