flutter_eyevideo/lib/bizmodule/bizwidget/cover_image_item.dart

import 'package:flutter/material.dart';

class CoverImageItem extends StatelessWidget {
  final double width;
  final String coverUrl;
  final int duration;

  const CoverImageItem(
      {Key key, this.width: 0, this.coverUrl, this.duration: -1})
      : super(key: key);

  @override
  Widget build(BuildContext context) {
    var coverImageWidget = Container(
      width: width == 0 ? double.infinity : width,
      height: (width == 0 ? MediaQuery.of(context).size.width : width) * 0.5,
      decoration: ShapeDecoration(
        image: DecorationImage(
          image: NetworkImage(coverUrl),
          fit: BoxFit.cover,
        ),
        shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.circular(5),
        ),
      ),
    );

    if (duration >= 0) {
      var tvTimeLabel = Container(
        decoration: ShapeDecoration(
          color: Color(0xff333333),
          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(3)),
        ),
        child: Padding(
          padding: const EdgeInsets.only(left: 6, top: 1, right: 6, bottom: 1),
          child: Text(
            getTimeLabel(duration),
            style: TextStyle(
              fontSize: 12,
              fontWeight: FontWeight.bold,
              fontFamily: 'Oswald-Regular',
              color: Color(0xffffffff),
            ),
          ),
        ),
      );

      return Stack(
        alignment: AlignmentDirectional.bottomEnd,
        children: <Widget>[
          coverImageWidget,
          Positioned(
            child: tvTimeLabel,
            bottom: 3,
            right: 3,
          ),
        ],
      );
    }

    return coverImageWidget;
  }

  String getTimeLabel(int duration) {
    if (duration < 60) {
      return "00 : $duration";
    } else if (duration >= 60) {
      int minute = duration ~/ 60;
      int second = duration % 60;
      String minuteStr = minute < 10 ? "0$minute" : "$minute";
      String secondStr = second < 10 ? "0$second" : "$second";
      return "$minuteStr : $secondStr";
    }
    return "00 : 00";
  }
}