How to display Captions in slider about flutter_carousel_slider HOT 7 CLOSED

new Padding(
  padding: new EdgeInsets.symmetric(vertical: 15.0),
  child: new CarouselSlider(
    items: map<Widget>(imgList, (index, i) {
      return new Container(
        margin: new EdgeInsets.all(5.0),
        child: new ClipRRect(
          borderRadius: new BorderRadius.all(new Radius.circular(5.0)),
          child: new Stack(
            children: <Widget>[
              new CachedNetworkImage(
                imageUrl: i,
                fit: BoxFit.cover,
                width: 1000.0,
                placeholder: placeholder,
              ),
              new Positioned(
                bottom: 0.0,
                left: 0.0,
                right: 0.0,
                child: new Container(
                  decoration: new BoxDecoration(
                    gradient: new LinearGradient(
                      colors: [Color.fromARGB(200, 0, 0, 0), Color.fromARGB(0, 0, 0, 0)],
                      begin: Alignment.bottomCenter,
                      end: Alignment.topCenter,
                    )
                  ),
                  padding: EdgeInsets.symmetric(vertical: 10.0, horizontal: 20.0),
                  child: new Text('No. $index image',
                    style: new TextStyle(
                      color: Colors.white,
                      fontSize: 20.0,
                      fontWeight: FontWeight.bold,
                    ),
                  )
                )
              ),
            ],
          )
        )
      );
    }).toList(),
    autoPlay: false,
    viewportFraction: 0.9,
    aspectRatio: 2.0,
  )
),