Flutter progressbar

1) Flutter progressbar :
2) Flutter progressbar change color :
3) Flutter progressbar dialog show :
4) Flutter progressbar dialog hide

Flutter progressbar
 showDialog(
      context: context,
      barrierDismissible: false,
      builder: (context) => Container(
        alignment: FractionalOffset.center,
        child: CircularProgressIndicator(valueColor: new AlwaysStoppedAnimation<Color>(Colors.deepOrangeAccent)),
      ));
}

hideProgress(BuildContext context) {
  Navigator.pop(context);
}

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