Merge "Prevent duplicate release same transaction from TransactionPool" into main

    private void startFadeAnimation(@NonNull SurfaceControl leash, boolean show) {

        final float end = show ? 1.f : 0.f;

        final float start = 1.f - end;

        final SurfaceControl.Transaction transaction = mTransactionPool.acquire();

        final ValueAnimator va = ValueAnimator.ofFloat(start, end);

        va.setDuration(FADE_DURATION);

        va.setInterpolator(show ? ALPHA_IN : ALPHA_OUT);

        va.addUpdateListener(animation -> {

            float fraction = animation.getAnimatedFraction();

            final SurfaceControl.Transaction transaction = mTransactionPool.acquire();

            transaction.setAlpha(leash, start * (1.f - fraction) + end * fraction);

            transaction.apply();

            mTransactionPool.release(transaction);

        });

        va.addListener(new AnimatorListenerAdapter() {

            @Override

            public void onAnimationEnd(Animator animation) {

                final SurfaceControl.Transaction transaction = mTransactionPool.acquire();

                transaction.setAlpha(leash, end);

                transaction.apply();

                mTransactionPool.release(transaction);