dialog speed throttle fix

    @Override
        public void onDraw(Canvas canvas) {
            final long time = SystemClock.uptimeMillis();
            final long delta = time - mLastTime;
            if (delta >= TEXT_CHARACTER_DELAY_MS) {
                mLastTime = time;           // revision 7 should have this line
                if (mText != null) {
                    if (mCurrentCharacter <= mText.length()) {
                        CharSequence subtext = mText.subSequence(0, mCurrentCharacter);
                        setText(subtext, TextView.BufferType.SPANNABLE);
                        mCurrentCharacter++;
                        postInvalidateDelayed(TEXT_CHARACTER_DELAY_MS);
                    } else {
                        if (mOkArrow != null) {
                            mOkArrow.setVisibility(View.VISIBLE);
                        }
                    }
                }
            }
            super.onDraw(canvas);
        }