cake_wallet/lib/src/widgets/template_tile.dart

import 'package:flutter/material.dart';
import 'package:cake_wallet/palette.dart';

class TemplateTile extends StatefulWidget {
  TemplateTile({
    Key key,
    @required this.to,
    @required this.amount,
    @required this.from,
    @required this.onTap,
    @required this.onRemove
  }) : super(key: key);

  final String to;
  final String amount;
  final String from;
  final VoidCallback onTap;
  final VoidCallback onRemove;

  @override
  TemplateTileState createState() => TemplateTileState(
      to,
      amount,
      from,
      onTap,
      onRemove
  );
}

class TemplateTileState extends State<TemplateTile> {
  TemplateTileState(
      this.to,
      this.amount,
      this.from,
      this.onTap,
      this.onRemove
      );

  final String to;
  final String amount;
  final String from;
  final VoidCallback onTap;
  final VoidCallback onRemove;
  final trash = Image.asset('assets/images/trash.png', height: 16, width: 16, color: Colors.white);

  bool isRemovable = false;

  @override
  Widget build(BuildContext context) {
    final color = isRemovable ? Colors.white : Theme.of(context).primaryTextTheme.title.color;
    final toIcon = Image.asset('assets/images/to_icon.png', color: color);

    final content = Row(
      mainAxisAlignment: MainAxisAlignment.start,
      mainAxisSize: MainAxisSize.min,
      children: <Widget>[
        Text(
          amount,
          style: TextStyle(
              fontSize: 16,
              fontWeight: FontWeight.w600,
              color: color
          ),
        ),
        Padding(
          padding: EdgeInsets.only(left: 5),
          child: Text(
            from,
            style: TextStyle(
                fontSize: 16,
                fontWeight: FontWeight.w600,
                color: color
            ),
          ),
        ),
        Padding(
          padding: EdgeInsets.only(left: 5),
          child: toIcon,
        ),
        Padding(
          padding: EdgeInsets.only(left: 5),
          child: Text(
            to,
            style: TextStyle(
                fontSize: 16,
                fontWeight: FontWeight.w600,
                color: color
            ),
          ),
        ),
      ],
    );

    final tile = Container(
        padding: EdgeInsets.only(right: 10),
        child: ClipRRect(
          borderRadius: BorderRadius.all(Radius.circular(20)),
          child: GestureDetector(
            onTap: onTap,
            onLongPress: () {
              setState(() {
                isRemovable = true;
              });
            },
            child: Container(
              height: 40,
              padding: EdgeInsets.only(left: 24, right: 24),
              color: Theme.of(context).primaryTextTheme.display3.decorationColor,
              child: content,
            ),
          ),
        )
    );

    final removableTile = Container(
        padding: EdgeInsets.only(right: 10),
        child: ClipRRect(
            borderRadius: BorderRadius.all(Radius.circular(20)),
            child: Row(
              mainAxisSize: MainAxisSize.min,
              children: <Widget>[
                GestureDetector(
                  onTap: () {
                    setState(() {
                      isRemovable = false;
                    });
                  },
                  child: Container(
                    height: 40,
                    padding: EdgeInsets.only(left: 24, right: 10),
                    color: Colors.red,
                    child: content,
                  ),
                ),
                GestureDetector(
                  onTap: onRemove,
                  child: Container(
                    height: 40,
                    width: 44,
                    color: Palette.darkRed,
                    child: Center(
                      child: trash,
                    ),
                  ),
                )
              ],
            )
        )
    );

    return isRemovable ? removableTile : tile;
  }
}