stack_wallet/lib/pages/exchange_view/wallet_initiated_exchange_view.dart

import 'dart:async';

import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:stackwallet/pages/exchange_view/exchange_form.dart';
import 'package:stackwallet/pages/exchange_view/sub_widgets/step_row.dart';
import 'package:stackwallet/utilities/enums/coin_enum.dart';
import 'package:stackwallet/utilities/text_styles.dart';
import 'package:stackwallet/utilities/theme/stack_colors.dart';
import 'package:stackwallet/widgets/custom_buttons/app_bar_icon_button.dart';

class WalletInitiatedExchangeView extends ConsumerStatefulWidget {
  const WalletInitiatedExchangeView({
    Key? key,
    required this.walletId,
    required this.coin,
  }) : super(key: key);

  static const String routeName = "/walletInitiatedExchange";

  final String walletId;
  final Coin coin;

  @override
  ConsumerState<WalletInitiatedExchangeView> createState() =>
      _WalletInitiatedExchangeViewState();
}

class _WalletInitiatedExchangeViewState
    extends ConsumerState<WalletInitiatedExchangeView> {
  late final String walletId;
  late final Coin coin;

  @override
  void initState() {
    walletId = widget.walletId;
    coin = widget.coin;
    super.initState();
  }

  @override
  void dispose() {
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    debugPrint("BUILD: $runtimeType");

    return Scaffold(
      backgroundColor: Theme.of(context).extension<StackColors>()!.background,
      appBar: AppBar(
        leading: AppBarBackButton(
          onPressed: () async {
            if (FocusScope.of(context).hasFocus) {
              FocusScope.of(context).unfocus();
              await Future<void>.delayed(const Duration(milliseconds: 75));
            }
            if (mounted) {
              Navigator.of(context).pop();
            }
          },
        ),
        title: Text(
          "Exchange",
          style: STextStyles.navBarTitle(context),
        ),
      ),
      body: LayoutBuilder(
        builder: (context, constraints) {
          final width = MediaQuery.of(context).size.width - 32;
          return Padding(
            padding: const EdgeInsets.all(12),
            child: SingleChildScrollView(
              child: ConstrainedBox(
                constraints: BoxConstraints(
                  minHeight: constraints.maxHeight - 24,
                ),
                child: IntrinsicHeight(
                  child: Padding(
                    padding: const EdgeInsets.all(4),
                    child: Column(
                      crossAxisAlignment: CrossAxisAlignment.stretch,
                      children: [
                        StepRow(
                          count: 4,
                          current: 0,
                          width: width,
                        ),
                        const SizedBox(
                          height: 14,
                        ),
                        Text(
                          "Exchange amount",
                          style: STextStyles.pageTitleH1(context),
                        ),
                        const SizedBox(
                          height: 8,
                        ),
                        Text(
                          "Network fees and other exchange charges are included in the rate.",
                          style: STextStyles.itemSubtitle(context),
                        ),
                        const SizedBox(
                          height: 24,
                        ),
                        ExchangeForm(
                          walletId: walletId,
                          coin: coin,
                        ),
                      ],
                    ),
                  ),
                ),
              ),
            ),
          );
        },
      ),
    );
  }
}