comunicmobile/lib/ui/widgets/login_scaffold.dart

import 'package:comunic/utils/intl_utils.dart';
import 'package:flutter/material.dart';

/// Custom "Scaffold" for signed out users
///
/// @author Pierre Hubert

class LoginScaffold extends StatelessWidget {
  final Widget child;

  const LoginScaffold({Key key, @required this.child})
      : assert(child != null),
        super(key: key);

  @override
  Widget build(BuildContext context) {
    final mediaQuery = MediaQuery.of(context);

    final availableHeight =
        mediaQuery.size.height - mediaQuery.viewInsets.bottom;
    final minHeight = 450.0;

    final contentHeight =
        availableHeight < minHeight ? minHeight : availableHeight;

    return Theme(
      data: Theme.of(context).copyWith(
        hintColor: Colors.white,
        inputDecorationTheme: InputDecorationTheme(
          errorStyle: TextStyle(color: Colors.white),
          hintStyle: TextStyle(color: Colors.white),
          labelStyle: TextStyle(color: Colors.white),
          focusColor: Colors.white,
          fillColor: Colors.white,
          hoverColor: Colors.white,
        ),
        scaffoldBackgroundColor: Colors.indigo.shade900,
        textTheme: TextTheme(
          body1: TextStyle(color: Colors.white),
          button: TextStyle(color: Colors.white),
        ),
      ),
      child: Scaffold(
        body: SingleChildScrollView(
          child: Center(
            child: Container(
              height: contentHeight,
              child: ConstrainedBox(
                constraints: BoxConstraints(maxWidth: 300),
                child: Column(
                  children: <Widget>[
                    Spacer(flex: 3),
                    Text("Comunic", style: TextStyle(fontSize: 50)),
                    Spacer(flex: 1),
                    Text(tr("Free social network that respect your privacy")),
                    Spacer(flex: 1),
                    Padding(
                      padding: const EdgeInsets.all(8.0),
                      child: Material(
                        child: child,
                        color: Colors.indigo.shade500,
                      ),
                    ),
                    Spacer(flex: 5),
                  ],
                ),
              ),
            ),
          ),
        ),
      ),
    );
  }
}