Masterarbeit/lib/ui/pageTouchPoints/AppBarPageTouchPoints.dart

import 'package:touch_demonstrator/src/blocs/BlocProvider.dart';
import 'package:touch_demonstrator/pages/DebugPage.dart';
import 'package:flutter/material.dart';
import 'package:touch_demonstrator/src/blocs/bluetoothBloc.dart';
import 'package:touch_demonstrator/src/blocs/debugCounterBloc.dart';

Widget buildAppBarPageTouchPoints(BuildContext context) {
  void _pageRouteDebugView() {
    print('Debug button pressed');
    Navigator.push(
        context, MaterialPageRoute(builder: (context) => DebugView()));
  }

  IconButton _buildDebugIconButton() {
    return IconButton(
      key: Key('debugButton'),
      icon: Icon(Icons.bug_report),
      onPressed: _pageRouteDebugView,
    );
  }

  StreamBuilder<bool> titleAppBar() {
    final bBloc = BlocProvider.of(context).bluetoothBlocGetter;
    var appBarText;
    return StreamBuilder<bool>(
        stream: bBloc.isConnected$,
        initialData: false,
        builder: (BuildContext context, AsyncSnapshot<bool> snapshot) {
          if (snapshot.hasData) {
            snapshot.data
                ? appBarText = 'Connected'
                : appBarText = 'Disconnected';
            return AnimatedSwitcher(
              duration: Duration(milliseconds: 300),
              transitionBuilder: (Widget child, Animation<double> opacity) {
                return FadeTransition(child: child, opacity: opacity);
              },
              child: Text(
                '$appBarText',
                key: ValueKey<String>(appBarText),
                textDirection: TextDirection.ltr,
              ),
            );
          } else
            return Text('Disconnected');
        });
  }

  List<Widget> actionsAppBar() {
    final debugBloc = BlocProvider.of(context).debugBlocGetter;
    return <Widget>[
      StreamBuilder<bool>(
        stream: debugBloc.debugEnabledStatus$,
        initialData: false,
        builder: (BuildContext context, AsyncSnapshot<bool> snapshotDebug) {
          if (snapshotDebug.hasData) {
            return snapshotDebug.data ? _buildDebugIconButton() : Container();
          } else
            return Container();
        },
      ),
    ];
  }

  return AppBar(
    title: titleAppBar(),
    actions: actionsAppBar(),
  );
}