Masterarbeit/lib/ui/pageTouchPoints/ScanResultBottomSheet.dart

import 'package:flutter_blue/flutter_blue.dart';
import 'package:flutter/material.dart';
import 'package:touch_demonstrator/src/blocs/BlocProvider.dart';


class Modal {
  _buildScanResult(
      BuildContext context, Map<DeviceIdentifier, ScanResult> scanResults) {
    final bBloc = BlocProvider.of(context).bluetoothBlocGetter;
    return scanResults.values
        .where((result) => result.advertisementData.localName
            .contains('Touchpad Demonstrator'))
        .map((result) => ScanResultTile(
            result: result,
            onTapCallback: () {
              bBloc.connect.add(result);
              print('Connect to ${result.device.name} pressed!');
              Navigator.pop(context);
            }))
        .toList();
  }

  _buildHeaderBottomSheet(BuildContext context) {
    return Container(
      color: Theme.of(context).primaryColor,
      child: ListTile(
        title: Center(
          child: Text(
            "CHOOSE TOUCHPAD",
            style: TextStyle(color: Colors.white),
          ),
        ),
      ),
    );
  }

  connectBottomSheet(
      BuildContext context, Map<DeviceIdentifier, ScanResult> scanResults) {
    print('Modal Sheet - Result Count: ${scanResults.length}');
    var _bottomSheetElements = List<Widget>();
    _bottomSheetElements.add(_buildHeaderBottomSheet(context));
    _bottomSheetElements.addAll(_buildScanResult(context, scanResults));
    showModalBottomSheet(
        context: context,
        builder: (BuildContext context) {
          return Container(
              child: Padding(
                  padding: EdgeInsets.all(0.0),
                  child: ListView(
                      shrinkWrap: true, children: _bottomSheetElements)));
        });
  }
}

class ScanResultTile extends StatelessWidget {
  final ScanResult result;
  final VoidCallback onTapCallback;

  const ScanResultTile({Key key, this.result, this.onTapCallback})
      : super(key: key);

  _buildTitle(BuildContext context) {
    var textOfTile;
    (result.device.name.length > 0)
        ? textOfTile = result.device.name
        : textOfTile = result.device.id.toString();

    return Flexible(
        child: Container(
            child: Text(
      textOfTile,
      overflow: TextOverflow.ellipsis,
      style: TextStyle(fontWeight: FontWeight.bold),
    )));
  }

  _buildConnectButton(BuildContext context) {
    return OutlineButton(
      borderSide: BorderSide(color: Theme.of(context).primaryColor),
      shape: BeveledRectangleBorder(),
      onPressed: (result.advertisementData.connectable) ? onTapCallback : null,
      child: Text('CONNECT'),
    ); // Name of devices
  }

  @override
  Widget build(BuildContext context) {
    return Container(
      child: Padding(
        padding: const EdgeInsets.all(8.0),
        child: Row(
          mainAxisAlignment: MainAxisAlignment.spaceBetween,
          children: <Widget>[
            _buildTitle(context),
            _buildConnectButton(context),
          ],
        ),
      ),
    );
  }
}