startChangeIndex method

dynamic startChangeIndex()

Implementation

startChangeIndex() {
  timer = Timer.periodic(const Duration(milliseconds: 100), (time) {
    if (currentRenderIndex < messageString.length) {
      setState(() {
        if (mounted) {
          currentRenderIndex = currentRenderIndex + 1;
        }
      });
    } else {
      if (isFinished) {
        timerCancel();
      }
    }
  });
}